Search results

ICE: Misuse of <code>#[rustc_layout_scalar_valid_range_start(..)]</code> causes ICE even though<code>#![feature(rustc_attrs)]</code> is not enabled

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

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

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

Status: Open.

#147761 In rust-lang/rust;

· Zalathar opened on Oct 16, 2025

Exporting a <code>rustc_macro_transparency = "opaque"</code> macro from <code>std</code> spams <code>missing stability attribute</code> errors

A-decl-macros-2-0Area: Declarative macros 2.0 (#39412)Area: Declarative macros 2.0 (#39412)

A-hygieneArea: Macro hygieneArea: Macro hygiene

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

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

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

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

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

requires-nightlyThis issue requires a nightly compiler in some way.This issue requires a nightly compiler in some way.

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.

#146993 In rust-lang/rust;

· Jules-Bertholet opened on Sep 24, 2025

ICE: <code>format_args!</code> optimization can construct a <code>&amp;str</code> longer than <code>isize::MAX</code>

A-fmtArea: `core::fmt`Area: `core::fmt`

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.

#138811 In rust-lang/rust;

· thaliaarchi opened on Mar 21, 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 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