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Issues list

ICE: type parameter T/#1 (T/#1/1) out of range when instantiating, args=[?2t] C-bug Category: This is a bug. F-associated_const_equality `#![feature(associated_const_equality)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#141919 opened Jun 2, 2025 by cushionbadak
1
ICE+errors: associated_const_equality: normalize_erasing_regions.rs: Failed to normalize Alias(Projection, _) 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 F-associated_const_equality `#![feature(associated_const_equality)]` F-generic_const_exprs `#![feature(generic_const_exprs)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ P-low Low priority requires-incomplete-features This issue requires the use of incomplete features. requires-nightly This issue requires a nightly compiler in some way. S-has-bisection Status: A bisection has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#141489 opened May 24, 2025 by sigurd4
4
ICE: unexpected ambiguity: CanonicalQueryInput - broken MIR C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#141478 opened May 24, 2025 by konnorandrews
8
doc_auto_cfg no longer applies a cfg badge to certain inlined cross-crate re-exported items with a #[cfg] A-cfg Area: `cfg` conditional compilation A-cross-crate-reexports Area: Documentation that has been re-exported from a different crate C-bug Category: This is a bug. F-doc_auto_cfg `#![feature(doc_auto_cfg)]` 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-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#141301 opened May 20, 2025 by epage
10
ICE: overflow evaluating the requirement / impl was matchable against binder but now it is not A-associated-items Area: Associated items (types, constants & functions) A-trait-system Area: Trait system C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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-types Relevant to the types team, which will review and decide on the PR/issue.
#141124 opened May 17, 2025 by matthiaskrgr
1
ICE: type parameter T/#1 (T/#1/1) out of range when instantiating, args=[?0t] C-bug Category: This is a bug. F-min_generic_const_args `#![feature(min_generic_const_args)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-incomplete-features This issue requires the use of incomplete features. 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.
#141014 opened May 14, 2025 by dpytaylo
2
Stack overflow when tls_callback called on x86_64-pc-windows-gnu A-panic Area: Panicking machinery A-thread-locals Area: Thread local storage (TLS) C-bug Category: This is a bug. O-windows-gnu Toolchain: GNU, Operating system: Windows S-has-bisection Status: A bisection has been found for this issue T-libs Relevant to the library team, which will review and decide on the PR/issue.
#140798 opened May 8, 2025 by Berrysoft
@joboet
10
ICE: export stable: unreachable C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#140693 opened May 6, 2025 by matthiaskrgr
4
ICE: Failed to normalize *mut std::pin::Pin<std::boxed::Box<Alias(Projection, AliasTy { args: [impl AsyncFnOnce().. C-bug Category: This is a bug. F-async_drop `#![feature(async_drop)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-incomplete-features This issue requires the use of incomplete features. 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.
#140531 opened Apr 30, 2025 by matthiaskrgr
1
ICE: expand: unimplemented A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. F-macro_metavar_expr `#![feature(macro_metavar_expr)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#140479 opened Apr 29, 2025 by matthiaskrgr
3
broken mir on async drop (-Zlint-mir) C-bug Category: This is a bug. F-async_drop `#![feature(async_drop)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-incomplete-features This issue requires the use of incomplete features. 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.
#140429 opened Apr 29, 2025 by matthiaskrgr
2
ICE: Got a scalar pair where a scalar was expected when using the Self on fn, a wrong place. -Zvalidate-mir Unstable option: MIR validation A-mir-opt-GVN Area: MIR opt Global Value Numbering (GVN) C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#140365 opened Apr 27, 2025 by TsiyukiRitsuki
3
ICE: Failed to normalize Alias(Opaque, AliasTy .. -Zvalidate-mir Unstable option: MIR validation C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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 T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#140303 opened Apr 25, 2025 by matthiaskrgr
2
ICE: try_lower_anon_const_lit: received const param which shouldn't be possible with generic_const_exprs C-bug Category: This is a bug. F-generic_const_exprs `#![feature(generic_const_exprs)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ P-low Low priority requires-nightly This issue requires a nightly compiler in some way. 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.
#140275 opened Apr 25, 2025 by wychlw
1
ICE: has escaping bound vars, so it cannot be wrapped in a dummy binder C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#140099 opened Apr 21, 2025 by matthiaskrgr
2
ICE: ConstArgHasWrongType failed but we don't know how to compute type for {const error} C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#139905 opened Apr 16, 2025 by matthiaskrgr
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
ICE: assertion failed: bpos.to_u32() >= mbc.pos.to_u32() + mbc.bytes as u32' A-borrow-checker Area: The borrow checker A-error-handling Area: Error handling A-frontend Area: Compiler frontend (errors, parsing and HIR) A-parser Area: The lexing & parsing of Rust source code to an AST C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#139089 opened Mar 28, 2025 by matthiaskrgr
3
ICE: encountered a fresh type during canonicalization A-dyn-trait Area: trait objects, vtable layout C-bug Category: This is a bug. E-needs-test Call for participation: An issue has been fixed and does not reproduce, but no test has been added. F-trait_alias `#![feature(trait_alias)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-nightly This issue requires a nightly compiler in some way. 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.
#138891 opened Mar 24, 2025 by matthiaskrgr
@compiler-errors
3
[bug] When I Use tauri-plugin-http and reqwest either, I got a panic A-async-await Area: Async & Await A-auto-traits Area: auto traits (e.g., `auto trait Send {}`) A-coercions Area: implicit and explicit `expr as Type` coercions A-dyn-trait Area: trait objects, vtable layout 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-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.
#138274 opened Mar 9, 2025 by Wan9xy
@compiler-errors
8
ICE: Found unstable fingerprints for evaluate_obligation(4742c1b409da674c-2b2e292cfb3cefd9): Ok(EvaluatedToOk) A-incr-comp Area: Incremental compilation C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ 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.
#138209 opened Mar 8, 2025 by 1xX69
4
Bad codegen for widen followed by ARM vdupq_n_* A-SIMD Area: SIMD (Single Instruction Multiple Data) C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such O-AArch64 Armv8-A or later processors in AArch64 mode 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 T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137407 opened Feb 22, 2025 by CatsAreFluffy
8
rustdoc regression: intra-doc link links to wrong item A-intra-doc-links Area: Intra-doc links, the ability to link to items in docs by name 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-has-bisection Status: A bisection has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#136777 opened Feb 9, 2025 by tchebb
@Shunpoco
7
Compiler stack overflow when calling function on generic struct with TAIT resolving to lambda C-bug Category: This is a bug. F-type_alias_impl_trait `#[feature(type_alias_impl_trait)]` I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. 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.
#136390 opened Feb 1, 2025 by Elekrisk
5
-Z meta-stats + RUSTC_LOG=info ICEs on next build A-diagnostics Area: Messages for errors, warnings, and lints C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ requires-nightly This issue requires a nightly compiler in some way. S-has-bisection Status: A bisection has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#135935 opened Jan 23, 2025 by klensy
2
ProTip! Find all open issues with in progress development work with linked:pr.