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ICE (Nightly) Using a closure for <code>_called_at_rt</code> arg in <code>const_eval_select</code> causes "broken MIR" ICE

A-closuresArea: Closures (`|…| { … }`)Area: Closures (`|…| { … }`)

A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)

A-intrinsicsArea: IntrinsicsArea: Intrinsics

C-bugCategory: This is a bug.Category: This is a bug.

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

requires-internal-featuresThis issue requires the use of internal features.This issue requires the use of internal features.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#145583 In rust-lang/rust;

· NexusXe opened on Aug 18, 2025

CURRENT_RUSTC_VERSION does not work with <code>#[deprecated]</code>

A-attributesArea: Attributes (`#[…]`, `#![…]`)Area: Attributes (`#[…]`, `#![…]`)

A-contributor-roadblockArea: Makes things more difficult for new or seasoned contributors to RustArea: Makes things more difficult for new or seasoned contributors to Rust

L-deprecatedLint: deprecatedLint: deprecated

requires-internal-featuresThis issue requires the use of internal features.This issue requires the use of internal features.

T-libsRelevant to the library team, which will review and decide on the PR/issue.Relevant to the library team, which will review and decide on the PR/issue.

Status: Open.

#126323 In rust-lang/rust;

· RalfJung opened on Jun 12, 2024

ICE: <code>None</code> in <code>rustc_hir_typeck</code> due to malformed attribute

C-bugCategory: This is a bug.Category: This is a bug.

F-rustc_attrsInternal rustc attributes gated on the `#[rustc_attrs]` feature gate.Internal rustc attributes gated on the `#[rustc_attrs]` feature gate.

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

requires-internal-featuresThis issue requires the use of internal features.This issue requires the use of internal features.

S-bug-has-testStatus: This bug is tracked inside the repo by a `known-bug` test.Status: This bug is tracked inside the repo by a `known-bug` test.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#124352 In rust-lang/rust;

· matthiaskrgr opened on Apr 24, 2024

ICE in <code>check_mod_const_bodies</code> when compiling a modified libcore

A-stabilityArea: `#[stable]`, `#[unstable]` etc.Area: `#[stable]`, `#[unstable]` etc.

C-bugCategory: This is a bug.Category: This is a bug.

F-rustc_attrsInternal rustc attributes gated on the `#[rustc_attrs]` feature gate.Internal rustc attributes gated on the `#[rustc_attrs]` feature gate.

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

P-lowLow priorityLow priority

requires-internal-featuresThis issue requires the use of internal features.This issue requires the use of internal features.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#122948 In rust-lang/rust;

· mzabaluev opened on Mar 23, 2024

ICE: <code>rustc_specialization_trait</code> and circular associated type

A-specializationArea: Trait impl specializationArea: Trait impl specialization

C-bugCategory: This is a bug.Category: This is a bug.

F-rustc_attrsInternal rustc attributes gated on the `#[rustc_attrs]` feature gate.Internal rustc attributes gated on the `#[rustc_attrs]` feature gate.

F-specialization`#![feature(specialization)]``#![feature(specialization)]`

glacierICE tracked in rust-lang/glacier.ICE tracked in rust-lang/glacier.

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

requires-internal-featuresThis issue requires the use of internal features.This issue requires the use of internal features.

S-bug-has-testStatus: This bug is tracked inside the repo by a `known-bug` test.Status: This bug is tracked inside the repo by a `known-bug` test.

S-has-mcveStatus: A Minimal Complete and Verifiable Example has been found for this issueStatus: A Minimal Complete and Verifiable Example has been found for this issue

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

T-typesRelevant to the types team, which will review and decide on the PR/issue.Relevant to the types team, which will review and decide on the PR/issue.

Status: Open.

#102252 In rust-lang/rust;

· ChaiTRex opened on Sep 25, 2022

type-check lang items

A-frontendArea: Compiler frontend (errors, parsing and HIR)Area: Compiler frontend (errors, parsing and HIR)

A-lang-itemArea: Language itemsArea: Language items

A-type-systemArea: Type systemArea: Type system

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

E-hardCall for participation: Hard difficulty. Experience needed to fix: A lot.Call for participation: Hard difficulty. Experience needed to fix: A lot.

glacierICE tracked in rust-lang/glacier.ICE tracked in rust-lang/glacier.

I-crashIssue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.

P-lowLow priorityLow priority

requires-internal-featuresThis issue requires the use of internal features.This issue requires the use of internal features.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

T-typesRelevant to the types team, which will review and decide on the PR/issue.Relevant to the types team, which will review and decide on the PR/issue.

Status: Open.

#9307 In rust-lang/rust;

· thestinger opened on Sep 19, 2013