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Rollup of 7 pull requests #95838

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@rustbot modify labels: rollup

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fmease and others added 14 commits April 7, 2022 20:40
This is a repeat for Rc of e0e64a8,
which cleaned up the same thing for Arc.
This saves an instruction compared to the previous approach, which
was to unset the fifth bit with bitwise OR.
…Gomez

Hide cross-crate `#[doc(hidden)]` associated items in trait impls

Fixes rust-lang#95717.

r? ``@GuillaumeGomez``
This is the bug I ran into in rust-lang#95316.

``@rustbot`` label T-rustdoc A-cross-crate-reexports
…=oli-obk

interpret: err instead of ICE on size mismatches in to_bits_or_ptr_internal

We did this a while ago already for `to_i32()` and friends, but missed this one. That became quite annoying when I was debugging an ICE caused by `read_pointer` in a Miri shim where the code was passing an argument at the wrong type.

Having `scalar_to_ptr` be fallible is consistent with all the other `Scalar::to_*` methods being fallible. I added `unwrap` only in code outside the interpreter, which is no worse off than before now in terms of panics.

r? ```@oli-obk```
fix unused constant warning on some Windows targets

When none of those `cfg_if!` apply (and on Miri), the constant remains unused.
Left overs of rust-lang#95761

These are just nits. Feel free to close this PR if all modifications are not worth merging.

* `#![feature(decl_macro)]` is not needed anymore in `rustc_expand`
* `tuple_impls` does not require `$Tuple:ident`. I guess it is there to enhance readability?

r? `@petrochenkov`
…-remove-unnecessary-nesting-in-rustc-borrowck, r=davidtwco

Use `format-args-capture` and remove unnecessary nested blocks
hide another #[allow] directive from a docs example

This is a repeat for Rc of e0e64a8,
which cleaned up the same thing for Arc.
Use bitwise XOR in to_ascii_uppercase

This saves an instruction compared to the previous approach, which
was to unset the fifth bit with bitwise OR.

Comparison of generated assembly on x86: https://godbolt.org/z/GdfvdGs39

This can also affect autovectorization, saving SIMD instructions as well: https://godbolt.org/z/cnPcz75T9

Not sure if `u8::to_ascii_lowercase` should also be changed, since using bitwise OR for that function does not require an extra bitwise negate since the code is setting a bit rather than unsetting a bit. `char::to_ascii_uppercase` already uses XOR, so no change seems to be required there.
@rustbot rustbot added T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. rollup A PR which is a rollup labels Apr 9, 2022
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@bors r+ rollup=never p=7

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bors commented Apr 9, 2022

📌 Commit e53ba18 has been approved by matthiaskrgr

@bors bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Apr 9, 2022
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bors commented Apr 9, 2022

⌛ Testing commit e53ba18 with merge eac79e078b528127daf51663e37fd2235e1dba87...

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bors commented Apr 9, 2022

💔 Test failed - checks-actions

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Apr 9, 2022
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The job x86_64-msvc-1 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)
---- [ui] src/test\ui-fulldeps\stdio-from.rs stdout ----

error: test run failed!
status: exit code: 101
Some tests failed in compiletest suite=ui-fulldeps mode=ui host=x86_64-pc-windows-msvc target=x86_64-pc-windows-msvc
command: PATH="D:\a\rust\rust\build\x86_64-pc-windows-msvc\stage2\lib\rustlib\x86_64-pc-windows-msvc\lib;C:\Program Files (x86)\Windows Kits\10\bin\x64;C:\Program Files (x86)\Windows Kits\10\bin\10.0.22000.0\x64;C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.29.30133\bin\HostX64\x64;C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.29.30133\bin\HostX64\x64;D:\a\rust\rust\build\x86_64-pc-windows-msvc\stage0-bootstrap-tools\x86_64-pc-windows-msvc\release\deps;D:\a\rust\rust\build\x86_64-pc-windows-msvc\stage0\bin;D:\a\rust\rust\ninja;D:\a\rust\rust\msys2\mingw64\bin;C:\hostedtoolcache\windows\Python\3.10.4\x64\Scripts;C:\hostedtoolcache\windows\Python\3.10.4\x64;C:\msys64\usr\bin;D:\a\rust\rust\sccache;C:\Program Files\MongoDB\Server\5.0\bin;C:\aliyun-cli;C:\vcpkg;C:\cf-cli;C:\Program Files (x86)\NSIS;C:\tools\zstd;C:\Program Files\Mercurial;C:\hostedtoolcache\windows\stack\2.7.5\x64;C:\cabal\bin;C:\ghcup\bin;C:\tools\ghc-9.2.2\bin;C:\Program Files\dotnet;C:\mysql\bin;C:\Program Files\R\R-4.1.3\bin\x64;C:\SeleniumWebDrivers\GeckoDriver;C:\Program Files (x86)\sbt\bin;C:\Program Files (x86)\GitHub CLI;C:\Program Files\Git\bin;C:\Program Files (x86)\pipx_bin;C:\hostedtoolcache\windows\go\1.15.15\x64\bin;C:\hostedtoolcache\windows\Python\3.7.9\x64\Scripts;C:\hostedtoolcache\windows\Python\3.7.9\x64;C:\hostedtoolcache\windows\Ruby\2.5.9\x64\bin;C:\tools\kotlinc\bin;C:\hostedtoolcache\windows\Java_Temurin-Hotspot_jdk\8.0.322-6\x64\bin;C:\npm\prefix;C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\wbin;C:\ProgramData\kind;C:\Program Files\Eclipse Foundation\jdk-8.0.302.8-hotspot\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0;C:\Windows\System32\OpenSSH;C:\ProgramData\Chocolatey\bin;C:\Program Files\Docker;C:\Program Files\PowerShell\7;C:\Program Files\Microsoft\Web Platform Installer;C:\Program Files\dotnet;C:\Program Files\Microsoft SQL Server\130\Tools\Binn;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn;C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit;C:\Program Files (x86)\Microsoft SQL Server\110\DTS\Binn;C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn;C:\Program Files (x86)\Microsoft SQL Server\130\DTS\Binn;C:\Program Files (x86)\Microsoft SQL Server\140\DTS\Binn;C:\Program Files (x86)\Microsoft SQL Server\150\DTS\Binn;C:\Program Files\nodejs;C:\Program Files\OpenSSL\bin;C:\Strawberry\c\bin;C:\Strawberry\perl\site\bin;C:\Strawberry\perl\bin;C:\ProgramData\chocolatey\lib\pulumi\tools\Pulumi\bin;C:\Program Files\TortoiseSVN\bin;C:\Program Files\CMake\bin;C:\ProgramData\chocolatey\lib\maven\apache-maven-3.8.5\bin;C:\Program Files\Microsoft Service Fabric\bin\Fabric\Fabric.Code;C:\Program Files\Microsoft SDKs\Service Fabric\Tools\ServiceFabricLocalClusterManager;C:\Program Files\Git\cmd;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Program Files\GitHub CLI;C:\tools\php;C:\Program Files (x86)\sbt\bin;C:\SeleniumWebDrivers\ChromeDriver;C:\SeleniumWebDrivers\EdgeDriver;C:\Program Files\Amazon\AWSCLIV2;C:\Program Files\Amazon\SessionManagerPlugin\bin;C:\Program Files\Amazon\AWSSAMCLI\bin;C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\bin;C:\Program Files (x86)\Microsoft BizTalk Server;C:\Program Files\LLVM\bin;C:\Users\runneradmin\.dotnet\tools;C:\Users\runneradmin\.cargo\bin;C:\Users\runneradmin\AppData\Local\Microsoft\WindowsApps" "D:\\a\\rust\\rust\\build\\x86_64-pc-windows-msvc\\test\\ui-fulldeps\\stdio-from\\a.exe"
stdout: none
--- stderr -------------------------------
I/O error: operation failed to complete synchronously
thread 'main' panicked at 'assertion failed: child2.wait()?.success()', D:\a\rust\rust\src/test\ui-fulldeps\stdio-from.rs:50:5
------------------------------------------




failures:
    [ui] src/test\ui-fulldeps\stdio-from.rs

test result: FAILED. 65 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out; finished in 26.24s

Build completed unsuccessfully in 0:36:30
make: *** [Makefile:72: ci-subset-1] Error 1

@matthiaskrgr matthiaskrgr deleted the rollup-cxm5u7x branch July 30, 2022 10:32
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