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Deref coercion doesn't happen in this particular case when using <code>?</code> operator.

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.

#148148 In rust-lang/rust;

· BlankWasThere opened on Oct 26, 2025

Tracking issue for release notes of #145974: Stabilize -Zno-jump-tables into -Cjump-tables=bool

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

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.

relnotesMarks issues that should be documented in the release notes of the next release.Marks issues that should be documented in the release notes of the next release.

relnotes-tracking-issueMarks issues tracking what text to put in release notes.Marks issues tracking what text to put in release notes.

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.

#148145 In rust-lang/rust;

· rustbot opened on Oct 26, 2025

"Struct is never constructed" false positive (dead_code)

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.

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

L-dead_codeLint: dead_codeLint: dead_code

L-false-positiveLint: False positive (should not have fired).Lint: False positive (should not have fired).

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.

#148144 In rust-lang/rust;

· ijackson opened on Oct 26, 2025

Regression with <code>unused_imports</code> on macro used in documentation

A-attributesArea: Attributes (`#[…]`, `#![…]`)Area: Attributes (`#[…]`, `#![…]`)

A-macrosArea: All kinds of macros (custom derive, macro_rules!, proc macros, ..)Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

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

P-mediumMedium priorityMedium priority

regression-from-stable-to-nightlyPerformance or correctness regression from stable to nightly.Performance or correctness regression from stable to nightly.

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.

#148143 In rust-lang/rust;

· dylni opened on Oct 26, 2025

False positive ERROR [feature]: Not Set, when I use cargo test --features=[feature]

S-needs-reproStatus: This issue has no reproduction and needs a reproduction to make progress.Status: This issue has no reproduction and needs a reproduction to make progress.

Status: Open.

#148142 In rust-lang/rust;

· Razzwan opened on Oct 26, 2025

false positive <code>unused-extern-crates</code>

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.

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

D-invalid-suggestionDiagnostics: A structured suggestion resulting in incorrect code.Diagnostics: A structured suggestion resulting in incorrect code.

L-false-positiveLint: False positive (should not have fired).Lint: False positive (should not have fired).

L-unused_extern_cratesLint: unused_extern_cratesLint: unused_extern_crates

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.

#148140 In rust-lang/rust;

· matthiaskrgr opened on Oct 26, 2025

ICE <code>adjust mode unimplemented for ConstBlock</code>

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

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

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.

Status: Open.

#148138 In rust-lang/rust;

· matthiaskrgr opened on Oct 26, 2025

Audit what compiletest does with revisions in auxiliaries

A-compiletestArea: The compiletest test runnerArea: The compiletest test runner

A-compiletest-directivesArea: compiletest directivesArea: compiletest directives

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

E-needs-investigationCall for partcipation: This issues needs some investigation to determine current statusCall for partcipation: This issues needs some investigation to determine current status

T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

Status: Open.

#148133 In rust-lang/rust;

· jieyouxu opened on Oct 26, 2025

<code>./x test mir-opt</code> does not rebuild sysroot when rustc changes

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.

T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

Status: Open.

#148132 In rust-lang/rust;

· RalfJung opened on Oct 26, 2025

warning: corrupt incremental compilation artifact found at

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.

#148130 In rust-lang/rust;

· Razzwan opened on Oct 26, 2025

ICE: xx has parameters, but no args were provided in instantiate

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.

#148128 In rust-lang/rust;

· rucsesec opened on Oct 26, 2025

Cannot build rust stdlib for VxWorks

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

O-vxworksTarget: when they made us, they called us Curiosity, and Spirit, and told us to tell you helloTarget: when they made us, they called us Curiosity, and Spirit, and told us to tell you hello

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

Status: Open.

#148125 In rust-lang/rust;

· hax0kartik opened on Oct 26, 2025