Skip to content

Issues: rust-lang/rust

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Clear current search query, filters, and sorts
78 Open 82 Closed
78 Open 82 Closed
Author
Filter by author
Loading
Label
Filter by label
Loading
Use alt + click/return to exclude labels
or ⇧ + click/return for logical OR
Projects
Filter by project
Loading
Milestones
Filter by milestone
Loading
Assignee
Filter by who’s assigned
Assigned to nobody Loading
Sort
Sort by
Newest Oldest Most commented Least commented Recently updated Least recently updated Best match
Most reactions
👍 👎 😄 🎉 😕 ❤️ 🚀 👀

Issues list

endless loop instead of an overflow error, in the presence of multiple requirements that would overflow. A-GATs Area: Generic associated types (GATs) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-types Relevant to the types team, which will review and decide on the PR/issue.
#140946 opened May 12, 2025 by moshevds
3
ICE / Hang found DefPathHash collision between DefPath C-bug Category: This is a bug. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. 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.
#140796 opened May 8, 2025 by matthiaskrgr
3
rustdoc hangs on recursive associated types A-auto-traits Area: auto traits (e.g., `auto trait Send {}`) A-synthetic-impls Area: Synthetic impls, used by rustdoc to document auto traits and traits with blanket impls A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#139964 opened Apr 17, 2025 by theemathas
@fmease
5
Creeping macro expansion - possible exponential time? A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#139306 opened Apr 3, 2025 by matthiasbeyer
2
Compiler hangs during execution A-coherence Area: Coherence A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. 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.
#139197 opened Apr 1, 2025 by jjl9807
3
Cargo Build gets stuck compiling my code C-bug Category: This is a bug. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. S-needs-repro Status: This issue has no reproduction and needs a reproduction to make progress.
#135050 opened Jan 2, 2025 by drewcassidy
5
Infinite recursion in type resolution for unused type C-bug Category: This is a bug. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-types Relevant to the types team, which will review and decide on the PR/issue.
#134719 opened Dec 24, 2024 by andriyDev
compiler trait solver gets stuck (infinite loop or tail recursion?), related to GAT and associated type equality constraint A-GATs Area: Generic associated types (GATs) C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-types Relevant to the types team, which will review and decide on the PR/issue.
#134370 opened Dec 16, 2024 by nerditation
4
Trait resolution fails, and then rustc hangs. A-associated-items Area: Associated items (types, constants & functions) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. 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.
#134312 opened Dec 14, 2024 by frankmcsherry
1
Hang: type_alias_impl_trait C-bug Category: This is a bug. F-type_alias_impl_trait `#[feature(type_alias_impl_trait)]` I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132797 opened Nov 9, 2024 by wxie7
3
Hang after encountering overflow errors for huge types A-diagnostics Area: Messages for errors, warnings, and lints C-bug Category: This is a bug. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. P-high High priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. 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.
#132673 opened Nov 6, 2024 by wxie7
1 of 4 tasks
@compiler-errors
9
Rust compiler hangs when pretty-printing MIR for a constant A-const-eval Area: Constant evaluation, covers all const contexts (static, const fn, ...) A-MIR Area: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.html C-bug Category: This is a bug. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132122 opened Oct 25, 2024 by celinval
3
rustc doesn't finish stuck at rustc_trait_selection::traits::normalize::normalize_with_depth_to A-trait-system Area: Trait system C-bug Category: This is a bug. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132032 opened Oct 22, 2024 by fabianmurariu
7
Compiler freezes on trait with generic associated type A-associated-items Area: Associated items (types, constants & functions) A-GATs Area: Generic associated types (GATs) A-lifetimes Area: Lifetimes / regions A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130640 opened Sep 20, 2024 by antonilol
1
Hang on overflowing evaluating the requirement with extra generic types A-inference Area: Type inference A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. P-medium Medium priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#127315 opened Jul 4, 2024 by sgdxbc
5
Infinite loop in type inference A-trait-system Area: Trait system C-bug Category: This is a bug. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126664 opened Jun 19, 2024 by konnorandrews
3
rustc hangs / infinite loop on small example with generic_const_exprs and specialization A-const-generics Area: const generics (parameters and arguments) C-bug Category: This is a bug. F-generic_const_exprs `#![feature(generic_const_exprs)]` I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. P-low Low priority
#126609 opened Jun 17, 2024 by anderspapitto
1
const expression produces infinite compilation C-bug Category: This is a bug. F-generic_const_exprs `#![feature(generic_const_exprs)]` fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. requires-incomplete-features This issue requires the use of incomplete features. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#126106 opened Jun 7, 2024 by thomasyonug
2
Compiling this code caused the compiler to block C-bug Category: This is a bug. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#125428 opened May 23, 2024 by umoho
2
Rustc hangs infinitely and consumes increasingly more memory on specific macro expansion A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#123848 opened Apr 12, 2024 by blaumeise20
@vincenzopalazzo
6
Infinite Loop when Evaluating Recursive Type A-associated-items Area: Associated items (types, constants & functions) A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-types Relevant to the types team, which will review and decide on the PR/issue.
#122443 opened Mar 13, 2024 by entropylost
Compiler indefinitely takes resources when HRTB is used in conjunction with lifetime in GAT A-GATs Area: Generic associated types (GATs) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#121821 opened Feb 29, 2024 by dodomorandi
2
coherence errors: inspect analyse visitor causes hangs A-coherence Area: Coherence C-bug Category: This is a bug. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. 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.
#136243 opened Feb 22, 2024 by lcnr
-Znext-solver=coherence: stack overflow C-bug Category: This is a bug. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#119905 opened Jan 12, 2024 by matthiaskrgr
3
Recursive generics A-type-system Area: Type system C-bug Category: This is a bug. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. P-low Low priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. 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.
#118449 opened Nov 29, 2023 by notdanilo
3
ProTip! Add no:assignee to see everything that’s not assigned.