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Issues list

extern "C" const unsafe fn does not trigger the "keyword order for functions declaration" note A-diagnostics Area: Messages for errors, warnings, and lints A-parser Area: The lexing & parsing of Rust source code to an AST 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.
#140171 opened Apr 22, 2025 by cyrgani
Suggest qualifying struct literal path to "escape the shadow" cast by struct-like enum variant 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-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. F-more_qualified_paths `#![feature(more_qualified_paths)]` P-low Low priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#139601 opened Apr 9, 2025 by fmease
feature adt_const_params does not work with &'static str anymore A-const-generics Area: const generics (parameters and arguments) A-diagnostics Area: Messages for errors, warnings, and lints D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#138657 opened Mar 18, 2025 by Arpadzein
2
Lifetime must be 'static, but why? A-borrow-checker Area: The borrow checker A-diagnostics Area: Messages for errors, warnings, and lints A-lifetimes Area: Lifetimes / regions 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.
#138408 opened Mar 12, 2025 by timokoesters
Confusing diagnostic when the error value converted by ? fails to satisfy a 'static bound A-borrow-checker Area: The borrow checker A-diagnostics Area: Messages for errors, warnings, and lints A-trait-system Area: Trait system D-confusing Diagnostics: Confusing error or lint that should be reworked. 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.
#136902 opened Feb 12, 2025 by Zalathar
@mejrs
2
private_macro_use warning needs more information A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. L-private_macro_use Lint: private_macro_use T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#136820 opened Feb 10, 2025 by axos88
Misleading error message - Returning Option<T> when Clone not implemented A-diagnostics Area: Messages for errors, warnings, and lints 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.
#136151 opened Jan 27, 2025 by AustinHellerRepo
4
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
Terse parse error on ident @ pat in destructuring assignment 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-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.
#134778 opened Dec 26, 2024 by workingjubilee
1
Bad parse error on token sequences safe unsafe and unsafe safe 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-incorrect Diagnostics: A diagnostic that is giving misleading or incorrect information. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. 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.
#134580 opened Dec 20, 2024 by ionicmc-rs
18
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
Expected/Found does not point to point where type parameter was inferred A-diagnostics Area: Messages for errors, warnings, and lints 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.
#134091 opened Dec 9, 2024 by BoxyUwU
if and else have incompatible types in a let statement, where else block's evaluation will never be assigned A-control-flow Area: Control flow A-diagnostics Area: Messages for errors, warnings, and lints D-confusing Diagnostics: Confusing error or lint that should be reworked. 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.
#133316 opened Nov 21, 2024 by shanebishop
3
Terse diagnostic for never type fallback lint warning involving try operator and placeholder in path A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. L-dependency_on_unit_never_type_fallback Lint: dependency_on_unit_never_type_fallback T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132358 opened Oct 30, 2024 by hniksic
5
Diagnostic doesn't mention cfg'ed out items if the unresolved path is simple (i.e., a single identifier) 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-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.
#132166 opened Oct 26, 2024 by fmease
1
1
unused_imports on pub use macros::* should explain that [macro_export] macros don't need to be exported. A-diagnostics Area: Messages for errors, warnings, and lints A-lints Area: Lints (warnings about flaws in source code) such as unused_mut. A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. L-unused_imports Lint: unused_imports T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132102 opened Oct 24, 2024 by Kriskras99
1
unsafe { &mut *x } vs &mut unsafe { *x } A-diagnostics Area: Messages for errors, warnings, and lints A-raw-pointers Area: raw pointers, MaybeUninit, NonNull D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand.
#132063 opened Oct 23, 2024 by hkBst
3
A out-of-air lifetime that that may not live long vs. the implementation is not general enough A-diagnostics Area: Messages for errors, warnings, and lints A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-NLL Area: Non-lexical lifetimes (NLL) D-confusing Diagnostics: Confusing error or lint that should be reworked. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. NLL-diagnostics Working towards the "diagnostic parity" goal T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#131821 opened Oct 17, 2024 by xmh0511
2
assert_eq! is not 100% hygienic A-diagnostics Area: Messages for errors, warnings, and lints A-hygiene Area: Macro hygiene A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. D-confusing Diagnostics: Confusing error or lint that should be reworked. 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. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#131446 opened Oct 9, 2024 by GrigorenkoPV
16
GAT type Assoc<T: ?Sized> implicitly requires Self to be 'static A-borrow-checker Area: The borrow checker A-diagnostics Area: Messages for errors, warnings, and lints A-dyn-trait Area: trait objects, vtable layout A-lifetimes Area: Lifetimes / regions 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.
#131008 opened Sep 29, 2024 by Veetaha
4
Unhelpful error message "ambiguous lifetime bound, explicit lifetime bound required" A-diagnostics Area: Messages for errors, warnings, and lints A-dyn-trait Area: trait objects, vtable layout A-lifetimes Area: Lifetimes / regions 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.
#130952 opened Sep 27, 2024 by oberien
1
Make E0277 on Sized its own error code with more focused explanation A-diagnostics Area: Messages for errors, warnings, and lints A-error-codes Area: Explanation of an error code (--explain) 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. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#130359 opened Sep 14, 2024 by kpreid
2
using super in doctests errors A-diagnostics Area: Messages for errors, warnings, and lints A-doctests Area: Documentation tests, run by rustdoc A-resolve Area: Name/path resolution done by `rustc_resolve` specifically D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#130274 opened Sep 12, 2024 by y86-dev
6
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
Build to AArch64 errors with "error: fixup value out of range" A-linkage Area: linking into static, shared libraries and binaries A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ O-AArch64 Armv8-A or later processors in AArch64 mode T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#129299 opened Aug 20, 2024 by midnightveil
ProTip! Updated in the last three days: updated:>2025-05-06.