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Pull requests list

Rollup of 3 pull requests F-explicit_tail_calls `#![feature(explicit_tail_calls)]` rollup A PR which is a rollup S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library 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. T-rustdoc-frontend Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#155029 opened Apr 9, 2026 by jhpratt Loading…
3
tests: add whitespace tests for vertical tab behavior S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#155028 opened Apr 9, 2026 by Brace1000 Loading…
@dingxiangfei2009
4
Rename some more of our internal #[rustc_*] TEST attributes A-attributes Area: Attributes (`#[…]`, `#![…]`) A-rustc-dev-guide Area: rustc-dev-guide S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#155027 opened Apr 9, 2026 by fmease Loading…
@JonathanBrouwer
2
Move maybe_loop_headers out of rustc_middle. S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#155026 opened Apr 9, 2026 by nnethercote Loading…
@dianqk
6
Use special DefIds for aliases S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-types Relevant to the types team, which will review and decide on the PR/issue.
#155025 opened Apr 9, 2026 by ChayimFriedman2 Loading…
@jackh726
Move expressions (move($expr)) S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#155023 opened Apr 9, 2026 by TaKO8Ki • Draft
Remove redundant drop terminators ahead of mir_coroutine_witnesses perf-regression Performance regression. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. S-waiting-on-perf Status: Waiting on a perf run to be completed. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#155022 opened Apr 9, 2026 by tmandry • Draft
3 of 7 tasks
1
12
[IGNORE] Abolish trait object lifetime defaults in bodies needs-fcp This change is insta-stable, or significant enough to need a team FCP to proceed. rla-silenced Silences rust-log-analyzer postings to the PR it's added on. S-blocked Status: Blocked on something else such as an RFC or other implementation work. S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. S-waiting-on-perf Status: Waiting on a perf run to be completed. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#155020 opened Apr 9, 2026 by fmease • Draft
4
Simplify HashStable A-attributes Area: Attributes (`#[…]`, `#![…]`) A-meta Area: Issues & PRs about the rust-lang/rust repository itself F-autodiff `#![feature(autodiff)]` S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#155018 opened Apr 9, 2026 by nnethercote • Draft
4
constify (DoubleEnded)Iterator for RepeatN S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#155016 opened Apr 8, 2026 by Lars-Schumann Loading…
@scottmcm
2
Add tests for three fixed issues (an LLVM crash, an ICE and poor codegen) S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#155015 opened Apr 8, 2026 by jakubadamw Loading…
3
@Kivooeo
3
Hexagon: add scalar arch-version target features (v60-v79, audio) S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#155014 opened Apr 8, 2026 by androm3da Loading…
@mati865
2
Suggest the [const] Destruct bound for type parameters in const functions when missing S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#155013 opened Apr 8, 2026 by jakubadamw Loading…
1
@wesleywiser
3
Clarify ASCII whitespace docs in u8::is_ascii_whitespace S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#155012 opened Apr 8, 2026 by Brace1000 Loading…
@Mark-Simulacrum
3
stabilize feature(cfg_target_has_atomic_equal_alignment) S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#155006 opened Apr 8, 2026 by WaffleLapkin Loading…
@mati865
1
preseve SIMD element type information A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#155005 opened Apr 8, 2026 by folkertdev • Draft
2
update thin-vec A-attributes Area: Attributes (`#[…]`, `#![…]`) S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-clippy Relevant to the Clippy team. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-rust-analyzer Relevant to the rust-analyzer team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#155003 opened Apr 8, 2026 by malezjaa Loading…
@davidtwco
2
[beta] reverts A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-clippy Relevant to the Clippy team. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#154999 opened Apr 8, 2026 by cuviper Loading…
@davidtwco
4
compiletest: make some internals pub for use as a library A-compiletest Area: The compiletest test runner A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#154997 opened Apr 8, 2026 by akintewe Loading…
@jackh726
6
fix(stdio): Ignore WouldBlock errors to match C behavior S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#154996 opened Apr 8, 2026 by skyfireitdiy Loading…
@jhpratt
2
don't leak internal temporaries from dbg! beta-nominated Nominated for backporting to the compiler in the beta channel. S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#154994 opened Apr 8, 2026 by dianne Loading…
1
@Mark-Simulacrum
3
compiletest: pass -Zunstable-options for unpretty and no-codegen paths A-compiletest Area: The compiletest test runner A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#154993 opened Apr 8, 2026 by DeepeshWR Loading…
@clubby789
3
Error on projection of dyn noncompat type in old trait solver S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#154992 opened Apr 8, 2026 by spirali Loading…
1
@lcnr
Support creating default Vec within a custom allocator I-libs-api-nominated Nominated for discussion during a libs-api team meeting. S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#154990 opened Apr 8, 2026 by Nokel81 Loading…
@Mark-Simulacrum
4
Move Region from rustc_middle to rustc_type_ir S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. 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. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#154989 opened Apr 8, 2026 by Jamesbarford Loading…
@lcnr
4
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