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Auto merge of #90463 - matthiaskrgr:rollup-eljk9vo, r=matthiaskrgr

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Rollup of 8 pull requests

Successful merges:

 - #89826 (Feature gate + make must_not_suspend allow-by-default)
 - #89929 (Handling submodule update failures more gracefully from x.py)
 - #90333 (rustdoc: remove flicker during page load)
 - #90349 (Fix rare ICE during typeck in rustdoc scrape_examples)
 - #90398 (Document `doc(keyword)` unstable attribute)
 - #90441 (Test that promotion follows references when looking for drop)
 - #90450 (Remove `rustc_hir::hir_id::HirIdVec`)
 - #90452 (Remove unnecessary `Option` from `promote_candidate` return type)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2021-11-01 14:00:08 +00:00
commit e9b0d99259
31 changed files with 294 additions and 123 deletions
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4
compiler/rustc_lint_defs/src/builtin.rs
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@ -323,6 +323,7 @@ declare_lint! {
///
/// ```rust
/// #![feature(must_not_suspend)]
/// #![warn(must_not_suspend)]
///
/// #[must_not_suspend]
/// struct SyncThing {}
@ -349,8 +350,9 @@ declare_lint! {
/// `MutexGuard`'s)
///
pub MUST_NOT_SUSPEND,
Warn,
Allow,
"use of a `#[must_not_suspend]` value across a yield point",
@feature_gate = rustc_span::symbol::sym::must_not_suspend;
}
declare_lint! {