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[ICE]: Missing value for constant, but no error reported?

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.

#154556 In rust-lang/rust;

· cdrksm opened on Mar 29, 2026

[ICE]: SIGSEGV when using a trait's contant on another trait's associated type with an associated type with a life-time

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.

#154552 In rust-lang/rust;

· Cryptjar opened on Mar 29, 2026

Borrow checker does not recognize direct-call of try operator (i.e., Err()?), causing reporting of use of moved value

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

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.

#154550 In rust-lang/rust;

· KShChan opened on Mar 29, 2026

Suboptimal code generation with unnecessary stack spills around std::mem::take / alternative implementation suggested

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.

Status: Open.

#154546 In rust-lang/rust;

· KaiPetzke opened on Mar 29, 2026

[ICE]: #[track_caller] requires the Rust ABI

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.

#154541 In rust-lang/rust;

· matthiaskrgr opened on Mar 29, 2026

[ICE]: mgca: No HirId for DefId

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) ❄️

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.

#154539 In rust-lang/rust;

· matthiaskrgr opened on Mar 29, 2026

[ICE]: mgca: type_of called on const argument's anon const before the const argument was lowered

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

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

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.

#154538 In rust-lang/rust;

· matthiaskrgr opened on Mar 29, 2026

[ICE]: bound types encountered in structurally_relate_tys

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

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

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.

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

Status: Open.

#154537 In rust-lang/rust;

· matthiaskrgr opened on Mar 29, 2026

[ICE]: assertion failed: !ty.has_non_region_infer()

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

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

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

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.

requires-debug-assertionsThis issue requires a build of rustc or tooling with debug-assertions in some wayThis issue requires a build of rustc or tooling with debug-assertions 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.

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

Status: Open.

#154536 In rust-lang/rust;

· matthiaskrgr opened on Mar 29, 2026

[ICE]: trait bounds on EII not yet supported

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

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

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.

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

Status: Open.

#154533 In rust-lang/rust;

· Anonymous1-design opened on Mar 29, 2026

rustc fails to determine that async closure is Send, claims &str does not implement Send

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.

Status: Open.

#154523 In rust-lang/rust;

· ds84182 opened on Mar 28, 2026

rustc cannot determine if a type is Sized

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.

Status: Open.

#154522 In rust-lang/rust;

· ds84182 opened on Mar 28, 2026