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ICE: <code>When translating generic parameters from DefId, the expected specialization failed to hold</code>

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

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

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

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

Status: Open.

#132519 In rust-lang/rust;

· matthiaskrgr opened on Nov 2, 2024

ICE :coherence: impl was matchable against Binder but now it is not, otherwise hang

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

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

fixed-by-next-solverFixed by the next-generation trait solver, `-Znext-solver`.Fixed by the next-generation trait solver, `-Znext-solver`.

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

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.

#125014 In rust-lang/rust;

· matthiaskrgr opened on May 11, 2024

query cycle: specialisation <code>cycle detected when building specialization graph of trait</code>

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

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

I-cycleIssue: A query cycle occurred while none was expectedIssue: A query cycle occurred while none was expected

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.

#119344 In rust-lang/rust;

· matthiaskrgr opened on Dec 27, 2023

Compiler hang with recursive trait requirement and <code>default impl</code>

A-specializationArea: Trait impl specializationArea: Trait impl specialization

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

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

I-compiletimeIssue: Problems and improvements with respect to compile times.Issue: Problems and improvements with respect to compile times.

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.

#117909 In rust-lang/rust;

· jruderman opened on Nov 14, 2023

Invalid help suggestion for specialization on associated type with <code>Self</code>

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

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

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.

#117841 In rust-lang/rust;

· polina4096 opened on Nov 12, 2023

Weird interaction between specialization and RPITITs

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

F-async_fn_in_traitStatic async fn in traitsStatic async fn in traits

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

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

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.

#108309 In rust-lang/rust;

· compiler-errors opened on Feb 21, 2023

Cow&lt;'a, T&gt; isn't specializable while FooCow&lt;'a, T&gt; is

A-specializationArea: Trait impl specializationArea: Trait impl specialization

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

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

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

Status: Open.

#106710 In rust-lang/rust;

· ryoqun opened on Jan 11, 2023

Specialized Associated Type Cannot be Assigned to Value of Concrete Type (Despite type_name Working as Expected)

A-specializationArea: Trait impl specializationArea: Trait impl specialization

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

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

Status: Open.

#106700 In rust-lang/rust;

· NathanielB123 opened on Jan 11, 2023

ICE "... is not fully resolved'" with min_specialization and lifetime param

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

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) ❄️

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.

#103708 In rust-lang/rust;

· jruderman opened on Oct 29, 2022

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

<code>default impl SuperTrait for impl SubTrait</code> =&gt; trait requirement evaluation overflow

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

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

Status: Open.

#98478 In rust-lang/rust;

· CAD97 opened on Jun 25, 2022

Specialized associated type doesn't have impls that it should have

A-trait-systemArea: Trait systemArea: Trait system

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

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

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.

#98389 In rust-lang/rust;

· ivan770 opened on Jun 22, 2022