Rollup of 11 pull requests

[Mark-Simulacrum]

Successful merges:

• Implement PartialEq between &str and OsString #51178 (Implement PartialEq between &str and OsString)
• hygiene: Implement transparent marks and use them for call-site hygiene in proc-macros #51762 (hygiene: Implement transparent marks and use them for call-site hygiene in proc-macros)
• Do not allow LLVM to increase a TLS's alignment on macOS. #51828 (Do not allow LLVM to increase a TLS's alignment on macOS.)
• Fix some doc links #51853 (Fix some doc links)
• Point to lifetime spans on lifetime errors #51862 (Point to lifetime spans on lifetime errors)
• Update liblibc #51864 (Update liblibc)
• Require type is sized in wfcheck.check_item_type for externed DSTs, c… #51867 (Require type is sized in wfcheck.check_item_type for externed DSTs, c…)
• Suggest correct comparison against negative literal #51883 (Suggest correct comparison against negative literal)
• Fix inconsequential typo in GlobalAlloc doc example #51890 (Fix inconsequential typo in GlobalAlloc doc example)
• use literal span for concrete type suggestion #51920 (use literal span for concrete type suggestion)
• improve the error message when #[panic_implementation] is missing #51921 (improve the error message when #[panic_implementation] is missing)

Failed merges:

r? @ghost

[Mark-Simulacrum]

@bors r+ p=10

[bors]

📌 Commit b7bd4aa has been approved by Mark-Simulacrum

[bors]

⌛ Testing commit b7bd4aa with merge 5deba6bf40808d6b0fbb1d81095134b7a48002aa...

[bors]

💔 Test failed - status-appveyor

[kennytm]

Failing test for cargo. I suspect #51867.

---- doc::doc_target stdout ----
running `C:\projects\rust\build\x86_64-pc-windows-msvc\stage2-tools\x86_64-pc-windows-msvc\release\cargo.exe doc --target arm-unknown-linux-gnueabihf --verbose`
thread 'doc::doc_target' panicked at '
Expected: execs
    but: exited with exit code: 101
--- stdout
--- stderr
 Documenting foo v0.0.1 (file:///C:/projects/rust/build/x86_64-pc-windows-msvc/stage2-tools/x86_64-pc-windows-msvc/cit/t484/foo)
     Running `rustdoc --crate-name foo src\lib.rs --target arm-unknown-linux-gnueabihf -o C:\projects\rust\build\x86_64-pc-windows-msvc\stage2-tools\x86_64-pc-windows-msvc\cit\t484\foo\target\arm-unknown-linux-gnueabihf\doc -L dependency=C:\projects\rust\build\x86_64-pc-windows-msvc\stage2-tools\x86_64-pc-windows-msvc\cit\t484\foo\target\arm-unknown-linux-gnueabihf\debug\deps -L dependency=C:\projects\rust\build\x86_64-pc-windows-msvc\stage2-tools\x86_64-pc-windows-msvc\cit\t484\foo\target\debug\deps`
error: requires `sized` lang_item
error: Could not document `foo`.
Caused by:
  process didn't exit successfully: `rustdoc --crate-name foo src\lib.rs --target arm-unknown-linux-gnueabihf -o C:\projects\rust\build\x86_64-pc-windows-msvc\stage2-tools\x86_64-pc-windows-msvc\cit\t484\foo\target\arm-unknown-linux-gnueabihf\doc -L dependency=C:\projects\rust\build\x86_64-pc-windows-msvc\stage2-tools\x86_64-pc-windows-msvc\cit\t484\foo\target\arm-unknown-linux-gnueabihf\debug\deps -L dependency=C:\projects\rust\build\x86_64-pc-windows-msvc\stage2-tools\x86_64-pc-windows-msvc\cit\t484\foo\target\debug\deps` (exit code: 101)
', tools\cargo\tests\testsuite\hamcrest.rs:13:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.
failures:
    doc::doc_target

The test in question:

https://github.com/rust-lang/cargo/blob/94f7058a483b05ad742da5efb66dd1c2d4b8619c/tests/testsuite/doc.rs#L762-L802

[bors]

☔ The latest upstream changes (presumably #51828) made this pull request unmergeable. Please resolve the merge conflicts.