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diagnostics: pin_ergonomics: unused_mut spans are wrong, would destroy 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-imprecise-spansDiagnostics: spans don't point to exactly the erroneous codeDiagnostics: spans don't point to exactly the erroneous code

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

L-unused_mutLint: unused_mutLint: unused_mut

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.

#142077 In rust-lang/rust;

· matthiaskrgr opened on Jun 5, 2025

ICE: <code>Failed to normalize &amp;'{erased} mut Alias(Opaque</code>

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

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

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.

#141850 In rust-lang/rust;

· matthiaskrgr opened on Jun 1, 2025

Parse <code>pin</code>ned local variable declarations

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

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.

Status: Open (in progress).

rust-lang/rustnumber 135631

#135631 In rust-lang/rust;

· frank-king opened on Jan 17, 2025

Tracking issue for pin ergonomics

B-experimentalBlocker: In-tree experiment; RFC pending, not yet approved or unneeded (requires FCP to stabilize).Blocker: In-tree experiment; RFC pending, not yet approved or unneeded (requires FCP to stabilize).

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

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

T-langRelevant to the language teamRelevant to the language team

Status: Open.

Tracking Issue

#130494 In rust-lang/rust;

· traviscross opened on Sep 17, 2024