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Issues: rust-lang/rust

Draft release notes for 1.86.0
#138795 opened Mar 21, 2025 by cuviper
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Issues list

chain() error output points to the wrong token 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.
#109062 opened Mar 12, 2023 by quomat
@compiler-errors
Add diagnostic hint when or-ing values which may be missing an equality comparison 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.
#128132 opened Jul 24, 2024 by illicitonion
1
@compiler-errors
Mismatched types for a conditional containing closures inside method call A-closures Area: Closures (`|…| { … }`) C-bug Category: This is a bug. T-types Relevant to the types team, which will review and decide on the PR/issue.
#127525 opened Jul 9, 2024 by marmac02
@compiler-errors
Work tracking issue for moving rustc_infer error reporting into rustc_trait_selection A-diagnostics Area: Messages for errors, warnings, and lints A-type-system Area: Type system C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC 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.
#127492 opened Jul 8, 2024 by compiler-errors
7 of 12 tasks
@compiler-errors
Assoc const equality doesn't work well with rustdoc C-bug Category: This is a bug. F-associated_const_equality `#![feature(associated_const_equality)]` T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#125092 opened May 13, 2024 by compiler-errors
@compiler-errors @fmease
Impl has "stricter" requirement that is implied by existing requirement A-implied-bounds Area: Implied bounds / inferred outlives-bounds A-trait-system Area: Trait system C-bug Category: This is a bug. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue T-types Relevant to the types team, which will review and decide on the PR/issue.
#134890 opened Dec 29, 2024 by LHolten
@compiler-errors
rustdoc: support RTN once its syntax is somewhat finalized C-bug Category: This is a bug. F-return_type_notation `#[feature(return_type_notation)]` P-low Low priority T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#123996 opened Apr 16, 2024 by fmease
@compiler-errors
Investigate getting rid of the AsyncFn* family of traits in favor of LendingFn* A-async-closures `async || {}` C-cleanup Category: PRs that clean code up or issues documenting cleanup. C-enhancement Category: An issue proposing an enhancement or a PR with one. T-types Relevant to the types team, which will review and decide on the PR/issue.
#120694 opened Feb 6, 2024 by compiler-errors
@compiler-errors
Wrong error message when omitting braces from closure with return type which returns tuple 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.
#138748 opened Mar 20, 2025 by schuelermine
1
@compiler-errors
False compile error on associated type bounds C-bug Category: This is a bug. F-associated_type_bounds `#![feature(associated_type_bounds)]` fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. T-types Relevant to the types team, which will review and decide on the PR/issue.
#125845 opened Jun 1, 2024 by taiheioki
@compiler-errors
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
E0277 Emitted Twice A-diagnostics Area: Messages for errors, warnings, and lints A-trait-system Area: Trait system D-verbose Diagnostics: Too much output caused by a single piece of incorrect code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#125685 opened May 28, 2024 by veera-sivarajan
@compiler-errors
1
Higher ranked trivial bounds are not checked A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-trait-system Area: Trait system C-enhancement Category: An issue proposing an enhancement or a PR with one. S-types-tracked Status: Being actively tracked by the types team 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.
#50935 opened May 21, 2018 by leoyvens
@compiler-errors
1
Implement Default for singleton function item types A-trait-system Area: Trait system C-feature-request Category: A feature request, i.e: not implemented / a PR. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#130884 opened Sep 26, 2024 by mweatherley
@compiler-errors
1
ICE with dyn* and method that takes self by value C-bug Category: This is a bug. F-dyn_star `#![feature(dyn_star)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-incomplete-features This issue requires the use of incomplete features. requires-nightly This issue requires a nightly compiler in some way. 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.
#119694 opened Jan 7, 2024 by lukas-code
@compiler-errors
1
hrtb + infer types break auto traits with return type notation A-auto-traits Area: auto traits (e.g., `auto trait Send {}`) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) C-bug Category: This is a bug. F-return_type_notation `#[feature(return_type_notation)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#109924 opened Apr 4, 2023 by compiler-errors
@compiler-errors
1
Lint overcapturing in impl Trait on 2024 edition A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#131943 opened Oct 19, 2024 by GoldsteinE
@compiler-errors
1
ICE: index out of bounds: the len is 12 but the index is 13 A-async-closures `async || {}` C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-nightly This issue requires a nightly compiler in some way. 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.
#134335 opened Dec 15, 2024 by matthiaskrgr
@compiler-errors
1
A "cannot infer type" compilation error appeared from 1.87.0-nightly (249cb84 2025-03-12) C-bug Category: This is a bug. I-prioritize Issue: Indicates that prioritization has been requested for this issue. needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. regression-untriaged Untriaged performance or correctness regression.
#138937 opened Mar 25, 2025 by albertog78
1
@compiler-errors
1
Error when implementing async method of another trait from another trait F-async_fn_in_trait Static async fn in traits fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. T-types Relevant to the types team, which will review and decide on the PR/issue.
#116984 opened Oct 20, 2023 by lohvht
@compiler-errors
2
Incorrect syntax when suggesting the use of Fn* traits as supertraits A-diagnostics Area: Messages for errors, warnings, and lints D-incorrect Diagnostics: A diagnostic that is giving misleading or incorrect information. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#118225 opened Nov 24, 2023 by xmh0511
1
@compiler-errors
2
ICE: !ty.is_copy_modulo_regions(tcx, param_env) 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.
#122259 opened Mar 9, 2024 by matthiaskrgr
@compiler-errors
2
ICE: X should not have been constrained via normalization C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126725 opened Jun 20, 2024 by matthiaskrgr
1
@compiler-errors
2
RPIT associated type lifetime bound is ignored A-associated-items Area: Associated items (types, constants & functions) A-impl-trait Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch. A-lifetimes Area: Lifetimes / regions C-bug Category: This is a bug. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue T-types Relevant to the types team, which will review and decide on the PR/issue.
#135006 opened Jan 1, 2025 by LHolten
1
@compiler-errors
2
Confusing error around 2024 impl trait lifetime capture A-diagnostics Area: Messages for errors, warnings, and lints A-edition-2024 Area: The 2024 edition D-confusing Diagnostics: Confusing error or lint that should be reworked. F-lifetime_capture_rules_2024 `#![feature(lifetime_capture_rules_2024)]` I-edition-triaged Issue: This issue has been reviewed and triaged by the Edition team. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#128113 opened Jul 23, 2024 by ehuss
@compiler-errors
2
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