Auto merge of #141379 - matthiaskrgr:rollup-g1cz0ic, r=matthiaskrgr

Rollup of 6 pull requests

Successful merges:

 - #140431 (dont handle bool transmute)
 - #140868 (rustdoc: Fix links with inline code in trait impl docs)
 - #141323 (Add bors environment to CI)
 - #141337 (bump stdarch)
 - #141364 (rustdoc-json: Remove false docs and add test for inline attribute)
 - #141370 (add doc alias `replace_first` for `str::replacen`)

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

1 files changed, 1 insertions, 2 deletions

diff --git a/compiler/rustc_mir_transform/src/check_unnecessary_transmutes.rs b/compiler/rustc_mir_transform/src/check_unnecessary_transmutes.rs
index 8da17a056e3..0514de3ea13 100644
--- a/compiler/rustc_mir_transform/src/check_unnecessary_transmutes.rs
+++ b/compiler/rustc_mir_transform/src/check_unnecessary_transmutes.rs
@@ -9,6 +9,7 @@ use crate::errors::UnnecessaryTransmute as Error;
 
 /// Check for transmutes that overlap with stdlib methods.
 /// For example, transmuting `[u8; 4]` to `u32`.
+/// We chose not to lint u8 -> bool transmutes, see #140431
 pub(super) struct CheckUnnecessaryTransmutes;
 
 impl<'tcx> crate::MirLint<'tcx> for CheckUnnecessaryTransmutes {
@@ -98,8 +99,6 @@ impl<'a, 'tcx> UnnecessaryTransmuteChecker<'a, 'tcx> {
             (Uint(_), Float(ty)) => err(format!("{}::from_bits({arg})", ty.name_str())),
             // bool → { x8 }
             (Bool, Int(..) | Uint(..)) => err(format!("({arg}) as {}", fn_sig.output())),
-            // u8 → bool
-            (Uint(_), Bool) => err(format!("({arg} == 1)")),
             _ => return None,
         })
     }