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std::offload requires mangled names

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

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

Status: Open.

#150985 In rust-lang/rust;

· ZuseZ4 opened on Jan 12, 2026

Tracking issue for MCP 957: Lint unsupported, target-specifc codegen flags

B-MCP-approvedBlocker: Approved by an accepted MCP but not yet fully implemented.Blocker: Approved by an accepted MCP but not yet fully implemented.

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

S-tracking-unimplementedStatus: The feature has not been implemented.Status: The feature has not been implemented.

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.

#150984 In rust-lang/rust;

· rustbot opened on Jan 12, 2026

ICE: <code>ty::ConstKind::Error constructed but no error reported</code>

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

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

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

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

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

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

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.

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.

#150983 In rust-lang/rust;

· matthiaskrgr opened on Jan 11, 2026

ICE <code>!d1.warn_ambiguity.get()</code>

A-resolveArea: Name/path resolution done by `rustc_resolve` specificallyArea: Name/path resolution done by `rustc_resolve` specifically

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) ❄️

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.

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.

#150977 In rust-lang/rust;

· matthiaskrgr opened on Jan 11, 2026

ICE

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) ❄️

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.

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.

#150976 In rust-lang/rust;

· graham-hardy opened on Jan 11, 2026

ICE: valtrees: 'called <code>Result::unwrap()</code> on an <code>Err</code> value: ReferencesError(ErrorGuaranteed(()))'

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

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

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

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

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.

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.

#150969 In rust-lang/rust;

· matthiaskrgr opened on Jan 11, 2026

Disallow implementation of UnsizedConstParamTy and ConstParamTy_ in user code

A-const-genericsArea: const generics (parameters and arguments)Area: const generics (parameters and arguments)

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

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

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.

#150963 In rust-lang/rust;

· HackingRepo opened on Jan 11, 2026

Intrinsics should allow a non-const fallback body if hooked for CTFE

A-intrinsicsArea: IntrinsicsArea: Intrinsics

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

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.

#150961 In rust-lang/rust;

· tgross35 opened on Jan 11, 2026

ICE: index out of bounds: the len is 0 but the index is 0

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

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

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

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.

#150960 In rust-lang/rust;

· Keith-Cancel opened on Jan 11, 2026

ICE: <code>can't type-check body of DefId</code>

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

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

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

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.

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.

#150956 In rust-lang/rust;

· matthiaskrgr opened on Jan 11, 2026

ICE: Cyclic trait resolution with associated types in nested impls

A-associated-itemsArea: Associated items (types, constants & functions)Area: Associated items (types, constants & functions)

A-trait-systemArea: Trait systemArea: Trait system

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

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

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.

Status: Open.

#150954 In rust-lang/rust;

· trait-Cong opened on Jan 11, 2026

On conflicting assoc item bindings in trait object types, two similar errors are emitted

A-associated-itemsArea: Associated items (types, constants & functions)Area: Associated items (types, constants & functions)

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

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

D-verboseDiagnostics: Too much output caused by a single piece of incorrect code.Diagnostics: Too much output caused by a single piece of incorrect code.

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.

#150936 In rust-lang/rust;

· fmease opened on Jan 10, 2026