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ICE: <code>type parameter </code>T/#1<code> (T/#1/1) out of range when instantiating, args=[?2t]</code>

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

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

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

S-has-bisectionStatus: A bisection has been found for this issueStatus: A bisection has been found for this issue

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.

Status: Open.

#141919 In rust-lang/rust;

· cushionbadak opened on Jun 2, 2025

ICE+errors: associated_const_equality: normalize_erasing_regions.rs: Failed to normalize Alias(Projection, _)

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

E-needs-mcveCall for participation: This issue has a repro, but needs a Minimal Complete and Verifiable ExampleCall for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example

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

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

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

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

S-has-bisectionStatus: A bisection has been found for this issueStatus: A bisection 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.

Status: Open.

#141489 In rust-lang/rust;

· sigurd4 opened on May 24, 2025

[ICE]: Associated const projection not yet supported

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

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

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

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.

WG-trait-system-refactorThe Rustc Trait System Refactor Initiative (-Znext-solver)The Rustc Trait System Refactor Initiative (-Znext-solver)

Status: Open.

#134641 In rust-lang/rust;

· sigurd4 opened on Dec 22, 2024

ICE: <code>invalid immediate for given destination place: scalar value has wrong size</code>

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

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

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

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

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

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.

#131406 In rust-lang/rust;

· matthiaskrgr opened on Oct 8, 2024

access outside the bounds for given AllocRange

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

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

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

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

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.

#131046 In rust-lang/rust;

· Naserume opened on Sep 30, 2024

ICE: <code>asked to assemble auto trait candidates of unexpected type: FreshTy(0)</code>

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

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

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

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.

Bug

#130411 In rust-lang/rust;

· matthiaskrgr opened on Sep 15, 2024

Permit trait object types where all (non-generic) associated constants are specified (via assoc item bindings)

A-dyn-compatibilityArea: Dyn compatibility (formerly: object safety)Area: Dyn compatibility (formerly: object safety)

A-dyn-traitArea: trait objects, vtable layoutArea: trait objects, vtable layout

C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.

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

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

S-blockedStatus: Blocked on something else such as an RFC or other implementation work.Status: Blocked on something else such as an RFC or other implementation work.

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.

#130300 In rust-lang/rust;

· fmease opened on Sep 13, 2024

ICE: <code>assertion failed: layout.is_sized()</code> with <code>feature(associated_const_equality)</code>

A-layoutArea: Memory layout of typesArea: Memory layout of types

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

E-needs-testCall for participation: An issue has been fixed and does not reproduce, but no test has been added.Call for participation: An issue has been fixed and does not reproduce, but no test has been added.

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

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

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.

#127643 In rust-lang/rust;

· Naserume opened on Jul 12, 2024

Associated constants used in equality constraints should be considered as used

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

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

L-dead_codeLint: dead_codeLint: dead_code

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.

#126729 In rust-lang/rust;

· mu001999 opened on Jun 20, 2024

ICE: rustdoc: Cannot turn <code>UnevaluatedConst</code> into <code>AliasTy</code>

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

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

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

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

Status: Open.

#125128 In rust-lang/rust;

· matthiaskrgr opened on May 14, 2024

ICE: <code>unexpected infer type</code>

A-dyn-traitArea: trait objects, vtable layoutArea: trait objects, vtable layout

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

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

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

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.

#123140 In rust-lang/rust;

· matthiaskrgr opened on Mar 27, 2024

Assoc const equality bounds aren't taken into consideration when normalizing const projections

A-trait-systemArea: Trait systemArea: Trait system

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

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

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

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.

#120905 In rust-lang/rust;

· fmease opened on Feb 11, 2024