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

A-mir-optArea: MIR optimizationsArea: MIR optimizations

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.

#149920 In rust-lang/rust;

· matthiaskrgr opened on Dec 12, 2025

Improve <code>write_shared</code> performance

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.

#149915 In rust-lang/rust;

· GuillaumeGomez opened on Dec 12, 2025

Improve UI/UX for trait implementors async loading

A-rustdoc-uiArea: Rustdoc UI (generated HTML)Area: Rustdoc UI (generated HTML)

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.

T-rustdoc-frontendRelevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.

Status: Open.

#149914 In rust-lang/rust;

· GuillaumeGomez opened on Dec 12, 2025

-Z proc-macro-backtrace does not show line numbers

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.

#149913 In rust-lang/rust;

· dhardy opened on Dec 12, 2025

Z unleash-the-miri-inside-of-you doesnt skip const fn checks while constant evaluating

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.

#149912 In rust-lang/rust;

· HomelikeBrick42 opened on Dec 12, 2025

add note when there's a type mismatch due to param_env shadowing

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.

#149910 In rust-lang/rust;

· lcnr opened on Dec 12, 2025

support a way to check bitflags are exhaustive

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.

#149907 In rust-lang/rust;

· lcnr opened on Dec 12, 2025

Warn when using <code>std::panic::catch_unwind</code> with the panic strategy as <code>abort</code>

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.

#149902 In rust-lang/rust;

· Finchiedev opened on Dec 12, 2025

Circularly defined GAT is somehow allowed and ICEs Miri

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

A-GATsArea: Generic associated types (GATs)Area: Generic associated types (GATs)

A-mir-optArea: MIR optimizationsArea: MIR optimizations

A-miriArea: The miri toolArea: The miri tool

A-trait-systemArea: Trait systemArea: Trait system

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) ❄️

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.

#149898 In rust-lang/rust;

· theemathas opened on Dec 12, 2025

Documentation is partially missing when a documented re-export is shadowing a glob re-export

A-cross-crate-reexportsArea: Documentation that has been re-exported from a different crateArea: Documentation that has been re-exported from a different crate

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

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.

#149895 In rust-lang/rust;

· kpreid opened on Dec 12, 2025

Regression <code>unused_assignments</code> for variable with underscore prefix captured by closure

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

I-prioritizeIssue: Indicates that prioritization has been requested for this issue.Issue: Indicates that prioritization has been requested for this issue.

L-unused_assignmentsLint: unused_assignmentsLint: unused_assignments

regression-untriagedUntriaged performance or correctness regression.Untriaged performance or correctness regression.

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.

#149889 In rust-lang/rust;

· SamRodri opened on Dec 11, 2025

Type inference tries to put the unsizing coercion in the wrong place

A-coercionsArea: implicit and explicit `expr as Type` coercionsArea: implicit and explicit `expr as Type` coercions

A-DSTsArea: Dynamically-sized types (DSTs)Area: Dynamically-sized types (DSTs)

A-trait-systemArea: Trait systemArea: Trait system

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

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.

#149881 In rust-lang/rust;

· RalfJung opened on Dec 11, 2025