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compiler and language documentation disagree on lifetime extension for array expressions

A-arrayArea: `[T; N]`Area: `[T; N]`

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-temporary-lifetime-extensionArea: temporary lifetime extensionArea: temporary lifetime extension

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

I-lang-nominatedNominated for discussion during a lang team meeting.Nominated for discussion during a lang team meeting.

P-lang-drag-2Lang team prioritization drag level 2.https://rust-lang.zulipchat.com/#narrow/channel/410516-t-lang.Lang team prioritization drag level 2.https://rust-lang.zulipchat.com/#narrow/channel/410516-t-lang.

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-langRelevant to the language teamRelevant to the language team

T-lang-docsRelevant to the lang-docs team.Relevant to the lang-docs team.

Status: Open.

#146092 In rust-lang/rust;

· dianne opened on Sep 1, 2025

In consts, values with destructors can be lifetime-extended into statics.

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

A-temporary-lifetime-extensionArea: temporary lifetime extensionArea: temporary lifetime extension

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

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-langRelevant to the language teamRelevant to the language team

Status: Open.

#145868 In rust-lang/rust;

· theemathas opened on Aug 26, 2025

<code>&amp;raw const</code> can sometimes do temporary lifetime extension

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

A-temporary-lifetime-extensionArea: temporary lifetime extensionArea: temporary lifetime extension

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

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-langRelevant to the language teamRelevant to the language team

Status: Open.

#145813 In rust-lang/rust;

· theemathas opened on Aug 24, 2025

Lifetime extension in consts/statics sometimes makes *less* code compile

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

A-constant-promotionArea: constant promotionArea: constant promotion

A-lifetimesArea: Lifetimes / regionsArea: Lifetimes / regions

A-temporary-lifetime-extensionArea: temporary lifetime extensionArea: temporary lifetime extension

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

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-langRelevant to the language teamRelevant to the language team

Status: Open.

#143129 In rust-lang/rust;

· RalfJung opened on Jun 28, 2025

ICE from using <code>super let</code> and <code>&amp;raw</code> in <code>const</code>

A-temporary-lifetime-extensionArea: temporary lifetime extensionArea: temporary lifetime extension

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

F-super_letit's super, let's go!it's super, let's go!

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.

#142229 In rust-lang/rust;

· theemathas opened on Jun 9, 2025