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Add extended information for E0594 #60193

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Add extended information for E0594 #60193

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twe4ked
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@twe4ked twe4ked commented Apr 23, 2019

Thanks!

r? @steveklabnik

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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @steveklabnik (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

Please see the contribution instructions for more information.

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Apr 23, 2019
@twe4ked twe4ked mentioned this pull request Apr 23, 2019
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The job x86_64-gnu-llvm-6.0 of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log. 
travis_time:end:1067dd26:start=1556012498048409945,finish=1556012636488580474,duration=138440170529
$ git checkout -qf FETCH_HEAD
travis_fold:end:git.checkout

Encrypted environment variables have been removed for security reasons.
See https://docs.travis-ci.com/user/pull-requests/#pull-requests-and-security-restrictions
$ export SCCACHE_BUCKET=rust-lang-ci-sccache2
$ export SCCACHE_REGION=us-west-1
$ export GCP_CACHE_BUCKET=rust-lang-ci-cache
$ export AWS_ACCESS_KEY_ID=AKIA46X5W6CZEJZ6XT55
---
travis_time:start:test_ui
Check compiletest suite=ui mode=ui (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:04:43] 
[01:04:43] running 5459 tests
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[01:08:07] failures:
[01:08:07] 
[01:08:07] ---- [ui] ui/E0594.rs stdout ----
[01:08:07] diff of stderr:
---
[01:08:07] 9 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/E0594/E0594.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args E0594.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/E0594.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/E0594/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/E0594/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to immutable static item `NUM`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     NUM = 20; //~ ERROR cannot assign to immutable static item `NUM`
[01:08:07] 
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 72 
[01:08:07] 73 error: aborting due to 6 previous errors
[01:08:07] 74 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 76 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrow-immutable-upvar-mutation/borrow-immutable-upvar-mutation.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/borrow-immutable-upvar-mutation.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/borrow-immutable-upvar-mutation.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrow-immutable-upvar-mutation/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrow-immutable-upvar-mutation/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x`, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _f = to_fn(|| x = 42); //~ ERROR cannot assign
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _f = to_fn(|| x = 42); //~ ERROR cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `y` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _g = to_fn(|| set(&mut y)); //~ ERROR cannot borrow
[01:08:07]    |                               ^^^^^^ cannot borrow as mutable
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _g = to_fn(|| set(&mut y)); //~ ERROR cannot borrow
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `z`, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _h = to_fn_mut(|| { set(&mut z); to_fn(|| z = 42); }); //~ ERROR cannot assign
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _h = to_fn_mut(|| { set(&mut z); to_fn(|| z = 42); }); //~ ERROR cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _f = to_fn(move || x = 42); //~ ERROR cannot assign
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _f = to_fn(move || x = 42); //~ ERROR cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `y` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _g = to_fn(move || set(&mut y)); //~ ERROR cannot borrow
[01:08:07]    |                                    ^^^^^^ cannot borrow as mutable
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _g = to_fn(move || set(&mut y)); //~ ERROR cannot borrow
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `z`, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _h = to_fn_mut(move || { set(&mut z); to_fn(move || z = 42); }); //~ ERROR cannot assign
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let _h = to_fn_mut(move || { set(&mut z); to_fn(move || z = 42); }); //~ ERROR cannot assign
[01:08:07] 
[01:08:07] error: aborting due to 6 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
---
[01:08:07] 19 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc/borrowck-assign-to-andmut-in-aliasable-loc.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/borrowck-assign-to-andmut-in-aliasable-loc.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `*s.pointer` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn a(s: &S) {
[01:08:07]    |         -- help: consider changing this to be a mutable reference: `&mut S<'_>`
[01:08:07] LL |     *s.pointer += 1; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^^^^^^^^^^ `s` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*s.pointer` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn c(s: & &mut S) {
[01:08:07]    |         -------- help: consider changing this to be a mutable reference: `&mut &mut S<'_>`
[01:08:07] LL |     *s.pointer += 1; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^^^^^^^^^^ `s` is a `&` reference, so the data it refers to cannot be written
[01:08:07] error: aborting due to 2 previous errors
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] 
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-assign-to-constants/borrowck-assign-to-constants.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/borrowck-assign-to-constants.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/borrowck-assign-to-constants.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-assign-to-constants/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-assign-to-constants/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
---
[01:08:07] 
[01:08:07] 27 
[01:08:07] 28 error: aborting due to 3 previous errors
[01:08:07] 29 
[01:08:07] - Some errors have detailed explanations: E0502, E0596.
[01:08:07] + Some errors have detailed explanations: E0502, E0594, E0596.
[01:08:07] 32 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc/borrowck-borrow-mut-base-ptr-in-aliasable-loc.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `**t1` which is behind a `&` reference
[01:08:07]    |
[01:08:07] LL |     let t1 = t0;
[01:08:07]    |         -- help: consider changing this to be a mutable reference: `&mut &mut isize`
[01:08:07]    |         -- help: consider changing this to be a mutable reference: `&mut &mut isize`
[01:08:07] LL |     let p: &isize = &**t0;
[01:08:07] LL |     **t1 = 22; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^^^^ `t1` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0502]: cannot borrow `**t0` as immutable because it is also borrowed as mutable
[01:08:07]    |
[01:08:07] LL |     let t1 = &mut *t0;
[01:08:07]    |              -------- mutable borrow occurs here
[01:08:07]    |              -------- mutable borrow occurs here
[01:08:07] LL |     let p: &isize = &**t0; //~ ERROR cannot borrow
[01:08:07] LL |     **t1 = 22;
[01:08:07]    |     --------- mutable borrow later used here
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `**t0` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn foo4(t0: & &mut isize) {
[01:08:07]    |             ------------ help: consider changing this to be a mutable reference: `&mut &mut isize`
[01:08:07] LL |     let x:  &mut isize = &mut **t0; //~ ERROR cannot borrow
[01:08:07]    |                          ^^^^^^^^^ `t0` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] error: aborting due to 3 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0502, E0594, E0596.
[01:08:07] For more information about an error, try `rustc --explain E0502`.
---
[01:08:07] 
[01:08:07] 42 
[01:08:07] 43 error: aborting due to 7 previous errors
[01:08:07] 44 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 46 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-borrow-overloaded-deref/borrowck-borrow-overloaded-deref.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/borrowck-borrow-overloaded-deref.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/borrowck-borrow-overloaded-deref.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-borrow-overloaded-deref/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-borrow-overloaded-deref/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let __isize = &mut *x; //~ ERROR cannot borrow
[01:08:07]    |                   ^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let __isize = &mut *x; //~ ERROR cannot borrow
[01:08:07]    |                   ^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     &mut **x //~ ERROR cannot borrow
[01:08:07]    |     ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     &mut **x //~ ERROR cannot borrow
[01:08:07]    |     ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07] LL |     *x = 3; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07] LL |     **x = 3; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07] LL |     **x = 3; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^^ cannot assign
[01:08:07] 
---
[01:08:07] 
[01:08:07] 84 
[01:08:07] 85 error: aborting due to 14 previous errors
[01:08:07] 86 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 88 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-borrow-overloaded-auto-deref/borrowck-borrow-overloaded-auto-deref.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/borrowck-borrow-overloaded-auto-deref.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/borrowck-borrow-overloaded-auto-deref.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-borrow-overloaded-auto-deref/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-borrow-overloaded-auto-deref/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let __isize = &mut x.y; //~ ERROR cannot borrow
[01:08:07]    |                   ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let __isize = &mut x.y; //~ ERROR cannot borrow
[01:08:07]    |                   ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     &mut x.y //~ ERROR cannot borrow
[01:08:07]    |     ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     &mut x.y //~ ERROR cannot borrow
[01:08:07]    |     ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07] LL |     x.y = 3; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07] LL |     x.y = 3; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07] LL |     x.y = 3; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     x.set(0, 0); //~ ERROR cannot borrow
[01:08:07]    |     ^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     x.set(0, 0); //~ ERROR cannot borrow
[01:08:07]    |     ^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07] LL |     x.y_mut() //~ ERROR cannot borrow
[01:08:07]    |     ^ cannot borrow as mutable
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07] LL |     x.y_mut() //~ ERROR cannot borrow
[01:08:07]    |     ^ cannot borrow as mutable
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     *x.y_mut() = 3; //~ ERROR cannot borrow
[01:08:07]    |      ^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     *x.y_mut() = 3; //~ ERROR cannot borrow
[01:08:07]    |      ^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     *x.y_mut() = 3; //~ ERROR cannot borrow
[01:08:07]    |      ^ cannot borrow as mutable
[01:08:07] error: aborting due to 14 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
[01:08:07] For more information about an error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 50 
[01:08:07] 51 error: aborting due to 4 previous errors
[01:08:07] 52 
[01:08:07] - For more information about this error, try `rustc --explain E0500`.
[01:08:07] + Some errors have detailed explanations: E0500, E0594.
[01:08:07] 54 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-closures-unique/borrowck-closures-unique.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/borrowck-closures-unique.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/borrowck-closures-unique.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-closures-unique/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-closures-unique/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0500]: closure requires unique access to `x` but it is already borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let c1 = || get(x);
[01:08:07]    |              --     - first borrow occurs due to use of `x` in closure
[01:08:07]    |              borrow occurs here
[01:08:07]    |              borrow occurs here
[01:08:07] LL |     let c2 = || set(x); //~ ERROR closure requires unique access to `x`
[01:08:07]    |              ^^     - second borrow occurs due to use of `x` in closure
[01:08:07]    |              closure construction occurs here
[01:08:07] LL |     c1;
[01:08:07]    |     -- first borrow later used here
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0500]: closure requires unique access to `x` but it is already borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let c1 = || get(x);
[01:08:07]    |              --     - first borrow occurs due to use of `x` in closure
[01:08:07]    |              borrow occurs here
[01:08:07]    |              borrow occurs here
[01:08:07] LL |     let c2 = || { get(x); set(x); }; //~ ERROR closure requires unique access to `x`
[01:08:07]    |              ^^       - second borrow occurs due to use of `x` in closure
[01:08:07]    |              closure construction occurs here
[01:08:07] LL |     c1;
[01:08:07]    |     -- first borrow later used here
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0524]: two closures require unique access to `x` at the same time
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let c1 = || set(x);
[01:08:07]    |              --     - first borrow occurs due to use of `x` in closure
[01:08:07]    |              first closure is constructed here
[01:08:07]    |              first closure is constructed here
[01:08:07] LL |     let c2 = || set(x); //~ ERROR two closures require unique access to `x` at the same time
[01:08:07]    |              ^^     - second borrow occurs due to use of `x` in closure
[01:08:07]    |              second closure is constructed here
[01:08:07] LL |     c1;
[01:08:07]    |     -- first borrow later used here
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL | fn e(x: &'static mut isize) {
[01:08:07]    |      - help: consider changing this to be mutable: `mut x`
[01:08:07]    |      - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |     let c1 = |y: &'static mut isize| x = y;
[01:08:07] 
[01:08:07] error: aborting due to 4 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0500, E0594.
---
[01:08:07] 
[01:08:07] 96 
[01:08:07] 97 error: aborting due to 9 previous errors
[01:08:07] 98 
[01:08:07] - For more information about this error, try `rustc --explain E0506`.
[01:08:07] + Some errors have detailed explanations: E0506, E0594.
[01:08:07] 100 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-issue-14498/borrowck-issue-14498.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/borrowck-issue-14498.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/borrowck-issue-14498.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-issue-14498/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-issue-14498/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `***p` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let p = &y;
[01:08:07]    |             -- help: consider changing this to be a mutable reference: `&mut y`
[01:08:07] LL |     ***p = 2; //~ ERROR cannot assign to `***p`
[01:08:07]    |     ^^^^^^^^ `p` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0506]: cannot assign to `**y` because it is borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let p = &y;
[01:08:07]    |             -- borrow of `**y` occurs here
[01:08:07] LL |     let q = &***p;
[01:08:07] LL |     **y = 2; //~ ERROR cannot assign to `**y` because it is borrowed
[01:08:07]    |     ^^^^^^^ assignment to borrowed `**y` occurs here
[01:08:07] LL |     drop(p);
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0506]: cannot assign to `**y` because it is borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let p = &y;
[01:08:07]    |             -- borrow of `**y` occurs here
[01:08:07] LL |     let q = &***p;
[01:08:07] LL |     **y = 2; //~ ERROR cannot assign to `**y` because it is borrowed
[01:08:07]    |     ^^^^^^^ assignment to borrowed `**y` occurs here
[01:08:07] LL |     drop(p);
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0506]: cannot assign to `**y` because it is borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let p = &y;
[01:08:07]    |             -- borrow of `**y` occurs here
[01:08:07] LL |     let q = &***p;
[01:08:07] LL |     **y = 2; //~ ERROR cannot assign to `**y` because it is borrowed
[01:08:07]    |     ^^^^^^^ assignment to borrowed `**y` occurs here
[01:08:07] LL |     drop(p);
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0506]: cannot assign to `**y` because it is borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let p = &y;
[01:08:07]    |             -- borrow of `**y` occurs here
[01:08:07] LL |     let q = &***p;
[01:08:07] LL |     **y = 2; //~ ERROR cannot assign to `**y` because it is borrowed
[01:08:07]    |     ^^^^^^^ assignment to borrowed `**y` occurs here
[01:08:07] LL |     drop(p);
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0506]: cannot assign to `**y.a` because it is borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let p = &y.a;
[01:08:07]    |             ---- borrow of `**y.a` occurs here
[01:08:07] LL |     let q = &***p;
[01:08:07] LL |     **y.a = 2; //~ ERROR cannot assign to `**y.a` because it is borrowed
[01:08:07]    |     ^^^^^^^^^ assignment to borrowed `**y.a` occurs here
[01:08:07] LL |     drop(p);
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0506]: cannot assign to `**y.a` because it is borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let p = &y.a;
[01:08:07]    |             ---- borrow of `**y.a` occurs here
[01:08:07] LL |     let q = &***p;
[01:08:07] LL |     **y.a = 2; //~ ERROR cannot assign to `**y.a` because it is borrowed
[01:08:07]    |     ^^^^^^^^^ assignment to borrowed `**y.a` occurs here
[01:08:07] LL |     drop(p);
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0506]: cannot assign to `**y.a` because it is borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let p = &y.a;
[01:08:07]    |             ---- borrow of `**y.a` occurs here
[01:08:07] LL |     let q = &***p;
[01:08:07] LL |     **y.a = 2; //~ ERROR cannot assign to `**y.a` because it is borrowed
[01:08:07]    |     ^^^^^^^^^ assignment to borrowed `**y.a` occurs here
[01:08:07] LL |     drop(p);
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0506]: cannot assign to `**y.a` because it is borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let p = &y.a;
[01:08:07]    |             ---- borrow of `**y.a` occurs here
[01:08:07] LL |     let q = &***p;
[01:08:07] LL |     **y.a = 2; //~ ERROR cannot assign to `**y.a` because it is borrowed
[01:08:07]    |     ^^^^^^^^^ assignment to borrowed `**y.a` occurs here
[01:08:07] LL |     drop(p);
[01:08:07] 
[01:08:07] error: aborting due to 9 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0506, E0594.
---
[01:08:07] 
[01:08:07] 29 
[01:08:07] 30 error: aborting due to 3 previous errors
[01:08:07] 31 
[01:08:07] - For more information about this error, try `rustc --explain E0502`.
[01:08:07] + Some errors have detailed explanations: E0502, E0594.
[01:08:07] 33 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-overloaded-index-ref-index/borrowck-overloaded-index-ref-index.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/borrowck-overloaded-index-ref-index.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/borrowck-overloaded-index-ref-index.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-overloaded-index-ref-index/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/borrowck-overloaded-index-ref-index/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0502]: cannot borrow `s` as immutable because it is also borrowed as mutable
[01:08:07]   --> /checkout/src/test/ui/borrowck/borrowck-overloaded-index-ref-index.rs:49:22
[01:08:07]    |
[01:08:07] LL |     let rs = &mut s;
[01:08:07]    |              ------ mutable borrow occurs here
[01:08:07] LL |     println!("{}", f[&s]);
[01:08:07]    |                      ^^ immutable borrow occurs here
[01:08:07] LL |     drop(rs);
[01:08:07]    |          -- mutable borrow later used here
[01:08:07] 
[01:08:07] error[E0502]: cannot borrow `s` as immutable because it is also borrowed as mutable
[01:08:07] error[E0502]: cannot borrow `s` as immutable because it is also borrowed as mutable
[01:08:07]   --> /checkout/src/test/ui/borrowck/borrowck-overloaded-index-ref-index.rs:51:7
[01:08:07]    |
[01:08:07] LL |     let rs = &mut s;
[01:08:07]    |              ------ mutable borrow occurs here
[01:08:07] ...
[01:08:07] LL |     f[&s] = 10;
[01:08:07]    |       ^^ immutable borrow occurs here
[01:08:07] LL |     drop(rs);
[01:08:07]    |          -- mutable borrow later used here
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07] LL |     s[2] = 20;
[01:08:07]    |     ^^^^^^^^^ cannot assign
[01:08:07] 
---
[01:08:07] 
[01:08:07] 22 
[01:08:07] 23 error: aborting due to 3 previous errors
[01:08:07] 24 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 26 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/index-mut-help/index-mut-help.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/index-mut-help.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/index-mut-help.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/index-mut-help/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/index-mut-help/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     map["peter"].clear();           //~ ERROR
[01:08:07]    |     ^^^^^^^^^^^^ cannot borrow as mutable
[01:08:07]    |
[01:08:07]    = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `std::collections::HashMap<&str, std::string::String>`
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     map["peter"] = "0".to_string(); //~ ERROR
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let _ = &mut map["peter"];      //~ ERROR
[01:08:07]    |             ^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[01:08:07]    |
[01:08:07]    = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `std::collections::HashMap<&str, std::string::String>`
[01:08:07] error: aborting due to 3 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
[01:08:07] For more information about an error, try `rustc --explain E0594`.
---
[01:08:07] 21 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-45983.nll/issue-45983.nll.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/issue-45983.rs`
[01:08:07] 
[01:08:07] error in revision `nll`: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/issue-45983.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--cfg" "nll" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-45983.nll/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Z" "borrowck=mir" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-45983.nll/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0521]: borrowed data escapes outside of closure
[01:08:07]   --> /checkout/src/test/ui/borrowck/issue-45983.rs:19:18
[01:08:07]    |
[01:08:07] LL |     let x = None;
[01:08:07]    |         - `x` is declared here, outside of the closure body
[01:08:07] LL |     give_any(|y| x = Some(y));
[01:08:07]    |               -  ^^^^^^^^^^^ `y` escapes the closure body here
[01:08:07]    |               `y` is a reference that is only valid in the closure body
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let x = None;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |     give_any(|y| x = Some(y));
[01:08:07] 
[01:08:07] error: aborting due to 2 previous errors
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 84 
[01:08:07] 85 error: aborting due to 9 previous errors
[01:08:07] 86 
[01:08:07] - For more information about this error, try `rustc --explain E0382`.
[01:08:07] + Some errors have detailed explanations: E0382, E0594.
[01:08:07] 88 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-54499-field-mutation-of-moved-out/issue-54499-field-mutation-of-moved-out.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/issue-54499-field-mutation-of-moved-out.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/issue-54499-field-mutation-of-moved-out.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-54499-field-mutation-of-moved-out/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-54499-field-mutation-of-moved-out/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `t.0`, as `t` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let t: Tuple = (S(0), 0);
[01:08:07] LL |         drop(t);
[01:08:07] LL |         drop(t);
[01:08:07] LL |         t.0 = S(1);
[01:08:07] 
[01:08:07] error[E0382]: assign to part of moved value: `t`
[01:08:07]   --> /checkout/src/test/ui/borrowck/issue-54499-field-mutation-of-moved-out.rs:13:9
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let t: Tuple = (S(0), 0);
[01:08:07]    |             - move occurs because `t` has type `(S, i32)`, which does not implement the `Copy` trait
[01:08:07] LL |         drop(t);
[01:08:07]    |              - value moved here
[01:08:07] LL |         t.0 = S(1);
[01:08:07]    |         ^^^^^^^^^^ value partially assigned here after move
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `t.1`, as `t` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let t: Tuple = (S(0), 0);
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |         t.1 = 2;
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `u.0`, as `u` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let u: Tpair = Tpair(S(0), 0);
[01:08:07] LL |         drop(u);
[01:08:07] LL |         drop(u);
[01:08:07] LL |         u.0 = S(1);
[01:08:07] 
[01:08:07] error[E0382]: assign to part of moved value: `u`
[01:08:07]   --> /checkout/src/test/ui/borrowck/issue-54499-field-mutation-of-moved-out.rs:24:9
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let u: Tpair = Tpair(S(0), 0);
[01:08:07]    |             - move occurs because `u` has type `Tpair`, which does not implement the `Copy` trait
[01:08:07] LL |         drop(u);
[01:08:07]    |              - value moved here
[01:08:07] LL |         u.0 = S(1);
[01:08:07]    |         ^^^^^^^^^^ value partially assigned here after move
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `u.1`, as `u` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let u: Tpair = Tpair(S(0), 0);
[01:08:07] ...
[01:08:07] LL |         u.1 = 2;
[01:08:07]    |         ^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `v.x`, as `v` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let v: Spair = Spair { x: S(0), y: 0 };
[01:08:07]    |             - help: consider changing this to be mutable: `mut v`
[01:08:07] LL |         drop(v);
[01:08:07] LL |         v.x = S(1);
[01:08:07] 
[01:08:07] error[E0382]: assign to part of moved value: `v`
[01:08:07]   --> /checkout/src/test/ui/borrowck/issue-54499-field-mutation-of-moved-out.rs:35:9
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let v: Spair = Spair { x: S(0), y: 0 };
[01:08:07]    |             - move occurs because `v` has type `Spair`, which does not implement the `Copy` trait
[01:08:07] LL |         drop(v);
[01:08:07]    |              - value moved here
[01:08:07] LL |         v.x = S(1);
[01:08:07]    |         ^^^^^^^^^^ value partially assigned here after move
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `v.y`, as `v` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         let v: Spair = Spair { x: S(0), y: 0 };
[01:08:07]    |             - help: consider changing this to be mutable: `mut v`
[01:08:07] ...
[01:08:07] LL |         v.y = 2;
[01:08:07] 
[01:08:07] error: aborting due to 9 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0382, E0594.
---
[01:08:07] 
[01:08:07] 50 
[01:08:07] 51 error: aborting due to 6 previous errors
[01:08:07] 52 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 54 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.migrate/issue-55492-borrowck-migrate-scans-parents.migrate.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/issue-55492-borrowck-migrate-scans-parents.rs`
[01:08:07] 
[01:08:07] error in revision `migrate`: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--cfg" "migrate" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.migrate/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.migrate/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     pub fn e(x: &'static mut isize) {
[01:08:07]    |              - help: consider changing this to be mutable: `mut x`
[01:08:07]    |              - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         static mut Y: isize = 3;
[01:08:07] LL |         let mut c1 = |y: &'static mut isize| x = y;
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     pub fn ee(x: &'static mut isize) {
[01:08:07]    |               - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |             let mut c2 = |y: &'static mut isize| x = y;
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     pub fn capture_assign_whole(x: (i32,)) {
[01:08:07]    |                                 - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         || { x = (1,); };
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x.0`, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     pub fn capture_assign_part(x: (i32,)) {
[01:08:07]    |                                - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         || { x.0 = 1; };
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
[01:08:07]   --> /checkout/src/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.rs:52:14
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     pub fn capture_reborrow_whole(x: (i32,)) {
[01:08:07]    |                                   - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         || { &mut x; };
[01:08:07]    |              ^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x.0` as mutable, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     pub fn capture_reborrow_part(x: (i32,)) {
[01:08:07]    |                                  - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         || { &mut x.0; };
[01:08:07]    |              ^^^^^^^^ cannot borrow as mutable
[01:08:07] error: aborting due to 6 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
[01:08:07] For more information about an error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 50 
[01:08:07] 51 error: aborting due to 6 previous errors
[01:08:07] 52 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 54 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.nll/issue-55492-borrowck-migrate-scans-parents.nll.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/issue-55492-borrowck-migrate-scans-parents.rs`
[01:08:07] 
[01:08:07] error in revision `nll`: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--cfg" "nll" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.nll/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Z" "borrowck=mir" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.nll/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     pub fn e(x: &'static mut isize) {
[01:08:07]    |              - help: consider changing this to be mutable: `mut x`
[01:08:07]    |              - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         static mut Y: isize = 3;
[01:08:07] LL |         let mut c1 = |y: &'static mut isize| x = y;
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     pub fn ee(x: &'static mut isize) {
[01:08:07]    |               - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |             let mut c2 = |y: &'static mut isize| x = y;
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     pub fn capture_assign_whole(x: (i32,)) {
[01:08:07]    |                                 - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         || { x = (1,); };
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x.0`, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     pub fn capture_assign_part(x: (i32,)) {
[01:08:07]    |                                - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         || { x.0 = 1; };
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
[01:08:07]   --> /checkout/src/test/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.rs:52:14
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     pub fn capture_reborrow_whole(x: (i32,)) {
[01:08:07]    |                                   - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         || { &mut x; };
[01:08:07]    |              ^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x.0` as mutable, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     pub fn capture_reborrow_part(x: (i32,)) {
[01:08:07]    |                                  - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |         || { &mut x.0; };
[01:08:07]    |              ^^^^^^^^ cannot borrow as mutable
[01:08:07] error: aborting due to 6 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
[01:08:07] For more information about an error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 375 
[01:08:07] 376 error: aborting due to 38 previous errors
[01:08:07] 377 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 379 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/mutability-errors/mutability-errors.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/mutability-errors.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/mutability-errors.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/mutability-errors/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/mutability-errors/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn named_ref(x: &(i32,)) {
[01:08:07]    |                 ------- help: consider changing this to be a mutable reference: `&mut (i32,)`
[01:08:07] LL |     *x = (1,); //~ ERROR
[01:08:07]    |     ^^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x.0` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn named_ref(x: &(i32,)) {
[01:08:07]    |                 ------- help: consider changing this to be a mutable reference: `&mut (i32,)`
[01:08:07] LL |     *x = (1,); //~ ERROR
[01:08:07] LL |     x.0 = 1; //~ ERROR
[01:08:07]    |     ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn named_ref(x: &(i32,)) {
[01:08:07]    |                 ------- help: consider changing this to be a mutable reference: `&mut (i32,)`
[01:08:07] ...
[01:08:07] LL |     &mut *x; //~ ERROR
[01:08:07]    |     ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x.0` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn named_ref(x: &(i32,)) {
[01:08:07]    |                 ------- help: consider changing this to be a mutable reference: `&mut (i32,)`
[01:08:07] ...
[01:08:07] LL |     &mut x.0; //~ ERROR
[01:08:07]    |     ^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     *f() = (1,); //~ ERROR
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `&` reference
[01:08:07]    |
[01:08:07] LL |     f().0 = 1; //~ ERROR
[01:08:07]    |     ^^^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     &mut *f(); //~ ERROR
[01:08:07]    |     ^^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `&` reference as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     &mut f().0; //~ ERROR
[01:08:07]    |     ^^^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*x` which is behind a `*const` pointer
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | unsafe fn named_ptr(x: *const (i32,)) {
[01:08:07]    |                        ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)`
[01:08:07] LL |     *x = (1,); //~ ERROR
[01:08:07]    |     ^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x.0` which is behind a `*const` pointer
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | unsafe fn named_ptr(x: *const (i32,)) {
[01:08:07]    |                        ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)`
[01:08:07] LL |     *x = (1,); //~ ERROR
[01:08:07] LL |     (*x).0 = 1; //~ ERROR
[01:08:07]    |     ^^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `*x` as mutable, as it is behind a `*const` pointer
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | unsafe fn named_ptr(x: *const (i32,)) {
[01:08:07]    |                        ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)`
[01:08:07] ...
[01:08:07] LL |     &mut *x; //~ ERROR
[01:08:07]    |     ^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x.0` as mutable, as it is behind a `*const` pointer
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | unsafe fn named_ptr(x: *const (i32,)) {
[01:08:07]    |                        ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)`
[01:08:07] ...
[01:08:07] LL |     &mut (*x).0; //~ ERROR
[01:08:07]    |     ^^^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `*const` pointer
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     *f() = (1,); //~ ERROR
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to data in a `*const` pointer
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     (*f()).0 = 1; //~ ERROR
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `*const` pointer as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     &mut *f(); //~ ERROR
[01:08:07]    |     ^^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow data in a `*const` pointer as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     &mut (*f()).0; //~ ERROR
[01:08:07]    |     ^^^^^^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         x = (1,); //~ ERROR
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(|| {
[01:08:07]    |  ____________^
[01:08:07]    |  ____________^
[01:08:07] LL | |         x = (1,); //~ ERROR
[01:08:07] LL | |         x.0 = 1; //~ ERROR
[01:08:07] LL | |         &mut x; //~ ERROR
[01:08:07] LL | |         &mut x.0; //~ ERROR
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x.0`, as `Fn` closures cannot mutate their captured variables
[01:08:07]    |
[01:08:07] LL |         x.0 = 1; //~ ERROR
[01:08:07]    |         ^^^^^^^ cannot assign
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(|| {
[01:08:07]    |  ____________^
[01:08:07]    |  ____________^
[01:08:07] LL | |         x = (1,); //~ ERROR
[01:08:07] LL | |         x.0 = 1; //~ ERROR
[01:08:07] LL | |         &mut x; //~ ERROR
[01:08:07] LL | |         &mut x.0; //~ ERROR
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07] LL |         &mut x; //~ ERROR
[01:08:07]    |         ^^^^^^ cannot borrow as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(|| {
[01:08:07]    |  ____________^
[01:08:07]    |  ____________^
[01:08:07] LL | |         x = (1,); //~ ERROR
[01:08:07] LL | |         x.0 = 1; //~ ERROR
[01:08:07] LL | |         &mut x; //~ ERROR
[01:08:07] LL | |         &mut x.0; //~ ERROR
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x.0` as mutable, as `Fn` closures cannot mutate their captured variables
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         &mut x.0; //~ ERROR
[01:08:07]    |         ^^^^^^^^ cannot borrow as mutable
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(|| {
[01:08:07]    |  ____________^
[01:08:07]    |  ____________^
[01:08:07] LL | |         x = (1,); //~ ERROR
[01:08:07] LL | |         x.0 = 1; //~ ERROR
[01:08:07] LL | |         &mut x; //~ ERROR
[01:08:07] LL | |         &mut x.0; //~ ERROR
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         x = (1,); //~ ERROR
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(move || {
[01:08:07]    |  ____________^
[01:08:07]    |  ____________^
[01:08:07] LL | |         x = (1,); //~ ERROR
[01:08:07] LL | |         x.0 = 1; //~ ERROR
[01:08:07] LL | |         &mut x; //~ ERROR
[01:08:07] LL | |         &mut x.0; //~ ERROR
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x.0`, as `Fn` closures cannot mutate their captured variables
[01:08:07]    |
[01:08:07] LL |         x.0 = 1; //~ ERROR
[01:08:07]    |         ^^^^^^^ cannot assign
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(move || {
[01:08:07]    |  ____________^
[01:08:07]    |  ____________^
[01:08:07] LL | |         x = (1,); //~ ERROR
[01:08:07] LL | |         x.0 = 1; //~ ERROR
[01:08:07] LL | |         &mut x; //~ ERROR
[01:08:07] LL | |         &mut x.0; //~ ERROR
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07] LL |         &mut x; //~ ERROR
[01:08:07]    |         ^^^^^^ cannot borrow as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(move || {
[01:08:07]    |  ____________^
[01:08:07]    |  ____________^
[01:08:07] LL | |         x = (1,); //~ ERROR
[01:08:07] LL | |         x.0 = 1; //~ ERROR
[01:08:07] LL | |         &mut x; //~ ERROR
[01:08:07] LL | |         &mut x.0; //~ ERROR
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x.0` as mutable, as `Fn` closures cannot mutate their captured variables
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         &mut x.0; //~ ERROR
[01:08:07]    |         ^^^^^^^^ cannot borrow as mutable
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(move || {
[01:08:07]    |  ____________^
[01:08:07]    |  ____________^
[01:08:07] LL | |         x = (1,); //~ ERROR
[01:08:07] LL | |         x.0 = 1; //~ ERROR
[01:08:07] LL | |         &mut x; //~ ERROR
[01:08:07] LL | |         &mut x.0; //~ ERROR
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
[01:08:07]   --> /checkout/src/test/ui/borrowck/mutability-errors.rs:54:5
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn imm_local(x: (i32,)) {
[01:08:07] LL |     &mut x; //~ ERROR
[01:08:07]    |     ^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x.0` as mutable, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn imm_local(x: (i32,)) {
[01:08:07] LL |     &mut x; //~ ERROR
[01:08:07] LL |     &mut x; //~ ERROR
[01:08:07] LL |     &mut x.0; //~ ERROR
[01:08:07]    |     ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn imm_capture(x: (i32,)) {
[01:08:07] LL |     || {
[01:08:07] LL |     || {
[01:08:07] LL |         x = (1,); //~ ERROR
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x.0`, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn imm_capture(x: (i32,)) {
[01:08:07] ...
[01:08:07] LL |         x.0 = 1; //~ ERROR
[01:08:07]    |         ^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
[01:08:07]   --> /checkout/src/test/ui/borrowck/mutability-errors.rs:62:9
[01:08:07]    |
[01:08:07] LL | fn imm_capture(x: (i32,)) {
[01:08:07] ...
[01:08:07] LL |         &mut x; //~ ERROR
[01:08:07]    |         ^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x.0` as mutable, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn imm_capture(x: (i32,)) {
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |         &mut x.0; //~ ERROR
[01:08:07]    |         ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn imm_capture(x: (i32,)) {
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |         x = (1,); //~ ERROR
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x.0`, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn imm_capture(x: (i32,)) {
[01:08:07] ...
[01:08:07] LL |         x.0 = 1; //~ ERROR
[01:08:07]    |         ^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
[01:08:07]   --> /checkout/src/test/ui/borrowck/mutability-errors.rs:68:9
[01:08:07]    |
[01:08:07] LL | fn imm_capture(x: (i32,)) {
[01:08:07] ...
[01:08:07] LL |         &mut x; //~ ERROR
[01:08:07]    |         ^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x.0` as mutable, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn imm_capture(x: (i32,)) {
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |         &mut x.0; //~ ERROR
[01:08:07]    |         ^^^^^^^^ cannot borrow as mutable
[01:08:07] error[E0594]: cannot assign to immutable static item `X`
[01:08:07]   --> /checkout/src/test/ui/borrowck/mutability-errors.rs:76:5
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     X = (1,); //~ ERROR
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `X.0`, as `X` is an immutable static item
[01:08:07]    |
[01:08:07] LL |     X.0 = 1; //~ ERROR
[01:08:07]    |     ^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow immutable static item `X` as mutable
[01:08:07]    |
[01:08:07] LL |     &mut X; //~ ERROR
[01:08:07]    |     ^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `X.0` as mutable, as `X` is an immutable static item
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     &mut X.0; //~ ERROR
[01:08:07]    |     ^^^^^^^^ cannot borrow as mutable
[01:08:07] error: aborting due to 38 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
[01:08:07] For more information about an error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 15 
[01:08:07] 16 error: aborting due to 2 previous errors
[01:08:07] 17 
[01:08:07] - For more information about this error, try `rustc --explain E0381`.
[01:08:07] + Some errors have detailed explanations: E0381, E0594.
[01:08:07] 19 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/reassignment_immutable_fields_overlapping/reassignment_immutable_fields_overlapping.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/reassignment_immutable_fields_overlapping.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/reassignment_immutable_fields_overlapping.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/reassignment_immutable_fields_overlapping/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/reassignment_immutable_fields_overlapping/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0381]: assign to part of possibly uninitialized variable: `x`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     x.a = 1;  //~ ERROR
[01:08:07]    |     ^^^^^^^ use of possibly uninitialized `x`
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x.b`, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let x: Foo;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |     x.a = 1;  //~ ERROR
[01:08:07] LL |     x.b = 22; //~ ERROR
[01:08:07] 
[01:08:07] error: aborting due to 2 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0381, E0594.
---
[01:08:07] 
[01:08:07] 15 
[01:08:07] 16 error: aborting due to 2 previous errors
[01:08:07] 17 
[01:08:07] - For more information about this error, try `rustc --explain E0381`.
[01:08:07] + Some errors have detailed explanations: E0381, E0594.
[01:08:07] 19 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/reassignment_immutable_fields_twice/reassignment_immutable_fields_twice.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args borrowck/reassignment_immutable_fields_twice.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/borrowck/reassignment_immutable_fields_twice.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/reassignment_immutable_fields_twice/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/borrowck/reassignment_immutable_fields_twice/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x.0`, as `x` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let x: (u32, u32);
[01:08:07] LL |     x = (22, 44);
[01:08:07] LL |     x.0 = 1; //~ ERROR
[01:08:07]    |     ^^^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0381]: assign to part of possibly uninitialized variable: `x`
[01:08:07]    |
[01:08:07] LL |     x.0 = 1; //~ ERROR
[01:08:07] LL |     x.0 = 1; //~ ERROR
[01:08:07]    |     ^^^^^^^ use of possibly uninitialized `x`
[01:08:07] error: aborting due to 2 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0381, E0594.
[01:08:07] For more information about an error, try `rustc --explain E0381`.
---
[01:08:07] 
[01:08:07] 16 
[01:08:07] 17 error: aborting due to 2 previous errors
[01:08:07] 18 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 20 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/cannot-mutate-captured-non-mut-var/cannot-mutate-captured-non-mut-var.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args cannot-mutate-captured-non-mut-var.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/cannot-mutate-captured-non-mut-var.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/cannot-mutate-captured-non-mut-var/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/cannot-mutate-captured-non-mut-var/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let x = 1;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |     to_fn_once(move|| { x = 2; });
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `s` as mutable, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let s = std::io::stdin();
[01:08:07]    |         - help: consider changing this to be mutable: `mut s`
[01:08:07]    |         - help: consider changing this to be mutable: `mut s`
[01:08:07] LL |     to_fn_once(move|| { s.read_to_end(&mut Vec::new()); });
[01:08:07]    |                         ^ cannot borrow as mutable
[01:08:07] error: aborting due to 2 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
[01:08:07] For more information about an error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/closures/closure-immutable-outer-variable/closure-immutable-outer-variable.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args closures/closure-immutable-outer-variable.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/closures/closure-immutable-outer-variable.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/closures/closure-immutable-outer-variable/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/closures/closure-immutable-outer-variable/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `y`, as it is not declared as mutable
[01:08:07]   --> /checkout/src/test/ui/closures/closure-immutable-outer-variable.rs:11:26
[01:08:07]    |
[01:08:07] LL |     let y = true;
[01:08:07]    |         - help: consider changing this to be mutable: `mut y`
[01:08:07] LL |     foo(Box::new(move || y = false) as Box<_>);
[01:08:07] 
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 24 
[01:08:07] 25 error: aborting due to 3 previous errors
[01:08:07] 26 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 28 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/did_you_mean/issue-35937/issue-35937.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args did_you_mean/issue-35937.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/did_you_mean/issue-35937.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/did_you_mean/issue-35937/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/did_you_mean/issue-35937/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0596]: cannot borrow `f.v` as mutable, as `f` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let f = Foo { v: Vec::new() };
[01:08:07]    |         - help: consider changing this to be mutable: `mut f`
[01:08:07] LL |     f.v.push("cat".to_string()); //~ ERROR cannot borrow
[01:08:07]    |     ^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `s.x`, as `s` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let s = S { x: 42 };
[01:08:07]    |         - help: consider changing this to be mutable: `mut s`
[01:08:07] LL |     s.x += 1; //~ ERROR cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `s.x`, as `s` is not declared as mutable
[01:08:07]    |
[01:08:07] LL | fn bar(s: S) {
[01:08:07]    |        - help: consider changing this to be mutable: `mut s`
[01:08:07]    |        - help: consider changing this to be mutable: `mut s`
[01:08:07] LL |     s.x += 1; //~ ERROR cannot assign
[01:08:07] 
[01:08:07] error: aborting due to 3 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
---
[01:08:07] 
[01:08:07] 98 
[01:08:07] 99 error: aborting due to 12 previous errors
[01:08:07] 100 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 102 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/did_you_mean/issue-39544/issue-39544.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args did_you_mean/issue-39544.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/did_you_mean/issue-39544.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/did_you_mean/issue-39544/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/did_you_mean/issue-39544/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0596]: cannot borrow `z.x` as mutable, as `z` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let z = Z { x: X::Y };
[01:08:07]    |         - help: consider changing this to be mutable: `mut z`
[01:08:07] LL |     let _ = &mut z.x; //~ ERROR cannot borrow
[01:08:07]    |             ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `self.x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     fn foo<'z>(&'z self) {
[01:08:07]    |                -------- help: consider changing this to be a mutable reference: `&'z mut self`
[01:08:07] LL |         let _ = &mut self.x; //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `self.x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     fn foo1(&self, other: &Z) {
[01:08:07]    |             ----- help: consider changing this to be a mutable reference: `&mut self`
[01:08:07] LL |         let _ = &mut self.x; //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `other.x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     fn foo1(&self, other: &Z) {
[01:08:07]    |                           -- help: consider changing this to be a mutable reference: `&mut Z`
[01:08:07] LL |         let _ = &mut self.x; //~ ERROR cannot borrow
[01:08:07] LL |         let _ = &mut other.x; //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^^^^^^^ `other` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `self.x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     fn foo2<'a>(&'a self, other: &Z) {
[01:08:07]    |                 -------- help: consider changing this to be a mutable reference: `&'a mut self`
[01:08:07] LL |         let _ = &mut self.x; //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `other.x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     fn foo2<'a>(&'a self, other: &Z) {
[01:08:07]    |                                  -- help: consider changing this to be a mutable reference: `&mut Z`
[01:08:07] LL |         let _ = &mut self.x; //~ ERROR cannot borrow
[01:08:07] LL |         let _ = &mut other.x; //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^^^^^^^ `other` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `self.x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     fn foo3<'a>(self: &'a Self, other: &Z) {
[01:08:07]    |                       -------- help: consider changing this to be a mutable reference: `&'a mut Self`
[01:08:07] LL |         let _ = &mut self.x; //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `other.x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     fn foo3<'a>(self: &'a Self, other: &Z) {
[01:08:07]    |                                        -- help: consider changing this to be a mutable reference: `&mut Z`
[01:08:07] LL |         let _ = &mut self.x; //~ ERROR cannot borrow
[01:08:07] LL |         let _ = &mut other.x; //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^^^^^^^ `other` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `other.x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     fn foo4(other: &Z) {
[01:08:07]    |                    -- help: consider changing this to be a mutable reference: `&mut Z`
[01:08:07] LL |         let _ = &mut other.x; //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^^^^^^^ `other` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `z.x` as mutable, as `z` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | pub fn with_arg(z: Z, w: &Z) {
[01:08:07]    |                 - help: consider changing this to be mutable: `mut z`
[01:08:07] LL |     let _ = &mut z.x; //~ ERROR cannot borrow
[01:08:07]    |             ^^^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `w.x` as mutable, as it is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | pub fn with_arg(z: Z, w: &Z) {
[01:08:07]    |                          -- help: consider changing this to be a mutable reference: `&mut Z`
[01:08:07] LL |     let _ = &mut z.x; //~ ERROR cannot borrow
[01:08:07] LL |     let _ = &mut w.x; //~ ERROR cannot borrow
[01:08:07]    |             ^^^^^^^^ `w` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*x.0` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     *x.0 = 1;
[01:08:07] 
[01:08:07] error: aborting due to 12 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
---
[01:08:07] 11 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0389/E0389.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args error-codes/E0389.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/error-codes/E0389.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0389/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0389/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `fancy_ref.num` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let fancy_ref = &(&mut fancy);
[01:08:07]    |                     ------------- help: consider changing this to be a mutable reference: `&mut (&mut fancy)`
[01:08:07] LL |     fancy_ref.num = 6; //~ ERROR cannot assign to `fancy_ref.num` which is behind a `&` reference
[01:08:07]    |     ^^^^^^^^^^^^^^^^^ `fancy_ref` is a `&` reference, so the data it refers to cannot be written
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] thread 'main' panicked at 'Some tests failed', src/tools/compiletest/src/main.rs:517:22
---
[01:08:07] 15 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/fn/fn-closure-mutable-capture/fn-closure-mutable-capture.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args fn/fn-closure-mutable-capture.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/fn/fn-closure-mutable-capture.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/fn/fn-closure-mutable-capture/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/fn/fn-closure-mutable-capture/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x`, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     bar(move || x = 1);
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     bar(move || x = 1);
[01:08:07] 
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
---
[01:08:07] 19 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/immut-function-arguments/immut-function-arguments.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args immut-function-arguments.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/immut-function-arguments.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/immut-function-arguments/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/immut-function-arguments/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `*y`, as `y` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn f(y: Box<isize>) {
[01:08:07]    |      - help: consider changing this to be mutable: `mut y`
[01:08:07] LL |     *y = 5; //~ ERROR cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*q`, as `q` is not declared as mutable
[01:08:07]   --> /checkout/src/test/ui/immut-function-arguments.rs:6:35
[01:08:07] make: *** [check] Error 1
[01:08:07]    |
[01:08:07] LL |     let _frob = |q: Box<isize>| { *q = 2; }; //~ ERROR cannot assign
[01:08:07]    |                  |
[01:08:07]    |                  help: consider changing this to be mutable: `mut q`
[01:08:07] 
[01:08:07] error: aborting due to 2 previous errors
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-46023/issue-46023.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args issues/issue-46023.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/issues/issue-46023.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-46023/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-46023/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
---
[01:08:07] 
[01:08:07] 12 
[01:08:07] 13 error: aborting due to 2 previous errors
[01:08:07] 14 
[01:08:07] - For more information about this error, try `rustc --explain E0017`.
[01:08:07] + Some errors have detailed explanations: E0017, E0594.
[01:08:07] 16 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-46604/issue-46604.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args issues/issue-46604.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/issues/issue-46604.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-46604/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-46604/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0017]: references in statics may only refer to immutable values
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | static buf: &mut [u8] = &mut [1u8,2,3,4,5,7];   //~ ERROR E0017
[01:08:07]    |                         ^^^^^^^^^^^^^^^^^^^^ statics require immutable values
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `buf[_]`, as `buf` is an immutable static item
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     buf[0]=2;                                   //~ ERROR E0594
[01:08:07] 
[01:08:07] error: aborting due to 2 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0017, E0594.
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-51244/issue-51244.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args issues/issue-51244.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/issues/issue-51244.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-51244/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-51244/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `*my_ref` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let ref my_ref @ _ = 0;
[01:08:07]    |         -------------- help: consider changing this to be a mutable reference: `ref mut my_ref @ _`
[01:08:07] LL |     *my_ref = 0; //~ ERROR cannot assign to `*my_ref` which is behind a `&` reference [E0594]
[01:08:07]    |     ^^^^^^^^^^^ `my_ref` is a `&` reference, so the data it refers to cannot be written
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] 
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-51515/issue-51515.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args issues/issue-51515.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/issues/issue-51515.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-51515/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-51515/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `*foo` which is behind a `&` reference
[01:08:07]    |
[01:08:07] LL |     let foo = &16;
[01:08:07]    |               --- help: consider changing this to be a mutable reference: `&mut 16`
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |     *foo = 32;
[01:08:07]    |     ^^^^^^^^^ `foo` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*bar` which is behind a `&` reference
[01:08:07]    |
[01:08:07] LL |     let bar = foo;
[01:08:07]    |         --- help: consider changing this to be a mutable reference: `&mut i32`
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |     *bar = 64;
[01:08:07]    |     ^^^^^^^^^ `bar` is a `&` reference, so the data it refers to cannot be written
[01:08:07] error: aborting due to 2 previous errors
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] 
---
[01:08:07] 11 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/mut/mutable-class-fields-2/mutable-class-fields-2.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args mut/mutable-class-fields-2.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/mut/mutable-class-fields-2.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/mut/mutable-class-fields-2/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/mut/mutable-class-fields-2/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `self.how_hungry` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |   pub fn eat(&self) {
[01:08:07]    |              ----- help: consider changing this to be a mutable reference: `&mut self`
[01:08:07] LL |     self.how_hungry -= 5; //~ ERROR cannot assign
[01:08:07]    |     ^^^^^^^^^^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be written
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] 
---
[01:08:07] 11 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/mut/mutable-class-fields/mutable-class-fields.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args mut/mutable-class-fields.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/mut/mutable-class-fields.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/mut/mutable-class-fields/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/mut/mutable-class-fields/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `nyan.how_hungry`, as `nyan` is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |   let nyan : Cat = cat(52, 99);
[01:08:07]    |       ---- help: consider changing this to be mutable: `mut nyan`
[01:08:07] LL |   nyan.how_hungry = 0; //~ ERROR cannot assign
[01:08:07] 
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 156 
[01:08:07] 157 error: aborting due to 12 previous errors
[01:08:07] 158 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 160 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/closure-captures/closure-captures.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args nll/closure-captures.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/nll/closure-captures.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/closure-captures/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/closure-captures/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL | fn one_closure(x: i32) {
[01:08:07]    |                - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |     ||
[01:08:07] LL |     ||
[01:08:07] LL |     x = 1; //~ ERROR
[01:08:07]    |     ^^^^^ cannot assign
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL | fn one_closure(x: i32) {
[01:08:07]    |                - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |     x = 1; //~ ERROR
[01:08:07]    |     ^^^^^ cannot assign
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn two_closures(x: i32) {
[01:08:07] ...
[01:08:07] LL |         x = 1; //~ ERROR
[01:08:07]    |         ^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn two_closures(x: i32) {
[01:08:07] ...
[01:08:07] LL |         x = 1; //~ ERROR
[01:08:07]    |         ^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07] LL |         || //~ ERROR
[01:08:07]    |         ^^ cannot borrow as mutable
[01:08:07] LL |          x = 1;}
[01:08:07] LL |          x = 1;}
[01:08:07]    |          - mutable borrow occurs due to use of `x` in closure
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(|| {
[01:08:07]    |  ____________^
[01:08:07] LL | |         || //~ ERROR
[01:08:07] LL | |         || //~ ERROR
[01:08:07] LL | |          x = 1;}
[01:08:07]    | |________________^
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07] LL |         ||  //~ ERROR
[01:08:07]    |         ^^ cannot borrow as mutable
[01:08:07] LL |     x = 1;});
[01:08:07] LL |     x = 1;});
[01:08:07]    |     - mutable borrow occurs due to use of `x` in closure
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(move || {
[01:08:07]    |  ____________^
[01:08:07] LL | |         ||  //~ ERROR
[01:08:07] LL | |         ||  //~ ERROR
[01:08:07] LL | |     x = 1;});
[01:08:07]    | |___________^
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn two_closures_ref(x: i32) {
[01:08:07] ...
[01:08:07] LL |          x = 1;} //~ ERROR
[01:08:07]    |          ^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07] LL |         || //~ ERROR
[01:08:07]    |         ^^ cannot borrow as mutable
[01:08:07] LL |          x = 1;} //~ ERROR
[01:08:07] LL |          x = 1;} //~ ERROR
[01:08:07]    |          - mutable borrow occurs due to use of `x` in closure
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(|| {
[01:08:07]    |  ____________^
[01:08:07] LL | |         || //~ ERROR
[01:08:07] LL | |         || //~ ERROR
[01:08:07] LL | |          x = 1;} //~ ERROR
[01:08:07]    | |________________^
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn two_closures_ref(x: i32) {
[01:08:07] ...
[01:08:07] LL |     x = 1;}); //~ ERROR
[01:08:07]    |     ^^^^^ cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07] LL |         ||  //~ ERROR
[01:08:07]    |         ^^ cannot borrow as mutable
[01:08:07] LL |     x = 1;}); //~ ERROR
[01:08:07] LL |     x = 1;}); //~ ERROR
[01:08:07]    |     - mutable borrow occurs due to use of `x` in closure
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(move || {
[01:08:07]    |  ____________^
[01:08:07] LL | |         ||  //~ ERROR
[01:08:07] LL | |         ||  //~ ERROR
[01:08:07] LL | |     x = 1;}); //~ ERROR
[01:08:07]    | |___________^
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07] LL |         || //~ ERROR
[01:08:07]    |         ^^ cannot borrow as mutable
[01:08:07]    |         ^^ cannot borrow as mutable
[01:08:07] LL |         *x = 1;});
[01:08:07]    |          - mutable borrow occurs due to use of `x` in closure
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(|| {
[01:08:07]    |  ____________^
[01:08:07] LL | |         || //~ ERROR
[01:08:07] LL | |         || //~ ERROR
[01:08:07] LL | |         *x = 1;});
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07] LL |         || //~ ERROR
[01:08:07]    |         ^^ cannot borrow as mutable
[01:08:07]    |         ^^ cannot borrow as mutable
[01:08:07] LL |         *x = 1;});
[01:08:07]    |          - mutable borrow occurs due to use of `x` in closure
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       fn_ref(move || {
[01:08:07]    |  ____________^
[01:08:07] LL | |         || //~ ERROR
[01:08:07] LL | |         || //~ ERROR
[01:08:07] LL | |         *x = 1;});
[01:08:07] 
[01:08:07] error: aborting due to 12 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/constant-thread-locals-issue-47053/constant-thread-locals-issue-47053.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args nll/constant-thread-locals-issue-47053.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/nll/constant-thread-locals-issue-47053.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/constant-thread-locals-issue-47053/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/constant-thread-locals-issue-47053/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
---
[01:08:07] 12 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/generator-upvar-mutability/generator-upvar-mutability.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args nll/generator-upvar-mutability.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/nll/generator-upvar-mutability.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/generator-upvar-mutability/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/generator-upvar-mutability/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |     move || {
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/issue-47388/issue-47388.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args nll/issue-47388.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/nll/issue-47388.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/issue-47388/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/issue-47388/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `fancy_ref.num` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let fancy_ref = &(&mut fancy);
[01:08:07]    |                     ------------- help: consider changing this to be a mutable reference: `&mut (&mut fancy)`
[01:08:07] LL |     fancy_ref.num = 6; //~ ERROR E0594
[01:08:07]    |     ^^^^^^^^^^^^^^^^^ `fancy_ref` is a `&` reference, so the data it refers to cannot be written
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] 
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/issue-51244/issue-51244.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args nll/issue-51244.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/nll/issue-51244.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/issue-51244/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/issue-51244/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `*my_ref` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let ref my_ref @ _ = 0;
[01:08:07]    |         -------------- help: consider changing this to be a mutable reference: `ref mut my_ref @ _`
[01:08:07] LL |     *my_ref = 0;
[01:08:07]    |     ^^^^^^^^^^^ `my_ref` is a `&` reference, so the data it refers to cannot be written
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] 
---
[01:08:07] 
[01:08:07] 20 
[01:08:07] 21 error: aborting due to 2 previous errors
[01:08:07] 22 
[01:08:07] - For more information about this error, try `rustc --explain E0506`.
[01:08:07] + Some errors have detailed explanations: E0506, E0594.
[01:08:07] 24 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/issue-57989/issue-57989.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args nll/issue-57989.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/nll/issue-57989.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/issue-57989/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/nll/issue-57989/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL | fn f(x: &i32) {
[01:08:07]    |         ---- help: consider changing this to be a mutable reference: `&mut i32`
[01:08:07] LL |     let g = &x;
[01:08:07] LL |     *x = 0;     //~ ERROR cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |     ^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0506]: cannot assign to `*x` because it is borrowed
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     let g = &x;
[01:08:07]    |             -- borrow of `*x` occurs here
[01:08:07] LL |     *x = 0;     //~ ERROR cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |     ^^^^^^ assignment to borrowed `*x` occurs here
[01:08:07] LL |                 //~| ERROR cannot assign to `*x` because it is borrowed
[01:08:07] LL |     g;
[01:08:07] 
[01:08:07] error: aborting due to 2 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0506, E0594.
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfc-2005-default-binding-mode/enum/enum.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args rfc-2005-default-binding-mode/enum.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/rfc-2005-default-binding-mode/enum.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfc-2005-default-binding-mode/enum/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfc-2005-default-binding-mode/enum/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     *x += 1; //~ ERROR cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |     ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         *x += 1; //~ ERROR cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |         ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         *x += 1; //~ ERROR cannot assign to `*x` which is behind a `&` reference
[01:08:07]    |         ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
[01:08:07] error: aborting due to 3 previous errors
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] 
---
[01:08:07] 21 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfc-2005-default-binding-mode/explicit-mut/explicit-mut.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args rfc-2005-default-binding-mode/explicit-mut.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/rfc-2005-default-binding-mode/explicit-mut.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfc-2005-default-binding-mode/explicit-mut/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfc-2005-default-binding-mode/explicit-mut/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `*n` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |             *n += 1; //~ ERROR cannot assign to `*n` which is behind a `&` reference
[01:08:07]    |             ^^^^^^^ `n` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*n` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |             *n += 1; //~ ERROR cannot assign to `*n` which is behind a `&` reference
[01:08:07]    |             ^^^^^^^ `n` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*n` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |             *n += 1; //~ ERROR cannot assign to `*n` which is behind a `&` reference
[01:08:07]    |             ^^^^^^^ `n` is a `&` reference, so the data it refers to cannot be written
[01:08:07] error: aborting due to 3 previous errors
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] 
---
[01:08:07] 38 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/suggestions/suggest-ref-mut/suggest-ref-mut.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args suggestions/suggest-ref-mut.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/suggestions/suggest-ref-mut.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/suggestions/suggest-ref-mut/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/suggestions/suggest-ref-mut/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `self.0` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |     fn zap(&self) {
[01:08:07]    |            ----- help: consider changing this to be a mutable reference: `&mut self`
[01:08:07] LL |         self.0 = 32;
[01:08:07] LL |         self.0 = 32;
[01:08:07]    |         ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*foo` which is behind a `&` reference
[01:08:07]    |
[01:08:07] LL |     let ref foo = 16;
[01:08:07]    |         ------- help: consider changing this to be a mutable reference: `ref mut foo`
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |     *foo = 32;
[01:08:07]    |     ^^^^^^^^^ `foo` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*bar` which is behind a `&` reference
[01:08:07]    |
[01:08:07] LL |     if let Some(ref bar) = Some(16) {
[01:08:07]    |                 ------- help: consider changing this to be a mutable reference: `ref mut bar`
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |         *bar = 32;
[01:08:07]    |         ^^^^^^^^^ `bar` is a `&` reference, so the data it refers to cannot be written
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `*quo` which is behind a `&` reference
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         ref quo => { *quo = 32; },
[01:08:07]    |         -------      ^^^^^^^^^ `quo` is a `&` reference, so the data it refers to cannot be written
[01:08:07]    |         |
[01:08:07]    |         help: consider changing this to be a mutable reference: `ref mut quo`
[01:08:07] error: aborting due to 4 previous errors
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
[01:08:07] 
---
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/thread-local-mutation/thread-local-mutation.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args thread-local-mutation.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/thread-local-mutation.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/thread-local-mutation/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/thread-local-mutation/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to immutable static item `S`
[01:08:07]   --> /checkout/src/test/ui/thread-local-mutation.rs:11:5
[01:08:07]    |
[01:08:07] LL |     S = "after"; //~ ERROR cannot assign to immutable
[01:08:07] 
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
---
[01:08:07] 
[01:08:07] 71 
[01:08:07] 72 error: aborting due to 8 previous errors
[01:08:07] 73 
[01:08:07] - For more information about this error, try `rustc --explain E0596`.
[01:08:07] + Some errors have detailed explanations: E0594, E0596.
[01:08:07] 75 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/unboxed-closures/unboxed-closure-immutable-capture/unboxed-closure-immutable-capture.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args unboxed-closures/unboxed-closure-immutable-capture.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/unboxed-closures/unboxed-closure-immutable-capture.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/unboxed-closures/unboxed-closure-immutable-capture/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/unboxed-closures/unboxed-closure-immutable-capture/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |     move || x = 1; //~ ERROR cannot assign
[01:08:07] LL |     move || x = 1; //~ ERROR cannot assign
[01:08:07]    |             ^^^^^ cannot assign
[01:08:07] 
[01:08:07] error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
[01:08:07]   --> /checkout/src/test/ui/unboxed-closures/unboxed-closure-immutable-capture.rs:10:17
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] LL |     move || x = 1; //~ ERROR cannot assign
[01:08:07] LL |     move || set(&mut x); //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
---
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
[01:08:07] LL |     move || set(&mut x); //~ ERROR cannot borrow
[01:08:07]    |                 ^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
---
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
[01:08:07] LL |     || set(&mut x); //~ ERROR cannot borrow
[01:08:07]    |            ^^^^^^ cannot borrow as mutable
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `x`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
---
[01:08:07]    |
[01:08:07] LL |     let x = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut x`
[01:08:07] ...
[01:08:07] LL |     || set(&mut x); //~ ERROR cannot borrow
[01:08:07]    |            ^^^^^^ cannot borrow as mutable
[01:08:07] error: aborting due to 8 previous errors
[01:08:07] 
[01:08:07] Some errors have detailed explanations: E0594, E0596.
[01:08:07] For more information about an error, try `rustc --explain E0594`.
---
[01:08:07] 19 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/unboxed-closures/unboxed-closures-mutated-upvar-from-fn-closure/unboxed-closures-mutated-upvar-from-fn-closure.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args unboxed-closures/unboxed-closures-mutated-upvar-from-fn-closure.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/unboxed-closures/unboxed-closures-mutated-upvar-from-fn-closure.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/unboxed-closures/unboxed-closures-mutated-upvar-from-fn-closure/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/unboxed-closures/unboxed-closures-mutated-upvar-from-fn-closure/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `counter`, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07] LL |         counter += 1;
[01:08:07]    |         ^^^^^^^^^^^^ cannot assign
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07] LL |       call(|| {
[01:08:07]    |  __________^
[01:08:07] LL | |         counter += 1;
[01:08:07] LL | |         counter += 1;
[01:08:07] LL | |         //~^ ERROR cannot assign to `counter`
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] error: aborting due to previous error
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
---
[01:08:07] 45 
[01:08:07] 
[01:08:07] 
[01:08:07] The actual stderr differed from the expected stderr.
[01:08:07] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/unboxed-closures/unboxed-closures-mutate-upvar/unboxed-closures-mutate-upvar.stderr
[01:08:07] To update references, rerun the tests and pass the `--bless` flag
[01:08:07] To only update this specific test, also pass `--test-args unboxed-closures/unboxed-closures-mutate-upvar.rs`
[01:08:07] error: 1 errors occurred comparing output.
[01:08:07] status: exit code: 1
[01:08:07] status: exit code: 1
[01:08:07] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/unboxed-closures/unboxed-closures-mutate-upvar.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/unboxed-closures/unboxed-closures-mutate-upvar/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/unboxed-closures/unboxed-closures-mutate-upvar/auxiliary" "-A" "unused"
[01:08:07] ------------------------------------------
[01:08:07] 
[01:08:07] ------------------------------------------
[01:08:07] stderr:
[01:08:07] stderr:
[01:08:07] ------------------------------------------
[01:08:07] error[E0594]: cannot assign to `n`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let n = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut n`
[01:08:07]    |         - help: consider changing this to be mutable: `mut n`
[01:08:07] LL |     let mut f = to_fn_mut(|| {
[01:08:07] LL |         n += 1; //~ ERROR cannot assign to `n`, as it is not declared as mutable
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `n`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let n = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut n`
[01:08:07] ...
[01:08:07] ...
[01:08:07] LL |         n += 1; //~ ERROR cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `n`, as it is not declared as mutable
[01:08:07]    |
[01:08:07] LL |     let n = 0;
[01:08:07]    |         - help: consider changing this to be mutable: `mut n`
[01:08:07]    |         - help: consider changing this to be mutable: `mut n`
[01:08:07] LL |     let mut f = to_fn(move || {
[01:08:07] LL |         n += 1; //~ ERROR cannot assign
[01:08:07] 
[01:08:07] 
[01:08:07] error[E0594]: cannot assign to `n`, as it is a captured variable in a `Fn` closure
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |         n += 1; //~ ERROR cannot assign
[01:08:07]    |
[01:08:07]    |
[01:08:07] help: consider changing this to accept closures that implement `FnMut`
[01:08:07]    |
[01:08:07]    |
[01:08:07] LL |       let mut f = to_fn(move || {
[01:08:07]    |  _______________________^
[01:08:07] LL | |         n += 1; //~ ERROR cannot assign
[01:08:07] LL | |     });
[01:08:07] 
[01:08:07] error: aborting due to 4 previous errors
[01:08:07] 
[01:08:07] For more information about this error, try `rustc --explain E0594`.
---
[01:08:07] test result: FAILED. 5394 passed; 44 failed; 21 ignored; 0 measured; 0 filtered out
[01:08:07] 
[01:08:07] 
[01:08:07] 
[01:08:07] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--src-base" "/checkout/src/test/ui" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--mode" "ui" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/usr/lib/llvm-6.0/bin/FileCheck" "--host-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python2.7" "--lldb-python" "/usr/bin/python2.7" "--gdb" "/usr/bin/gdb" "--quiet" "--llvm-version" "6.0.0\n" "--system-llvm" "--cc" "" "--cxx" "" "--cflags" "" "--llvm-components" "" "--llvm-cxxflags" "" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"
[01:08:07] 
[01:08:07] 
[01:08:07] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test
[01:08:07] Build completed unsuccessfully in 0:04:25
---
travis_time:end:089f30d0:start=1556016734727247637,finish=1556016734734155590,duration=6907953
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:091071c0
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:0eeedb60
$ dmesg | grep -i kill

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

@GuillaumeGomez
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You need to update tests as well.

@rust-highfive
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The job x86_64-gnu-llvm-6.0 of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log. 
travis_time:end:0c2323e0:start=1556020801833582478,finish=1556020901479868523,duration=99646286045
$ git checkout -qf FETCH_HEAD
travis_fold:end:git.checkout

Encrypted environment variables have been removed for security reasons.
See https://docs.travis-ci.com/user/pull-requests/#pull-requests-and-security-restrictions
$ export SCCACHE_BUCKET=rust-lang-ci-sccache2
$ export SCCACHE_REGION=us-west-1
$ export GCP_CACHE_BUCKET=rust-lang-ci-cache
$ export AWS_ACCESS_KEY_ID=AKIA46X5W6CZEJZ6XT55
---
travis_time:start:test_assembly
Check compiletest suite=assembly mode=assembly (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:12:42] 
[01:12:42] running 9 tests
[01:12:42] iiiiiiiii
[01:12:42] 
[01:12:42]  finished in 0.150
[01:12:42] travis_fold:end:test_assembly

---
travis_time:start:test_debuginfo
Check compiletest suite=debuginfo mode=debuginfo-both (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:12:58] 
[01:12:58] running 121 tests
[01:13:23] .iiiii...i.....i..i...i..i.i.i..i.ii...i.....i..i....i..........iiii..........i...ii...i.......ii.i. 100/121
[01:13:27] i.i......iii.i.....ii
[01:13:27] 
[01:13:27]  finished in 29.368
[01:13:27] travis_fold:end:test_debuginfo

---
[01:41:20] ---- /checkout/obj/build/x86_64-unknown-linux-gnu/test/error-index.md - Rust_Compiler_Error_Index::E0594 (line 9891) stdout ----
[01:41:20] error: expected type, found `}`
[01:41:20]  --> /checkout/obj/build/x86_64-unknown-linux-gnu/test/error-index.md:9895:1
[01:41:20]   |
[01:41:20] 5 | https://doc.rust-lang.org/stable/rust-by-example/custom_types/constants.html
[01:41:20]   |      - help: try using a semicolon: `;`
[01:41:20]   | ^ expecting a type here because of type ascription
[01:41:20] 
[01:41:20] error: aborting due to previous error
[01:41:20] 
---
[01:41:20] 
[01:41:20] 
[01:41:20] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test
[01:41:20] Build completed unsuccessfully in 0:39:58
[01:41:20] Makefile:48: recipe for target 'check' failed
[01:41:20] make: *** [check] Error 1
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:1d5ac4f0
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Tue Apr 23 13:43:11 UTC 2019
---
travis_time:end:1381c091:start=1556026992659289065,finish=1556026992664021705,duration=4732640
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:191e0f64
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb --batch -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:06214ba8
travis_time:start:06214ba8
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:2d332ffa
$ dmesg | grep -i kill

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

@twe4ked
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twe4ked commented Apr 26, 2019

Is there a good way to run just the failing doc specs (or at least a smaller number of them)?

@tanriol
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tanriol commented May 5, 2019

E0594 is not specific to statics (playground producing it without any statics).

@twe4ked
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twe4ked commented May 7, 2019

Yeah you're right Denis. This definitely needs work, I might have a bit more of a play and see if I can work out a better way to write this–it may be out of my level of knowledge though. If I don't get to it soon I'll close the PR.

@Dylan-DPC-zz Dylan-DPC-zz added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels May 20, 2019
@Dylan-DPC-zz
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ping from triage @twe4ked any updates on this?

@twe4ked
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twe4ked commented May 20, 2019

Thanks for the ping. I'm not really sure where to take it from here and I know now that there is potentially bunch of information looking. Sorry!

@twe4ked twe4ked closed this May 20, 2019
@twe4ked twe4ked deleted the e0594-extended-information branch May 20, 2019 23:04
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@twe4ked @rust-highfive @GuillaumeGomez @tanriol @Dylan-DPC-zz @steveklabnik