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Issues list

Diagnostic assumes that braced unresolved identifiers are formatting arguments A-diagnostics Area: Messages for errors, warnings, and lints A-resolve Area: Name/path resolution done by `rustc_resolve` specifically D-incorrect Diagnostics: A diagnostic that is giving misleading or incorrect information. D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#141350 opened May 21, 2025 by fmease
1
@xizheyin
8
rustc confuses missing types with missing type parameters A-diagnostics Area: Messages for errors, warnings, and lints A-resolve Area: Name/path resolution done by `rustc_resolve` specifically D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#139999 opened Apr 18, 2025 by Wilfred
1
1
List of trait implementations should be version-sorted A-diagnostics Area: Messages for errors, warnings, and lints D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#135098 opened Jan 4, 2025 by joshtriplett
1
1
std::arch::wasm::unreachable() is stable but does not compile A-diagnostics Area: Messages for errors, warnings, and lints A-stability Area: `#[stable]`, `#[unstable]` etc. D-imprecise-spans Diagnostics: spans don't point to exactly the erroneous code D-papercut Diagnostics: An error or lint that needs small tweaks. O-wasm Target: WASM (WebAssembly), http://webassembly.org/
#133015 opened Nov 13, 2024 by eric-seppanen
9
unsafe_op_in_unsafe_fn causes unnecessary unsafe warnings A-diagnostics Area: Messages for errors, warnings, and lints A-edition-2024 Area: The 2024 edition A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-edition Diagnostics: An error or lint that should account for edition differences. D-papercut Diagnostics: An error or lint that needs small tweaks. I-edition-triaged Issue: This issue has been reviewed and triaged by the Edition team. L-false-positive Lint: False positive (should not have fired). L-unsafe_op_in_unsafe_fn Lint: unsafe_op_in_unsafe_fn T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132856 opened Nov 10, 2024 by ehuss
2
impl-trait-overcaptures cannot be applied, missing parens A-diagnostics Area: Messages for errors, warnings, and lints 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-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130957 opened Sep 27, 2024 by matthiaskrgr
match &[first, ..more] leads down a suggestion garden path A-diagnostics Area: Messages for errors, warnings, and lints A-patterns Relating to patterns and pattern matching A-resolve Area: Name/path resolution done by `rustc_resolve` specifically 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-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130639 opened Sep 20, 2024 by nabijaczleweli
2
Point at unit structs in type errors when they are the pattern of a let binding A-diagnostics Area: Messages for errors, warnings, and lints D-confusing Diagnostics: Confusing error or lint that should be reworked. D-papercut Diagnostics: An error or lint that needs small tweaks. 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.
#129792 opened Aug 30, 2024 by estebank
E0050 emitted unexpectedly on missing : A-diagnostics Area: Messages for errors, warnings, and lints A-parser Area: The lexing & parsing of Rust source code to an AST D-confusing Diagnostics: Confusing error or lint that should be reworked. D-papercut Diagnostics: An error or lint that needs small tweaks. 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.
#129273 opened Aug 19, 2024 by lolbinarycat
1
@chenyukang
1
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
const { ... } blocks cannot be written outside of function A-diagnostics Area: Messages for errors, warnings, and lints C-bug Category: This is a bug. D-papercut Diagnostics: An error or lint that needs small tweaks. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand.
#128338 opened Jul 29, 2024 by StackOverflowExcept1on
1
4
APITIT get treated as ordinary params in "not all trait impls implemented" error A-diagnostics Area: Messages for errors, warnings, and lints D-incorrect Diagnostics: A diagnostic that is giving misleading or incorrect information. D-papercut Diagnostics: An error or lint that needs small tweaks.
#126395 opened Jun 13, 2024 by lcnr
1
unnameable_types lint emits incorrect visibility syntax A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. D-papercut Diagnostics: An error or lint that needs small tweaks. L-unnameable_types Lint: unnameable_types T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126241 opened Jun 10, 2024 by kpreid
1
"Binding is possibly uninitalized" reports some additional spans incorrectly in addition to the correct one A-control-flow Area: Control flow A-diagnostics Area: Messages for errors, warnings, and lints D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126133 opened Jun 7, 2024 by Arnavion
@linyihai
1
Failure to recognize &String as equivalent to &str A-diagnostics Area: Messages for errors, warnings, and lints C-enhancement Category: An issue proposing an enhancement or a PR with one. D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#125450 opened May 23, 2024 by amab8901
2
Instantiating Same Type via Function vs Directly => Compiler Thinks They Are Different Types. A-diagnostics Area: Messages for errors, warnings, and lints C-bug Category: This is a bug. D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#124799 opened May 6, 2024 by amab8901
5
When using Box<self> in first method parameter, the error output provides the wrong type in help message A-diagnostics Area: Messages for errors, warnings, and lints A-parser Area: The lexing & parsing of Rust source code to an AST 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-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#124657 opened May 3, 2024 by sisungo
1
let else not suggested for refutable let patterns. A-diagnostics Area: Messages for errors, warnings, and lints A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#122404 opened Mar 12, 2024 by max-ishere
5
Wrong file reported in "within type" compiler errors A-diagnostics Area: Messages for errors, warnings, and lints D-papercut Diagnostics: An error or lint that needs small tweaks. P-low Low priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#121930 opened Mar 3, 2024 by BenWiederhake
3
"item TryFrom is imported redundantly" doesn't have automatic fix A-diagnostics Area: Messages for errors, warnings, and lints A-resolve Area: Name/path resolution done by `rustc_resolve` specifically A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#121315 opened Feb 19, 2024 by fintelia
1
7
E0872 and E0746 should suggest "impl Trait" more prominently A-diagnostics Area: Messages for errors, warnings, and lints D-confusing Diagnostics: Confusing error or lint that should be reworked. D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#121037 opened Feb 13, 2024 by zackw
1
2
Inconsistent format string support for binary and hex representations of arrays A-diagnostics Area: Messages for errors, warnings, and lints A-fmt Area: `core::fmt` C-bug Category: This is a bug. D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#119300 opened Dec 25, 2023 by ChaiTRex
1
An nbsp isn’t treated as whitespace but instead throws an error A-parser Area: The lexing & parsing of Rust source code to an AST D-papercut Diagnostics: An error or lint that needs small tweaks. 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.
#118874 opened Dec 12, 2023 by TheBlckbird
2
Suggest not using method call syntax when type can't be inferred A-diagnostics Area: Messages for errors, warnings, and lints A-inference Area: Type inference A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#118804 opened Dec 10, 2023 by dullbananas
1
Confusing error when implementing a trait over a reference and incorrectly using &self as parameter A-diagnostics Area: Messages for errors, warnings, and lints A-trait-system Area: Trait system D-incorrect Diagnostics: A diagnostic that is giving misleading or incorrect information. D-papercut Diagnostics: An error or lint that needs small tweaks. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#118211 opened Nov 23, 2023 by qsantos
1
ProTip! Exclude everything labeled bug with -label:bug.