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Issues list

Lint on mod foo {} inside of foo.rs A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-feature-request Category: A feature request, i.e: not implemented / a PR. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. P-low Low priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-lang Relevant to the language team
#141385 opened May 22, 2025 by estebank
@chenyukang
1
Trait::nonexistant treats Trait as a type, resulting in bad errors A-diagnostics Area: Messages for errors, warnings, and lints D-confusing Diagnostics: Confusing error or lint that should be reworked. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. 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.
#136994 opened Feb 13, 2025 by lcnr
Missing lifetimes needed in impl item don't have enough help for newcomer devs A-diagnostics Area: Messages for errors, warnings, and lints A-lifetimes Area: Lifetimes / regions A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#135589 opened Jan 16, 2025 by estebank
1 of 9 tasks
cfg resolve diagnostic doesn't show up for derive macro that matches trait name A-cfg Area: `cfg` conditional compilation A-diagnostics Area: Messages for errors, warnings, and lints A-resolve Area: Name/path resolution done by `rustc_resolve` specifically D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134448 opened Dec 18, 2024 by joshka
2
Hard-to-read ICEs when fluent translation uses non-existing variable A-contributor-roadblock Area: Makes things more difficult for new or seasoned contributors to Rust A-diagnostics Area: Messages for errors, warnings, and lints A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic D-diagnostic-infra Diagnostics: Issues that affect all diagnostics, or relate to the diagnostic machinery itself. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-papercut Diagnostics: An error or lint that needs small tweaks. 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.
#128340 opened Jul 29, 2024 by RalfJung
8
Detect when ? is being called on a type *after* .unwrap or .expect was called on a Result or Option A-diagnostics Area: Messages for errors, warnings, and lints D-lack-of-suggestion Diagnostics: Adding a (structured) suggestion would increase the quality of the diagnostic. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. P-low Low priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#127345 opened Jul 4, 2024 by estebank
1
Inline const expression inside vec!/macros should suggest adding parentheses under edition <2024 A-diagnostics Area: Messages for errors, warnings, and lints A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. F-inline_const Inline constants (aka: const blocks, const expressions, anonymous constants) 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.
#126459 opened Jun 14, 2024 by Zalathar
5
Further improve diagnostics for expressions in pattern position A-diagnostics Area: Messages for errors, warnings, and lints A-parser Area: The lexing & parsing of Rust source code to an AST A-patterns Relating to patterns and pattern matching D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#121697 opened Feb 27, 2024 by fmease
8 of 11 tasks
@ShE3py
3
nightly-only types are confusing in error[E0277]: ? couldn't convert the error to ... A-diagnostics Area: Messages for errors, warnings, and lints D-confusing Diagnostics: Confusing error or lint that should be reworked. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. 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.
#121521 opened Feb 23, 2024 by ericseppanen
4
Compiler complains about failing to infer the closure's argument's type when the issue is that a mutable reference to the closure is expected A-diagnostics Area: Messages for errors, warnings, and lints D-confusing Diagnostics: Confusing error or lint that should be reworked. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#121229 opened Feb 17, 2024 by sgued
lifetime elision for return type can refer to an explicitly named region A-diagnostics Area: Messages for errors, warnings, and lints A-lifetimes Area: Lifetimes / regions A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. C-discussion Category: Discussion or questions that doesn't represent real issues. D-confusing Diagnostics: Confusing error or lint that should be reworked. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-lang Relevant to the language team T-types Relevant to the types team, which will review and decide on the PR/issue.
#121152 opened Feb 15, 2024 by lcnr
2
Confusing error captured variable cannot escape FnMut closure body caused by unnecessary move closure A-diagnostics Area: Messages for errors, warnings, and lints D-confusing Diagnostics: Confusing error or lint that should be reworked. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. 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.
#119733 opened Jan 8, 2024 by tjallingt
3
Vague error message with elided lifetime in impl block A-diagnostics Area: Messages for errors, warnings, and lints D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#119330 opened Dec 27, 2023 by fprasx
1
Confusing parser error when writing expression in item context A-diagnostics Area: Messages for errors, warnings, and lints A-parser Area: The lexing & parsing of Rust source code to an AST D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#119161 opened Dec 20, 2023 by knutwalker
6
rustc starts describing trait bounds and pointing at complicated library internals instead of just saying to add #[derive(Clone)] A-diagnostics Area: Messages for errors, warnings, and lints D-confusing Diagnostics: Confusing error or lint that should be reworked. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#119114 opened Dec 19, 2023 by Thomblin
2
Better help for pub(in parent) in edition 2018 and beyond A-diagnostics Area: Messages for errors, warnings, and lints A-resolve Area: Name/path resolution done by `rustc_resolve` specifically D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#118878 opened Dec 12, 2023 by zackw
1
Better Error for struct's with a field, that is DST, which is not the last A-diagnostics Area: Messages for errors, warnings, and lints A-DSTs Area: Dynamically-sized types (DSTs) A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#118522 opened Dec 1, 2023 by C0D3-M4513R
Compiler could be more helpful A-diagnostics Area: Messages for errors, warnings, and lints A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#116738 opened Oct 14, 2023 by 3tilley
@3tilley
5
C#-style named arguments emit type ascription errors A-diagnostics Area: Messages for errors, warnings, and lints A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-papercut Diagnostics: An error or lint that needs small tweaks. E-mentor Call for participation: This issue has a mentor. Use #t-compiler/help on Zulip for discussion. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#116411 opened Oct 4, 2023 by workingjubilee
@nouritsu
31
Trait methods with implicit lifetime results A-diagnostics Area: Messages for errors, warnings, and lints A-lifetimes Area: Lifetimes / regions C-bug Category: This is a bug. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#116107 opened Sep 23, 2023 by AmesCornish
2
Suggest using macro_use when trying to macro_export from a proc_macro A-diagnostics Area: Messages for errors, warnings, and lints A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#115646 opened Sep 7, 2023 by ranile
Unclear lifetime missmatch in traits A-diagnostics Area: Messages for errors, warnings, and lints D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#113633 opened Jul 12, 2023 by IamTheCarl
1
Unexpected Interpretation of Binary Operation starting with Unsafe A-diagnostics Area: Messages for errors, warnings, and lints A-parser Area: The lexing & parsing of Rust source code to an AST D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand.
#110293 opened Apr 13, 2023 by power-unsealed
6
#[derive(Clone, Copy)] doesn't work A-diagnostics Area: Messages for errors, warnings, and lints A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#108894 opened Mar 8, 2023 by vporton
3
Diagnostics around implementing mutable iterators should be improved A-diagnostics Area: Messages for errors, warnings, and lints C-enhancement Category: An issue proposing an enhancement or a PR with one. D-newcomer-roadblock Diagnostics: Confusing error or lint; hard to understand for new users. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#107031 opened Jan 18, 2023 by mejrs
5
ProTip! no:milestone will show everything without a milestone.