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Draft release notes for 1.91
#147010 ·
Mark-Simulacrum
opened
on Sep 25, 2025
15
Issues
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state
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open
label
:
T-compiler
state:open label:T-compiler
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Open
Closed
rewrite outlives placeholder constraints to outlives static when handling opaque types
beta-nominated
Nominated for backporting to the compiler in the beta channel.
Nominated for backporting to the compiler in the beta channel.
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
Status: Awaiting review from the assignee but also interested parties.
T-compiler
Relevant 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/rust
number 147566
#147566
In rust-lang/rust;
·
BoxyUwU
opened
on Oct 10, 2025
coercions reviews/misc whatevers
S-waiting-on-author
Status: This is awaiting some action (such as code changes or more information) from the author.
Status: This is awaiting some action (such as code changes or more information) from the author.
T-compiler
Relevant 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: Draft (not ready).
rust-lang/rust
number 147565
#147565
In rust-lang/rust;
·
BoxyUwU
opened
on Oct 10, 2025
Misleading "Lifetime Must Outlive x" Diagnostic
A-diagnostics
Area: Messages for errors, warnings, and lints
Area: Messages for errors, warnings, and lints
A-lifetimes
Area: Lifetimes / regions
Area: Lifetimes / regions
T-compiler
Relevant 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.
#147564
In rust-lang/rust;
·
Philogy
opened
on Oct 10, 2025
Coherence rejects otherwise valid impl
A-associated-items
Area: Associated items (types, constants & functions)
Area: Associated items (types, constants & functions)
A-coherence
Area: Coherence
Area: Coherence
C-bug
Category: This is a bug.
Category: This is a bug.
T-compiler
Relevant 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-types
Relevant 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.
#147554
In rust-lang/rust;
·
weiznich
opened
on Oct 10, 2025
Replace <code>LLVMRustContextCreate</code> with normal LLVM-C API calls
A-LLVM
Area: 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.
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
Status: Awaiting review from the assignee but also interested parties.
T-compiler
Relevant 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/rust
number 147549
#147549
In rust-lang/rust;
·
AMS21
opened
on Oct 10, 2025
Fix ICE for never pattern as closure parameters
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
Status: Awaiting review from the assignee but also interested parties.
T-compiler
Relevant 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/rust
number 147548
#147548
In rust-lang/rust;
·
chenyukang
opened
on Oct 10, 2025
Suppress unused_parens for labeled break
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
Status: Awaiting review from the assignee but also interested parties.
T-compiler
Relevant 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/rust
number 147546
#147546
In rust-lang/rust;
·
chenyukang
opened
on Oct 10, 2025
Add <code>cargo_cfg_target_family_multivalued</code> lint
A-cfg
Area: `cfg` conditional compilation
Area: `cfg` conditional compilation
A-lints
Area: Lints (warnings about flaws in source code) such as unused_mut.
Area: Lints (warnings about flaws in source code) such as unused_mut.
I-lang-nominated
Nominated for discussion during a lang team meeting.
Nominated for discussion during a lang team meeting.
S-waiting-on-t-lang
Status: Awaiting decision from T-lang
Status: Awaiting decision from T-lang
T-compiler
Relevant 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-lang
Relevant to the language team
Relevant to the language team
Status: Open (in progress).
rust-lang/rust
number 147545
#147545
In rust-lang/rust;
·
madsmtm
opened
on Oct 10, 2025
Remove StatementKind::Deinit.
S-waiting-on-bors
Status: Waiting on bors to run and complete tests. Bors will change the label on completion.
Status: Waiting on bors to run and complete tests. Bors will change the label on completion.
T-clippy
Relevant to the Clippy team.
Relevant to the Clippy team.
T-compiler
Relevant 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-libs
Relevant 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 (in progress).
rust-lang/rust
number 147544
#147544
In rust-lang/rust;
·
cjgillot
opened
on Oct 10, 2025
cve-rs: Fix unsound lifetime extension in HRTB function pointer coercion
S-waiting-on-author
Status: This is awaiting some action (such as code changes or more information) from the author.
Status: This is awaiting some action (such as code changes or more information) from the author.
T-compiler
Relevant 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-types
Relevant 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 (in progress).
rust-lang/rust
number 147543
#147543
In rust-lang/rust;
·
kstrafe
opened
on Oct 10, 2025
Labeled break lint collides with unused parens lint
C-bug
Category: This is a bug.
Category: This is a bug.
L-break_with_label_and_loop
Lint: break_with_label_and_loop
Lint: break_with_label_and_loop
L-unused_parens
Lint: unused_parens
Lint: unused_parens
T-compiler
Relevant 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.
#147542
In rust-lang/rust;
·
jacob-greenfield
opened
on Oct 10, 2025
Change int-to-ptr transmute lowering back to inttoptr
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
Status: Awaiting review from the assignee but also interested parties.
T-compiler
Relevant 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/rust
number 147541
#147541
In rust-lang/rust;
·
saethlin
opened
on Oct 9, 2025
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