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Tracking Issue for breaking lifetime changing raw pointer casts of trait objects

A-dyn-traitArea: trait objects, vtable layoutArea: trait objects, vtable layout

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

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-arbitrary_self_types`#![feature(arbitrary_self_types)]``#![feature(arbitrary_self_types)]`

F-derive_coerce_pointeeFeature: RFC 3621's oft-renamed implementationFeature: RFC 3621's oft-renamed implementation

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#141402 In rust-lang/rust;

· BoxyUwU opened on May 22, 2025

dubious <code>&amp;raw const|mut value</code> compile error

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

T-opsemRelevant to the opsem teamRelevant to the opsem team

Status: Open.

#139156 In rust-lang/rust;

· Paladynee opened on Mar 30, 2025

Document the contextual keyword <code>raw</code>

A-docsArea: Documentation for any part of the project, including the compiler, standard library, and toolsArea: Documentation for any part of the project, including the compiler, standard library, and tools

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

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.

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.

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.

#134447 In rust-lang/rust;

· CrazyboyQCD opened on Dec 18, 2024

unsafe { &amp;mut *x } vs &amp;mut unsafe { *x }

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

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

D-terseDiagnostics: An error or lint that doesn't give enough information about the problem at hand.Diagnostics: An error or lint that doesn't give enough information about the problem at hand.

Status: Open.

#132063 In rust-lang/rust;

· hkBst opened on Oct 23, 2024

Tracking issue for future-incompatibility lint <code>ptr_cast_add_auto_to_object</code>

A-dyn-traitArea: trait objects, vtable layoutArea: trait objects, vtable layout

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.

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

C-future-incompatibilityCategory: Future-incompatibility lintsCategory: Future-incompatibility lints

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-arbitrary_self_types`#![feature(arbitrary_self_types)]``#![feature(arbitrary_self_types)]`

F-derive_coerce_pointeeFeature: RFC 3621's oft-renamed implementationFeature: RFC 3621's oft-renamed implementation

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.

#127323 In rust-lang/rust;

· WaffleLapkin opened on Jul 4, 2024

False negative for trivial_casts with pointer

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.

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

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

P-mediumMedium priorityMedium priority

regression-from-stable-to-stablePerformance or correctness regression from one stable version to another.Performance or correctness regression from one stable version to another.

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.

#117187 In rust-lang/rust;

· Noratrieb opened on Oct 25, 2023

request: lint when raw pointer slicing implicitly creates a temporary reference

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.

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

A-sliceArea: `[T]`Area: `[T]`

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

T-opsemRelevant to the opsem teamRelevant to the opsem team

Status: Open.

#99437 In rust-lang/rust;

· RalfJung opened on Jul 18, 2022

Tracking Issue for <code>*mut [T]::split_at_mut</code>

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

A-sliceArea: `[T]`Area: `[T]`

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

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

Status: Open.

#95595 In rust-lang/rust;

· the8472 opened on Apr 2, 2022

CTFE: there is no way to compute the difference between two ptrs in the same allocation if they might be out-of-bounds

A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

T-opsemRelevant to the opsem teamRelevant to the opsem team

Status: Open.

#92512 In rust-lang/rust;

· RalfJung opened on Jan 3, 2022

Intra-doc link in <code>core</code> for a pointer method couldn't find <code>Self</code>

A-intra-doc-linksArea: Intra-doc links, the ability to link to items in docs by nameArea: Intra-doc links, the ability to link to items in docs by name

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

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.

#91204 In rust-lang/rust;

· scottmcm opened on Nov 24, 2021

MaybeUninit::fill_slice

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

A-sliceArea: `[T]`Area: `[T]`

C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.

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

Status: Open.

#91053 In rust-lang/rust;

· stepancheg opened on Nov 19, 2021

Can I create and use a <code>*mut</code> to an uninitialized local?

A-raw-pointersArea: raw pointers, MaybeUninit, NonNullArea: raw pointers, MaybeUninit, NonNull

Status: Open.

#90718 In rust-lang/rust;

· ecstatic-morse opened on Nov 9, 2021