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Issues list

ICE: encountered unexpected unsized field in layout of A-layout Area: Memory layout of types C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ I-prioritize Issue: Indicates that prioritization has been requested for this issue. regression-from-stable-to-stable Performance or correctness regression from one stable version to another. S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. 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.
#135020 opened Jan 2, 2025 by matthiaskrgr
5
std::ptr::swap_nonoverlapping is not always untyped 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-from-stable-to-stable Performance or correctness regression from one stable version to another.
#134713 opened Dec 23, 2024 by zachs18
1
@scottmcm
2
Trivial bounds with associated types regression 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`. P-low Low priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-types Relevant to the types team, which will review and decide on the PR/issue.
#134238 opened Dec 13, 2024 by konnorandrews
2
Performance regression between 1.78 and 1.79 A-mir-opt-inlining Area: MIR inlining C-bug Category: This is a bug. I-slow Issue: Problems and improvements with respect to performance of generated code. regression-from-stable-to-stable Performance or correctness regression from one stable version to another. S-needs-repro Status: This issue has no reproduction and needs a reproduction to make progress. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133082 opened Nov 15, 2024 by havasd
5
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
temporary value dropped while borrowed C-bug Category: This is a bug. 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. WG-const-eval Working group: Const evaluation
#132578 opened Nov 3, 2024 by vickenty
2
Panic in nightly 1.83.0 and 1.84.0 with opt-level >= 1 when unwrapping Some variant A-mir-opt Area: MIR optimizations C-bug Category: This is a bug. I-miscompile Issue: Correct Rust code lowers to incorrect machine code 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.
#132353 opened Oct 30, 2024 by Specy 1.83.0
1
@DianQK
24
regression: crate compiles much slower with 1.82 C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. 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.
#132064 opened Oct 23, 2024 by Nutomic
2
12
Regression: geoarrow crate does not compile in release mode on 1.82 A-mir-opt-inlining Area: MIR inlining C-bug Category: This is a bug. P-high High 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. T-types Relevant to the types team, which will review and decide on the PR/issue. WG-mir-opt Working group: MIR optimizations
#131960 opened Oct 20, 2024 by theemathas
8
Regression: tests/codegen/issues/issue-101082.rs fails with -Ctarget-cpu=x86-64-v3 A-codegen Area: Code generation A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. P-medium Medium priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another.
#131563 opened Oct 11, 2024 by cuviper
9
Implementation of trait "not general enough" in nightly, works fine on stable C-bug Category: This is a bug. P-high High priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-types Relevant to the types team, which will review and decide on the PR/issue.
#131488 opened Oct 10, 2024 by ejmount
10
Optimizer regression in Rust nightly A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. llvm-fixed-upstream Issue expected to be fixed by the next major LLVM upgrade, or backported fixes 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.
#131162 opened Oct 2, 2024 by Coder-256 1.82.0
2
regression: cannot move a value of type [u8] regression-from-stable-to-stable Performance or correctness regression from one stable version to another.
#130580 opened Sep 19, 2024 by BoxyUwU 1.82.0
3
Deadlock when capturing a backtrace from allocator during panic with test output capturing enabled A-backtrace Area: Backtraces C-bug Category: This is a bug. regression-from-stable-to-stable Performance or correctness regression from one stable version to another.
#130187 opened Sep 10, 2024 by Nemo157
2
ICE: Layout::compute: unexpected type _ A-layout Area: Memory layout of types C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ P-medium Medium priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. 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.
#130104 opened Sep 8, 2024 by matthiaskrgr
2
Error on bounds for unused lifetime A-lifetimes Area: Lifetimes / regions C-bug Category: This is a bug. P-low Low priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-types Relevant to the types team, which will review and decide on the PR/issue.
#130014 opened Sep 6, 2024 by Coder-256
3
regression: assertion left == right failed for floats 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.
#128898 opened Aug 9, 2024 by BoxyUwU
8
regression: overflow evaluating the requirement E-needs-test Call for participation: An issue has been fixed and does not reproduce, but no test has been added. 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.
#128887 opened Aug 9, 2024 by BoxyUwU 1.81.0
26
Performance regression with get_many_mut() I-heavy Issue: Problems and improvements with respect to binary size of generated code. I-slow Issue: Problems and improvements with respect to performance of generated code. P-medium Medium priority perf-regression Performance regression. regression-from-stable-to-stable Performance or correctness regression from one stable version to another.
#128214 opened Jul 25, 2024 by ChayimFriedman2 1.81.0
2
unreachable!("state is never set to invalid values") is reached A-linkage Area: linking into static, shared libraries and binaries C-bug Category: This is a bug. C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness O-windows Operating system: Windows 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.
#127979 opened Jul 19, 2024 by janhohenheim
53
Degradation from rustc 1.71.0 -> 1.79.0 ("infinite space" compile error not recognized anymore) A-inference Area: Type inference C-bug Category: This is a bug. I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. 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.
#127910 opened Jul 18, 2024 by Asqiir
6
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
Panic when setting RUST_MIN_STACK incorrectly C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#126431 opened Jun 13, 2024 by jeffreyssmith2nd
5
Borrow checker error does not figure out source of 'static requirement through closure capture A-diagnostics Area: Messages for errors, warnings, and lints 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.
#126342 opened Jun 12, 2024 by Noratrieb
4
rustc complains about unused code if item is used in #[automatically_derived] context A-diagnostics Area: Messages for errors, warnings, and lints C-bug Category: This is a bug. P-low Low 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.
#126031 opened Jun 5, 2024 by aumetra
@mu001999
8
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