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Issues: rust-lang/rust

Draft release notes for 1.87
#140133 opened Apr 21, 2025 by BoxyUwU
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Issues list

Coroutine/Future Send bounds are too restrictive when taking references to !Sync values A-coroutines Area: Coroutines C-bug Category: This is a bug. E-needs-investigation Call for partcipation: This issues needs some investigation to determine current status T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-lang Relevant to the language team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#132382 opened Oct 31, 2024 by ds84182
2
Overly conservative async capture analysis when values are borrowed I-async-nominated Nominated for discussion during an async working group meeting. WG-async Working group: Async & await
#129325 opened Aug 20, 2024 by nikomatsakis
1
4
Happens-before relationship between wake and poll A-docs Area: Documentation for any part of the project, including the compiler, standard library, and tools C-discussion Category: Discussion or questions that doesn't represent real issues. T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#128920 opened Aug 10, 2024 by Ddystopia
12
Tracking Issue for async drop codegen A-async-await Area: Async & Await AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-async_drop `#![feature(async_drop)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-lang Relevant to the language team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#126482 opened Jun 14, 2024 by zetanumbers
4 of 20 tasks
1
Strange error message when trying to call a function that takes a closure that returns a future A-async-await Area: Async & Await A-closures Area: Closures (`|…| { … }`) A-diagnostics Area: Messages for errors, warnings, and lints AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. fixed-by-async-closures Fixed by `#![feature(async_closure)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#123717 opened Apr 10, 2024 by tljubej-tbtl
4
Tracking Issue for context_ext A-async-await Area: Async & Await AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-context_ext `#![feature(context_ext)]` T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#123392 opened Apr 2, 2024 by jkarneges
1 of 3 tasks
5
Recursive async functions don't internally implement auto traits A-async-await Area: Async & Await A-auto-traits Area: auto traits (e.g., `auto trait Send {}`) A-trait-system Area: Trait system AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#123072 opened Mar 26, 2024 by drewtato
1
recursive async function using Box::new results in cycle error A-async-await Area: Async & Await A-diagnostics Area: Messages for errors, warnings, and lints AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. D-confusing Diagnostics: Confusing error or lint that should be reworked. I-cycle Issue: A query cycle occurred while none was expected T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#122332 opened Mar 11, 2024 by lcnr
@compiler-errors
1
Async callback argument causes nonsensical error message. A-async-await Area: Async & Await A-diagnostics Area: Messages for errors, warnings, and lints AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. D-confusing Diagnostics: Confusing error or lint that should be reworked. fixed-by-async-closures Fixed by `#![feature(async_closure)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await WG-diagnostics Working group: Diagnostics
#121093 opened Feb 14, 2024 by theemathas
3
never patterns: ! argument not detected as diverging on async fn A-async-await Area: Async & Await AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. F-never_patterns `#![feature(never_patterns)]` requires-incomplete-features This issue requires the use of incomplete features. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#120240 opened Jan 22, 2024 by Nadrieril
4
Clarification needed on what happens when Future::poll wakes an old waker A-async-await Area: Async & Await A-docs Area: Documentation for any part of the project, including the compiler, standard library, and tools AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. I-async-nominated Nominated for discussion during an async working group meeting. T-libs Relevant to the library team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#119698 opened Jan 7, 2024 by zopsicle
3
Rename AsyncIterator back to Stream, introduce an AFIT-based AsyncIterator trait I-async-nominated Nominated for discussion during an async working group meeting. S-waiting-on-team Status: Awaiting decision from the relevant subteam (see the T-<team> label). T-lang Relevant to the language team, which will review and decide on the PR/issue. WG-async Working group: Async & await WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#119550 opened Jan 3, 2024 by yoshuawuyts • Draft
@compiler-errors
43
ICE with "failed to resolve instance for <... as IntoFuture>::into_future: Ok(None)" (regression between 1.73 and 1.74) A-async-await Area: Async & Await A-auto-traits Area: auto traits (e.g., `auto trait Send {}`) AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ P-medium Medium priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#119095 opened Dec 18, 2023 by 42triangles
10
Tracking Issue for LocalWaker C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#118959 opened Dec 15, 2023 by tvallotton
1 of 4 tasks
29
Tracking Issue for for await loops B-experimental Blocker: In-tree experiment; RFC pending, not yet approved or unneeded (requires FCP to stabilize). B-unstable Blocker: Implemented in the nightly compiler and unstable. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-async_for_loop `#![feature(async_for_loop)]` T-lang Relevant to the language team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#118898 opened Dec 13, 2023 by eholk
5 tasks
1
Non-Send values that are assigned to a variable but not used across an await point incorrectly mark the entire Future as non-Send A-async-await Area: Async & Await AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-feature-request Category: A feature request, i.e: not implemented / a PR. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#116680 opened Oct 13, 2023 by wallefan
4
Slow compilation of async fn that creates a vector with many Strings created from string literals, even with no .await A-async-await Area: Async & Await AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. I-compiletime Issue: Problems and improvements with respect to compile times. P-medium Medium priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#115327 opened Aug 28, 2023 by shepmaster
6
.await does not perform autoref or autoderef A-async-await Area: Async & Await A-diagnostics Area: Messages for errors, warnings, and lints A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. T-lang Relevant to the language 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. WG-async Working group: Async & await
#111546 opened May 13, 2023 by Jules-Bertholet
1
13
Tracking issue for incorrect lifetime bound errors in async A-async-await Area: Async & Await A-coroutines Area: Coroutines AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. 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. WG-async Working group: Async & await
#110338 opened Apr 14, 2023 by tmandry
1 of 25 tasks
9
async block occupies twice the size of its captures (causing explosion in size). C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#108906 opened Mar 8, 2023 by nolanderc
6
type inference fails when using async_fn_in_trait A-async-await Area: Async & Await A-impl-trait Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch. A-inference Area: Type inference AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#108362 opened Feb 22, 2023 by LastExceed
@compiler-errors
6
#[inline(never)] does not work for async fn A-async-await Area: Async & Await AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-async Working group: Async & await
#106765 opened Jan 12, 2023 by quininer
5
async block with futures::stream::Buffered is not Send A-async-await Area: Async & Await AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. WG-async Working group: Async & await
#104382 opened Nov 13, 2022 by mikeyhew
10
Implementation of FnOnce is not general enough for Flatten iterator of futures outliving an .await point A-async-await Area: Async & Await A-lifetimes Area: Lifetimes / regions A-trait-system Area: Trait system AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. 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. WG-async Working group: Async & await
#98380 opened Jun 22, 2022 by Veetaha
2
Unexpected "the parameter type X may not live long enough" error in asynchronous functions A-async-await Area: Async & Await A-GATs Area: Generic associated types (GATs) A-lifetimes Area: Lifetimes / regions A-trait-system Area: Trait system AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. F-impl_trait_in_assoc_type `#![feature(impl_trait_in_assoc_type)]` 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. WG-async Working group: Async & await
#95719 opened Apr 6, 2022 by wvwwvwwv
4
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