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ignored lifetime constraints in type annotations #115175

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aliemjay opened this issue Aug 24, 2023 · 2 comments
Open

ignored lifetime constraints in type annotations #115175

aliemjay opened this issue Aug 24, 2023 · 2 comments
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A-NLL Area: Non-lexical lifetimes (NLL) C-bug Category: This is a bug. NLL-sound Working towards the "invalid code does not compile" goal P-medium Medium priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-compiler 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.

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@aliemjay
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The following compiles since the full transition to NLL in v1.63, although it shouldn't:

struct Static<T: 'static>(T);
fn test<T>() {
    let _ = None::<Static<T>>;
}
@rustbot rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Aug 24, 2023
@aliemjay aliemjay added T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. regression-from-stable-to-stable Performance or correctness regression from one stable version to another. A-NLL Area: Non-lexical lifetimes (NLL) C-bug Category: This is a bug. NLL-sound Working towards the "invalid code does not compile" goal T-types Relevant to the types team, which will review and decide on the PR/issue. labels Aug 24, 2023
@rustbot rustbot added the I-prioritize Issue: Indicates that prioritization has been requested for this issue. label Aug 24, 2023
@aliemjay aliemjay removed the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Aug 24, 2023
@apiraino
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bisected to

commit[0] 2022-06-06: Auto merge of #97730 - flip1995:clippyup, r=Manishearth
  commit[1] 2022-06-06: Auto merge of #97809 - matthiaskrgr:rollup-ajyvjd3, r=matthiaskrgr
  commit[2] 2022-06-07: Auto merge of #97801 - RalfJung:miri, r=RalfJung
  commit[3] 2022-06-07: Auto merge of #95565 - jackh726:remove-borrowck-mode, r=nikomatsakis
  commit[4] 2022-06-07: Auto merge of #97512 - scottmcm:add-coldcc, r=nagisa,lcnr
  commit[5] 2022-06-07: Auto merge of #97825 - Dylan-DPC:rollup-ya51k1k, r=Dylan-DPC
  commit[6] 2022-06-07: Auto merge of #97835 - Dylan-DPC:rollup-0ae3pwp, r=Dylan-DPC

closest seems (unsurprisingly) #95565?

@apiraino
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WG-prioritization assigning priority (Zulip discussion).

@rustbot label -I-prioritize +P-medium

@rustbot rustbot added P-medium Medium priority and removed I-prioritize Issue: Indicates that prioritization has been requested for this issue. labels Sep 12, 2023
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Labels
A-NLL Area: Non-lexical lifetimes (NLL) C-bug Category: This is a bug. NLL-sound Working towards the "invalid code does not compile" goal P-medium Medium priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-compiler 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.
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@apiraino @aliemjay @rustbot