Auto merge of #142795 - Kobzol:rollup-vvnnjno, r=Kobzol

Rollup of 10 pull requests

Successful merges:

 - rust-lang/rust#142629 (Add config builder for bootstrap tests)
 - rust-lang/rust#142715 (correct template for `#[align]` attribute)
 - rust-lang/rust#142720 (De-dup common code from `ExternalCrate` methods)
 - rust-lang/rust#142736 (add issue template for rustdoc)
 - rust-lang/rust#142743 (rustc-dev-guide subtree update)
 - rust-lang/rust#142744 (Add a mailmap entry for y21)
 - rust-lang/rust#142758 (Make sure to rebuild rustdoc if `src/rustdoc-json-types` is changed)
 - rust-lang/rust#142764 (Convert `ilog(10)` to `ilog10()`)
 - rust-lang/rust#142767 (Some symbol and PathRoot cleanups)
 - rust-lang/rust#142769 (remove equivalent new method on context)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

clippy_lints/src/bool_assert_comparison.rs

@@ -56,7 +56,7 @@ fn is_impl_not_trait_with_bool_out<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -
         .and_then(|trait_id| {
             cx.tcx.associated_items(trait_id).find_by_ident_and_kind(
                 cx.tcx,
-                Ident::from_str("Output"),
+                Ident::with_dummy_span(sym::Output),
                 ty::AssocTag::Type,
                 trait_id,
             )