Stabilize namespaced and weak dependency features. #10269

ehuss · 2022-01-06T23:50:34Z

This stabilizes the namespaced and weak dependency features. Support is now enabled on crates.io, so this should be ready to go.

As a part of this change, the new feature resolver is now enabled all of the time. This is fairly risky, since there are likely edge cases that haven't been exercised.
NOTE: Projects using resolver="1" should continue to have the same behavior, the old resolver behavior is emulated.

Closes #5565
Closes #8832

rust-highfive · 2022-01-06T23:50:37Z

r? @Eh2406

(rust-highfive has picked a reviewer for you, use r? to override)

alexcrichton · 2022-01-11T20:14:14Z

r? @alexcrichton

@rfcbot fcp merge

Thanks @ehuss for implementing this and pushing on this! This looks great to me and I'll do the fcp report for a full merge.

rfcbot · 2022-01-11T20:14:15Z

Team member @alexcrichton has proposed to merge this. The next step is review by the rest of the tagged team members:

No concerns currently listed.

Once a majority of reviewers approve (and at most 2 approvals are outstanding), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

See this document for info about what commands tagged team members can give me.

rfcbot · 2022-01-11T21:28:59Z

🔔 This is now entering its final comment period, as per the review above. 🔔

alexcrichton · 2022-01-12T15:14:54Z

@rfcbot fcp merge

🎊

alexcrichton · 2022-01-12T15:15:03Z

I need to wake up

@bors: r+

bors · 2022-01-12T15:15:05Z

📌 Commit 43a063c has been approved by alexcrichton

bors · 2022-01-12T15:15:12Z

⌛ Testing commit 43a063c with merge e77c071...

bors · 2022-01-12T15:51:35Z

☀️ Test successful - checks-actions
Approved by: alexcrichton
Pushing e77c071 to master...

Update cargo 16 commits in 358e79fe56fe374649275ca7aebaafd57ade0e8d..95bb3c92bf516017e812e7f1c14c2dea3845b30e 2022-01-04 18:39:45 +0000 to 2022-01-18 17:39:35 +0000 - Error when setting crate type of both dylib and cdylib in library (rust-lang/cargo#10243) - Include `help` in `--list` (rust-lang/cargo#10300) - Add report subcommand to bash completion. (rust-lang/cargo#10295) - Downgrade some log messages. (rust-lang/cargo#10296) - Enable shortcut for triage bot (rust-lang/cargo#10298) - Bump to 0.61.0, update changelog (rust-lang/cargo#10294) - use new cargo fmt option (rust-lang/cargo#10291) - Add `run-fail` to semver-check for docs (rust-lang/cargo#10287) - Use `is_symlink()` method (rust-lang/cargo#10290) - Stabilize namespaced and weak dependency features. (rust-lang/cargo#10269) - Port cargo to clap3 (rust-lang/cargo#10265) - feat: support rustflags per profile (rust-lang/cargo#10217) - Make bors ignore the PR template so it doesn't end up in merge messages (rust-lang/cargo#10267) - Be resilient to most IO error and filesystem loop while walking dirs (rust-lang/cargo#10214) - Remove the option to disable pipelining (rust-lang/cargo#10258) - Always ask rustc for messages about artifacts, and always process them (rust-lang/cargo#10255)

As part of namespaced features, optional dependencies now appear as a feature in the features table: rust-lang/cargo#10269

Pkgsrc changes: * Bump available bootstraps to 1.58.1. * Adjust one patch (and checksum) so that it still applies. Upstream changes: Version 1.59.0 (2022-02-24) ========================== Language -------- - [Stabilize default arguments for const generics][90207] - [Stabilize destructuring assignment][90521] - [Relax private in public lint on generic bounds and where clauses of trait impls][90586] - [Stabilize asm! and global_asm! for x86, x86_64, ARM, Aarch64, and RISC-V][91728] Compiler -------- - [Stabilize new symbol mangling format, leaving it opt-in (-Csymbol-mangling-version=v0)][90128] - [Emit LLVM optimization remarks when enabled with `-Cremark`][90833] - [Fix sparc64 ABI for aggregates with floating point members][91003] - [Warn when a `#[test]`-like built-in attribute macro is present multiple times.][91172] - [Add support for riscv64gc-unknown-freebsd][91284] - [Stabilize `-Z emit-future-incompat` as `--json future-incompat`][91535] - [Soft disable incremental compilation][94124] This release disables incremental compilation, unless the user has explicitly opted in via the newly added RUSTC_FORCE_INCREMENTAL=1 environment variable. This is due to a known and relatively frequently occurring bug in incremental compilation, which causes builds to issue internal compiler errors. This particular bug is already fixed on nightly, but that fix has not yet rolled out to stable and is deemed too risky for a direct stable backport. As always, we encourage users to test with nightly and report bugs so that we can track failures and fix issues earlier. See [94124] for more details. [94124]: rust-lang/rust#94124 Libraries --------- - [Remove unnecessary bounds for some Hash{Map,Set} methods][91593] Stabilized APIs --------------- - [`std::thread::available_parallelism`][available_parallelism] - [`Result::copied`][result-copied] - [`Result::cloned`][result-cloned] - [`arch::asm!`][asm] - [`arch::global_asm!`][global_asm] - [`ops::ControlFlow::is_break`][is_break] - [`ops::ControlFlow::is_continue`][is_continue] - [`TryFrom<char> for u8`][try_from_char_u8] - [`char::TryFromCharError`][try_from_char_err] implementing `Clone`, `Debug`, `Display`, `PartialEq`, `Copy`, `Eq`, `Error` - [`iter::zip`][zip] - [`NonZeroU8::is_power_of_two`][is_power_of_two8] - [`NonZeroU16::is_power_of_two`][is_power_of_two16] - [`NonZeroU32::is_power_of_two`][is_power_of_two32] - [`NonZeroU64::is_power_of_two`][is_power_of_two64] - [`NonZeroU128::is_power_of_two`][is_power_of_two128] - [`DoubleEndedIterator for ToLowercase`][lowercase] - [`DoubleEndedIterator for ToUppercase`][uppercase] - [`TryFrom<&mut [T]> for [T; N]`][tryfrom_ref_arr] - [`UnwindSafe for Once`][unwindsafe_once] - [`RefUnwindSafe for Once`][refunwindsafe_once] - [armv8 neon intrinsics for aarch64][stdarch/1266] Const-stable: - [`mem::MaybeUninit::as_ptr`][muninit_ptr] - [`mem::MaybeUninit::assume_init`][muninit_init] - [`mem::MaybeUninit::assume_init_ref`][muninit_init_ref] - [`ffi::CStr::from_bytes_with_nul_unchecked`][cstr_from_bytes] Cargo ----- - [Stabilize the `strip` profile option][cargo/10088] - [Stabilize future-incompat-report][cargo/10165] - [Support abbreviating `--release` as `-r`][cargo/10133] - [Support `term.quiet` configuration][cargo/10152] - [Remove `--host` from cargo {publish,search,login}][cargo/10145] Compatibility Notes ------------------- - [Refactor weak symbols in std::sys::unix][90846] This may add new, versioned, symbols when building with a newer glibc, as the standard library uses weak linkage rather than dynamically attempting to load certain symbols at runtime. - [Deprecate crate_type and crate_name nested inside `#![cfg_attr]`][83744] This adds a future compatibility lint to supporting the use of cfg_attr wrapping either crate_type or crate_name specification within Rust files; it is recommended that users migrate to setting the equivalent command line flags. - [Remove effect of `#[no_link]` attribute on name resolution][92034] This may expose new names, leading to conflicts with preexisting names in a given namespace and a compilation failure. - [Cargo will document libraries before binaries.][cargo/10172] - [Respect doc=false in dependencies, not just the root crate][cargo/10201] - [Weaken guarantee around advancing underlying iterators in zip][83791] - [Make split_inclusive() on an empty slice yield an empty output][89825] - [Update std::env::temp_dir to use GetTempPath2 on Windows when available.][89999] - [unreachable! was updated to match other formatting macro behavior on Rust 2021][92137] Internal Changes ---------------- These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of rustc and related tools. - [Fix many cases of normalization-related ICEs][91255] - [Replace dominators algorithm with simple Lengauer-Tarjan][85013] - [Store liveness in interval sets for region inference][90637] - [Remove `in_band_lifetimes` from the compiler and standard library, in preparation for removing this unstable feature.][91867] [91867]: rust-lang/rust#91867 [83744]: rust-lang/rust#83744 [83791]: rust-lang/rust#83791 [85013]: rust-lang/rust#85013 [89825]: rust-lang/rust#89825 [89999]: rust-lang/rust#89999 [90128]: rust-lang/rust#90128 [90207]: rust-lang/rust#90207 [90521]: rust-lang/rust#90521 [90586]: rust-lang/rust#90586 [90637]: rust-lang/rust#90637 [90833]: rust-lang/rust#90833 [90846]: rust-lang/rust#90846 [91003]: rust-lang/rust#91003 [91172]: rust-lang/rust#91172 [91255]: rust-lang/rust#91255 [91284]: rust-lang/rust#91284 [91535]: rust-lang/rust#91535 [91593]: rust-lang/rust#91593 [91728]: rust-lang/rust#91728 [91878]: rust-lang/rust#91878 [91896]: rust-lang/rust#91896 [91926]: rust-lang/rust#91926 [91984]: rust-lang/rust#91984 [92020]: rust-lang/rust#92020 [92034]: rust-lang/rust#92034 [92483]: rust-lang/rust#92483 [cargo/10088]: rust-lang/cargo#10088 [cargo/10133]: rust-lang/cargo#10133 [cargo/10145]: rust-lang/cargo#10145 [cargo/10152]: rust-lang/cargo#10152 [cargo/10165]: rust-lang/cargo#10165 [cargo/10172]: rust-lang/cargo#10172 [cargo/10201]: rust-lang/cargo#10201 [cargo/10269]: rust-lang/cargo#10269 [cstr_from_bytes]: https://doc.rust-lang.org/stable/std/ffi/struct.CStr.html#method.from_bytes_with_nul_unchecked [muninit_ptr]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.as_ptr [muninit_init]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.assume_init [muninit_init_ref]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.assume_init_ref [unwindsafe_once]: https://doc.rust-lang.org/stable/std/sync/struct.Once.html#impl-UnwindSafe [refunwindsafe_once]: https://doc.rust-lang.org/stable/std/sync/struct.Once.html#impl-RefUnwindSafe [tryfrom_ref_arr]: https://doc.rust-lang.org/stable/std/convert/trait.TryFrom.html#impl-TryFrom%3C%26%27_%20mut%20%5BT%5D%3E [lowercase]: https://doc.rust-lang.org/stable/std/char/struct.ToLowercase.html#impl-DoubleEndedIterator [uppercase]: https://doc.rust-lang.org/stable/std/char/struct.ToUppercase.html#impl-DoubleEndedIterator [try_from_char_err]: https://doc.rust-lang.org/stable/std/char/struct.TryFromCharError.html [available_parallelism]: https://doc.rust-lang.org/stable/std/thread/fn.available_parallelism.html [result-copied]: https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.copied [result-cloned]: https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.cloned [asm]: https://doc.rust-lang.org/stable/core/arch/macro.asm.html [global_asm]: https://doc.rust-lang.org/stable/core/arch/macro.global_asm.html [is_break]: https://doc.rust-lang.org/stable/std/ops/enum.ControlFlow.html#method.is_break [is_continue]: https://doc.rust-lang.org/stable/std/ops/enum.ControlFlow.html#method.is_continue [try_from_char_u8]: https://doc.rust-lang.org/stable/std/primitive.char.html#impl-TryFrom%3Cchar%3E [zip]: https://doc.rust-lang.org/stable/std/iter/fn.zip.html [is_power_of_two8]: https://doc.rust-lang.org/stable/core/num/struct.NonZeroU8.html#method.is_power_of_two [is_power_of_two16]: https://doc.rust-lang.org/stable/core/num/struct.NonZeroU16.html#method.is_power_of_two [is_power_of_two32]: https://doc.rust-lang.org/stable/core/num/struct.NonZeroU32.html#method.is_power_of_two [is_power_of_two64]: https://doc.rust-lang.org/stable/core/num/struct.NonZeroU64.html#method.is_power_of_two [is_power_of_two128]: https://doc.rust-lang.org/stable/core/num/struct.NonZeroU128.html#method.is_power_of_two [stdarch/1266]: rust-lang/stdarch#1266

Pkgsrc changes: * Bump available bootstraps to 1.59.0. * Delete one patch which no longer applies, adjust another. Upstream changes: Version 1.60.0 (2022-04-07) ========================== Language -------- - [Stabilize `#[cfg(panic = "...")]` for either `"unwind"` or `"abort"`.] [93658] - [Stabilize `#[cfg(target_has_atomic = "...")]` for each integer size and `"ptr"`.][93824] Compiler -------- - [Enable combining `+crt-static` and `relocation-model=pic` on `x86_64-unknown-linux-gnu`][86374] - [Fixes wrong `unreachable_pub` lints on nested and glob public reexport][87487] - [Stabilize `-Z instrument-coverage` as `-C instrument-coverage`][90132] - [Stabilize `-Z print-link-args` as `--print link-args`][91606] - [Add new Tier 3 target `mips64-openwrt-linux-musl`\*][92300] - [Add new Tier 3 target `armv7-unknown-linux-uclibceabi` (softfloat)\*][92383] - [Fix invalid removal of newlines from doc comments][92357] - [Add kernel target for RustyHermit][92670] - [Deny mixing bin crate type with lib crate types][92933] - [Make rustc use `RUST_BACKTRACE=full` by default][93566] - [Upgrade to LLVM 14][93577] \* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Guarantee call order for `sort_by_cached_key`][89621] - [Improve `Duration::try_from_secs_f32`/`f64` accuracy by directly processing exponent and mantissa][90247] - [Make `Instant::{duration_since, elapsed, sub}` saturating][89926] - [Remove non-monotonic clocks workarounds in `Instant::now`][89926] - [Make `BuildHasherDefault`, `iter::Empty` and `future::Pending` covariant][92630] Stabilized APIs --------------- - [`Arc::new_cyclic`][arc_new_cyclic] - [`Rc::new_cyclic`][rc_new_cyclic] - [`slice::EscapeAscii`][slice_escape_ascii] - [`<[u8]>::escape_ascii`][slice_u8_escape_ascii] - [`u8::escape_ascii`][u8_escape_ascii] - [`Vec::spare_capacity_mut`][vec_spare_capacity_mut] - [`MaybeUninit::assume_init_drop`][assume_init_drop] - [`MaybeUninit::assume_init_read`][assume_init_read] - [`i8::abs_diff`][i8_abs_diff] - [`i16::abs_diff`][i16_abs_diff] - [`i32::abs_diff`][i32_abs_diff] - [`i64::abs_diff`][i64_abs_diff] - [`i128::abs_diff`][i128_abs_diff] - [`isize::abs_diff`][isize_abs_diff] - [`u8::abs_diff`][u8_abs_diff] - [`u16::abs_diff`][u16_abs_diff] - [`u32::abs_diff`][u32_abs_diff] - [`u64::abs_diff`][u64_abs_diff] - [`u128::abs_diff`][u128_abs_diff] - [`usize::abs_diff`][usize_abs_diff] - [`Display for io::ErrorKind`][display_error_kind] - [`From<u8> for ExitCode`][from_u8_exit_code] - [`Not for !` (the "never" type)][not_never] - [_Op_`Assign<$t> for Wrapping<$t>`][wrapping_assign_ops] - [`arch::is_aarch64_feature_detected!`][is_aarch64_feature_detected] Cargo ----- - [Port cargo from `toml-rs` to `toml_edit`][cargo/10086] - [Stabilize `-Ztimings` as `--timings`][cargo/10245] - [Stabilize namespaced and weak dependency features.][cargo/10269] - [Accept more `cargo:rustc-link-arg-*` types from build script output.][cargo/10274] - [cargo-new should not add ignore rule on Cargo.lock inside subdirs][cargo/10379] Misc ---- - [Ship docs on Tier 2 platforms by reusing the closest Tier 1 platform docs][92800] - [Drop rustc-docs from complete profile][93742] - [bootstrap: tidy up flag handling for llvm build][93918] Compatibility Notes ------------------- - [Remove compiler-rt linking hack on Android][83822] - [Mitigations for platforms with non-monotonic clocks have been removed from `Instant::now`][89926]. On platforms that don't provide monotonic clocks, an instant is not guaranteed to be greater than an earlier instant anymore. - [`Instant::{duration_since, elapsed, sub}` do not panic anymore on underflow, saturating to `0` instead][89926]. In the real world the panic happened mostly on platforms with buggy monotonic clock implementations rather than catching programming errors like reversing the start and end times. Such programming errors will now results in `0` rather than a panic. - In a future release we're planning to increase the baseline requirements for the Linux kernel to version 3.2, and for glibc to version 2.17. We'd love your feedback in [PR #95026][95026]. Internal Changes ---------------- These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of rustc and related tools. - [Switch all libraries to the 2021 edition][92068] [83822]: rust-lang/rust#83822 [86374]: rust-lang/rust#86374 [87487]: rust-lang/rust#87487 [89621]: rust-lang/rust#89621 [89926]: rust-lang/rust#89926 [90132]: rust-lang/rust#90132 [90247]: rust-lang/rust#90247 [91606]: rust-lang/rust#91606 [92068]: rust-lang/rust#92068 [92300]: rust-lang/rust#92300 [92357]: rust-lang/rust#92357 [92383]: rust-lang/rust#92383 [92630]: rust-lang/rust#92630 [92670]: rust-lang/rust#92670 [92800]: rust-lang/rust#92800 [92933]: rust-lang/rust#92933 [93566]: rust-lang/rust#93566 [93577]: rust-lang/rust#93577 [93658]: rust-lang/rust#93658 [93742]: rust-lang/rust#93742 [93824]: rust-lang/rust#93824 [93918]: rust-lang/rust#93918 [95026]: rust-lang/rust#95026 [cargo/10086]: rust-lang/cargo#10086 [cargo/10245]: rust-lang/cargo#10245 [cargo/10269]: rust-lang/cargo#10269 [cargo/10274]: rust-lang/cargo#10274 [cargo/10379]: rust-lang/cargo#10379 [arc_new_cyclic]: https://doc.rust-lang.org/stable/std/sync/struct.Arc.html#method.new_cyclic [rc_new_cyclic]: https://doc.rust-lang.org/stable/std/rc/struct.Rc.html#method.new_cyclic [slice_escape_ascii]: https://doc.rust-lang.org/stable/std/slice/struct.EscapeAscii.html [slice_u8_escape_ascii]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.escape_ascii [u8_escape_ascii]: https://doc.rust-lang.org/stable/std/primitive.u8.html#method.escape_ascii [vec_spare_capacity_mut]: https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.spare_capacity_mut [assume_init_drop]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.assume_init_drop [assume_init_read]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.assume_init_read [i8_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i8.html#method.abs_diff [i16_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i16.html#method.abs_diff [i32_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i32.html#method.abs_diff [i64_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i64.html#method.abs_diff [i128_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i128.html#method.abs_diff [isize_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.isize.html#method.abs_diff [u8_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u8.html#method.abs_diff [u16_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u16.html#method.abs_diff [u32_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u32.html#method.abs_diff [u64_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u64.html#method.abs_diff [u128_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u128.html#method.abs_diff [usize_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.usize.html#method.abs_diff [display_error_kind]: https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#impl-Display [from_u8_exit_code]: https://doc.rust-lang.org/stable/std/process/struct.ExitCode.html#impl-From%3Cu8%3E [not_never]: https://doc.rust-lang.org/stable/std/primitive.never.html#impl-Not [wrapping_assign_ops]: https://doc.rust-lang.org/stable/std/num/struct.Wrapping.html#trait-implementations [is_aarch64_feature_detected]: https://doc.rust-lang.org/stable/std/arch/macro.is_aarch64_feature_detected.html

Pkgsrc changes: * Bump available bootstraps to 1.59.0. * Adjust line number in patches which had non-zero offsets. Upstream changes: Version 1.60.0 (2022-04-07) =========================== Language -------- - [Stabilize `#[cfg(panic = "...")]` for either `"unwind"` or `"abort"`.] [93658] - [Stabilize `#[cfg(target_has_atomic = "...")]` for each integer size and `"ptr"`.][93824] Compiler -------- - [Enable combining `+crt-static` and `relocation-model=pic` on `x86_64-unknown-linux-gnu`][86374] - [Fixes wrong `unreachable_pub` lints on nested and glob public reexport][87487] - [Stabilize `-Z instrument-coverage` as `-C instrument-coverage`][90132] - [Stabilize `-Z print-link-args` as `--print link-args`][91606] - [Add new Tier 3 target `mips64-openwrt-linux-musl`\*][92300] - [Add new Tier 3 target `armv7-unknown-linux-uclibceabi` (softfloat)\*][92383] - [Fix invalid removal of newlines from doc comments][92357] - [Add kernel target for RustyHermit][92670] - [Deny mixing bin crate type with lib crate types][92933] - [Make rustc use `RUST_BACKTRACE=full` by default][93566] - [Upgrade to LLVM 14][93577] \* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Guarantee call order for `sort_by_cached_key`][89621] - [Improve `Duration::try_from_secs_f32`/`f64` accuracy by directly processing exponent and mantissa][90247] - [Make `Instant::{duration_since, elapsed, sub}` saturating][89926] - [Remove non-monotonic clocks workarounds in `Instant::now`][89926] - [Make `BuildHasherDefault`, `iter::Empty` and `future::Pending` covariant][92630] Stabilized APIs --------------- - [`Arc::new_cyclic`][arc_new_cyclic] - [`Rc::new_cyclic`][rc_new_cyclic] - [`slice::EscapeAscii`][slice_escape_ascii] - [`<[u8]>::escape_ascii`][slice_u8_escape_ascii] - [`u8::escape_ascii`][u8_escape_ascii] - [`Vec::spare_capacity_mut`][vec_spare_capacity_mut] - [`MaybeUninit::assume_init_drop`][assume_init_drop] - [`MaybeUninit::assume_init_read`][assume_init_read] - [`i8::abs_diff`][i8_abs_diff] - [`i16::abs_diff`][i16_abs_diff] - [`i32::abs_diff`][i32_abs_diff] - [`i64::abs_diff`][i64_abs_diff] - [`i128::abs_diff`][i128_abs_diff] - [`isize::abs_diff`][isize_abs_diff] - [`u8::abs_diff`][u8_abs_diff] - [`u16::abs_diff`][u16_abs_diff] - [`u32::abs_diff`][u32_abs_diff] - [`u64::abs_diff`][u64_abs_diff] - [`u128::abs_diff`][u128_abs_diff] - [`usize::abs_diff`][usize_abs_diff] - [`Display for io::ErrorKind`][display_error_kind] - [`From<u8> for ExitCode`][from_u8_exit_code] - [`Not for !` (the "never" type)][not_never] - [_Op_`Assign<$t> for Wrapping<$t>`][wrapping_assign_ops] - [`arch::is_aarch64_feature_detected!`][is_aarch64_feature_detected] Cargo ----- - [Port cargo from `toml-rs` to `toml_edit`][cargo/10086] - [Stabilize `-Ztimings` as `--timings`][cargo/10245] - [Stabilize namespaced and weak dependency features.][cargo/10269] - [Accept more `cargo:rustc-link-arg-*` types from build script output.][cargo/10274] - [cargo-new should not add ignore rule on Cargo.lock inside subdirs][cargo/10379] Misc ---- - [Ship docs on Tier 2 platforms by reusing the closest Tier 1 platform docs][92800] - [Drop rustc-docs from complete profile][93742] - [bootstrap: tidy up flag handling for llvm build][93918] Compatibility Notes ------------------- - [Remove compiler-rt linking hack on Android][83822] - [Mitigations for platforms with non-monotonic clocks have been removed from `Instant::now`][89926]. On platforms that don't provide monotonic clocks, an instant is not guaranteed to be greater than an earlier instant anymore. - [`Instant::{duration_since, elapsed, sub}` do not panic anymore on underflow, saturating to `0` instead][89926]. In the real world the panic happened mostly on platforms with buggy monotonic clock implementations rather than catching programming errors like reversing the start and end times. Such programming errors will now results in `0` rather than a panic. - In a future release we're planning to increase the baseline requirements for the Linux kernel to version 3.2, and for glibc to version 2.17. We'd love your feedback in [PR #95026][95026]. Internal Changes ---------------- These changes provide no direct user facing benefits, but represent significant improvements to the internals and overall performance of rustc and related tools. - [Switch all libraries to the 2021 edition][92068] [83822]: rust-lang/rust#83822 [86374]: rust-lang/rust#86374 [87487]: rust-lang/rust#87487 [89621]: rust-lang/rust#89621 [89926]: rust-lang/rust#89926 [90132]: rust-lang/rust#90132 [90247]: rust-lang/rust#90247 [91606]: rust-lang/rust#91606 [92068]: rust-lang/rust#92068 [92300]: rust-lang/rust#92300 [92357]: rust-lang/rust#92357 [92383]: rust-lang/rust#92383 [92630]: rust-lang/rust#92630 [92670]: rust-lang/rust#92670 [92800]: rust-lang/rust#92800 [92933]: rust-lang/rust#92933 [93566]: rust-lang/rust#93566 [93577]: rust-lang/rust#93577 [93658]: rust-lang/rust#93658 [93742]: rust-lang/rust#93742 [93824]: rust-lang/rust#93824 [93918]: rust-lang/rust#93918 [95026]: rust-lang/rust#95026 [cargo/10086]: rust-lang/cargo#10086 [cargo/10245]: rust-lang/cargo#10245 [cargo/10269]: rust-lang/cargo#10269 [cargo/10274]: rust-lang/cargo#10274 [cargo/10379]: rust-lang/cargo#10379 [arc_new_cyclic]: https://doc.rust-lang.org/stable/std/sync/struct.Arc.html#method.new_cyclic [rc_new_cyclic]: https://doc.rust-lang.org/stable/std/rc/struct.Rc.html#method.new_cyclic [slice_escape_ascii]: https://doc.rust-lang.org/stable/std/slice/struct.EscapeAscii.html [slice_u8_escape_ascii]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.escape_ascii [u8_escape_ascii]: https://doc.rust-lang.org/stable/std/primitive.u8.html#method.escape_ascii [vec_spare_capacity_mut]: https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.spare_capacity_mut [assume_init_drop]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.assume_init_drop [assume_init_read]: https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.assume_init_read [i8_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i8.html#method.abs_diff [i16_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i16.html#method.abs_diff [i32_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i32.html#method.abs_diff [i64_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i64.html#method.abs_diff [i128_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.i128.html#method.abs_diff [isize_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.isize.html#method.abs_diff [u8_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u8.html#method.abs_diff [u16_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u16.html#method.abs_diff [u32_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u32.html#method.abs_diff [u64_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u64.html#method.abs_diff [u128_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.u128.html#method.abs_diff [usize_abs_diff]: https://doc.rust-lang.org/stable/std/primitive.usize.html#method.abs_diff [display_error_kind]: https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#impl-Display [from_u8_exit_code]: https://doc.rust-lang.org/stable/std/process/struct.ExitCode.html#impl-From%3Cu8%3E [not_never]: https://doc.rust-lang.org/stable/std/primitive.never.html#impl-Not [wrapping_assign_ops]: https://doc.rust-lang.org/stable/std/num/struct.Wrapping.html#trait-implementations [is_aarch64_feature_detected]: https://doc.rust-lang.org/stable/std/arch/macro.is_aarch64_feature_detected.html

rust-highfive assigned Eh2406 Jan 6, 2022

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Tracking Issue for weak dependency features #8832

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Tracking issue for namespaced-features #5565

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Stabilize namespaced and weak dependency features.

43a063c

ehuss force-pushed the stabilized-new-features branch from 0f5b582 to 43a063c Compare January 6, 2022 23:57

tiby312 mentioned this pull request Jan 9, 2022

make dots api optional tiby312/shogo#3

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rfcbot added disposition-merge FCP with intent to merge final-comment-period FCP — a period for last comments before action is taken and removed proposed-final-comment-period An FCP proposal has started, but not yet signed off. labels Jan 11, 2022

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bors merged commit e77c071 into rust-lang:master Jan 12, 2022

This was referenced Jan 12, 2022

Make cargo metadata --no-deps print all path deps (including other workspaces) #9024

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Implement "artifact dependencies" (RFC-3028) #9992

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Registry functions return Poll to enable parallel fetching of index data #10064

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msdrigg mentioned this pull request Jan 15, 2022

Split runtime and tls features launchbadge/sqlx#1630

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Craig-Macomber mentioned this pull request Jan 18, 2022

remove libc from default features rust-lang/flate2-rs#290

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ehuss mentioned this pull request Jan 19, 2022

Update cargo rust-lang/rust#93063

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Handling of optional dependencies changed, on nightly-2022-01-20 or later taiki-e/cargo-hack#145

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Replace embedded-time with fugit #54 FactbirdHQ/ublox-cellular-rs#57

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ecton mentioned this pull request Feb 6, 2022

Namespace feature flags khonsulabs/bonsaidb#178

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taiki-e mentioned this pull request Feb 6, 2022

Support namespaced and weak dependency features taiki-e/cargo-hack#147

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ehuss added this to the 1.60.0 milestone Feb 14, 2022

ehuss added a commit to ehuss/cargo_metadata that referenced this pull request Feb 15, 2022

Fix features table check as of 1.60.

083947e

As part of namespaced features, optional dependencies now appear as a feature in the features table: rust-lang/cargo#10269

ehuss mentioned this pull request Feb 15, 2022

Fix tests due to changes since 1.60 oli-obk/cargo_metadata#173

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ehuss added a commit to ehuss/cargo_metadata that referenced this pull request Feb 15, 2022

Fix features table check as of 1.60.

4c85f5a

As part of namespaced features, optional dependencies now appear as a feature in the features table: rust-lang/cargo#10269

pablosichert mentioned this pull request Feb 22, 2022

chore(vrl): Reduce VRL core such that it doesn't have any other dependencies to VRL vectordotdev/vector#11492

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ehuss mentioned this pull request Mar 10, 2022

Release notes for 1.60.0 rust-lang/rust#94817

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KmolYuan mentioned this pull request Apr 17, 2022

Support namespaced-features & weak-dependency-features in Cargo.toml intellij-rust/intellij-rust#8756

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jonhoo mentioned this pull request May 20, 2022

Update to 1.61.0's cargo dhovart/cargo-local-registry#170

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Rename use_serde feature? iliekturtles/uom#216

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Optionally Implement Zeroize on exported types BLAKE3-team/BLAKE3#309

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Verify file signatures jaemk/self_update#114

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Stabilize namespaced and weak dependency features. #10269

Stabilize namespaced and weak dependency features. #10269

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Stabilize namespaced and weak dependency features. #10269

Stabilize namespaced and weak dependency features. #10269

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