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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

Mismatch between sync and async drop gen? A-async-await Area: Async & Await A-const-eval Area: Constant evaluation, covers all const contexts (static, const fn, ...) A-monomorphization Area: Monomorphization C-bug Category: This is a bug. needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#140600 opened May 2, 2025 by lovely-error
3
async-drop-initial.rs test failing on Fuchsia A-async-await Area: Async & Await A-testsuite Area: The testsuite used to check the correctness of rustc C-bug Category: This is a bug. F-async_drop `#![feature(async_drop)]` O-fuchsia Operating system: Fuchsia T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#140493 opened Apr 30, 2025 by erickt
2
ICE：called Option::unwrap() on a None value A-async-await Area: Async & Await A-const-prop Area: Constant propagation C-bug Category: This is a bug. F-async_drop `#![feature(async_drop)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-incomplete-features This issue requires the use of incomplete features. S-has-bisection Status: a bisection has been found for this issue 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.
#140469 opened Apr 29, 2025 by sososopy
1
Poor suggestion for async || {} in place of async {} A-async-await Area: Async & Await A-diagnostics Area: Messages for errors, warnings, and lints T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#140265 opened Apr 24, 2025 by meithecatte
1
[bug] When I Use tauri-plugin-http and reqwest either, I got a panic A-async-await Area: Async & Await A-auto-traits Area: auto traits (e.g., `auto trait Send {}`) A-coercions Area: implicit and explicit `expr as Type` coercions A-dyn-trait Area: trait objects, vtable layout 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-has-bisection Status: a bisection has been found for this issue 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. T-types Relevant to the types team, which will review and decide on the PR/issue.
#138274 opened Mar 9, 2025 by Wan9xy
@compiler-errors
8
Migrating from Fn -> impl Future to AsyncFn breaks Send A-async-await Area: Async & Await C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137698 opened Feb 27, 2025 by smessmer
2
"implementation is not general enough" even if only 'static is used. A-async-await Area: Async & Await A-borrow-checker Area: The borrow checker C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#136726 opened Feb 8, 2025 by tisonkun
Async function calls not optimized out A-async-await Area: Async & Await C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#135468 opened Jan 14, 2025 by swenson
1
3
Missing Send on "recursive" Future A-async-await Area: Async & Await 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.
#135062 opened Jan 3, 2025 by CheaterCodes
4
rustc doesn't infer that the future of a recursive async fn is Send. A-async-await Area: Async & Await A-trait-system Area: Trait system C-bug Category: This is a bug. T-types Relevant to the types team, which will review and decide on the PR/issue.
#134101 opened Dec 9, 2024 by jimblandy
2
Tracking issue for release notes of #129347: #[inline(never)] does not work for async functions A-async-await Area: Async & Await A-codegen Area: Code generation A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. relnotes Marks issues that should be documented in the release notes of the next release. relnotes-tracking-issue Marks issues tracking what text to put in release notes. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#132573 opened Nov 3, 2024 by rustbot
3 tasks
ICE: Building async destructor constructor shim is not yet implemented for type: Coroutine -Zvalidate-mir Unstable option: MIR validation A-async-await Area: Async & Await A-coroutines Area: Coroutines A-destructors Area: Destructors (`Drop`, …) C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132103 opened Oct 24, 2024 by matthiaskrgr
1
Repeated calls to the same async fn can cause stack overflow A-async-await Area: Async & Await C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132050 opened Oct 23, 2024 by xmh0511
5
Returning bare trait from an async function gives subpar suggestion A-async-await Area: Async & Await A-diagnostics Area: Messages for errors, warnings, and lints D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#131661 opened Oct 13, 2024 by GrigorenkoPV
1
@hirschenberger
2
Adding explicit lifetimes causes compilation error A-async-await Area: Async & Await A-lifetimes Area: Lifetimes / regions C-discussion Category: Discussion or questions that doesn't represent real issues.
#131336 opened Oct 6, 2024 by varqox
3
Outlives requirements are not implied in the return type of async fn, and generally for RPIT A-async-await Area: Async & Await A-impl-trait Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch. A-implied-bounds Area: Implied bounds / inferred outlives-bounds AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. T-types Relevant to the types team, which will review and decide on the PR/issue.
#130935 opened Sep 27, 2024 by jackh726
2
Send bound of trait object make unexpected async block is not general enough error A-async-await Area: Async & Await A-diagnostics Area: Messages for errors, warnings, and lints A-trait-system Area: Trait system C-bug Category: This is a bug.
#130596 opened Sep 20, 2024 by ethe
1
Bogus "implementation of <whatever trait you want> is not general enough" with RPITIT + async A-async-await Area: Async & Await A-impl-trait Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch. A-trait-system Area: Trait system C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130113 opened Sep 8, 2024 by jplatte
1
async code fails to compile with -Znext-solver 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. 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. T-types Relevant to the types team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#129865 opened Sep 1, 2024 by 0xdeafbeef
@compiler-errors
5
#[inline(never)] does not work for async functions A-async-await Area: Async & Await A-codegen Area: Code generation A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. disposition-merge This issue / PR is in PFCP or FCP with a disposition to merge it. finished-final-comment-period The final comment period is finished for this PR / Issue. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue T-lang Relevant to the language team, which will review and decide on the PR/issue.
#129347 opened Aug 21, 2024 by michaelwoerister
16
Misleading help suggests Sync bound when shareable reference is passed across or into await 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. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#129105 opened Aug 14, 2024 by mzabaluev
5
rustc fails to prove Sendness for an async block where a !Send value is dropped before an .await point 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-coroutines `#![feature(coroutines)]`
#128095 opened Jul 23, 2024 by frank-king
1
@compiler-errors
7
Async code causes error "implementation of FnOnce is not general enough" when demanding an impl Send 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. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126551 opened Jun 16, 2024 by theemathas
1
Extremely un-informative error when a future that capture the environment is used as Send 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. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126550 opened Jun 16, 2024 by Ciel-MC
2
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
ProTip! Exclude everything labeled bug with -label:bug.