Correct typo

RELEASES.md

@@ -1442,7 +1442,7 @@ Compatibility Notes
 - [Mixing Option and Result via `?` is no longer permitted in closures for inferred types.][86831]
 - [Previously unsound code is no longer permitted where different constructors in branches
   could require different lifetimes.][85574]
-- As previously mentioned the [`std::arch` intrinsic now uses stricter const checking][83278]
+- As previously mentioned the [`std::arch` intrinsics now uses stricter const checking][83278]
   than before and may reject some previously accepted code.
 - [`i128` multiplication on Cortex M0+ platforms currently unconditionally causes overflow
    when compiled with `codegen-units = 1`.][86063]

compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs

@@ -203,7 +203,7 @@ pub(crate) fn codegen_intrinsic_call<'tcx>(
             sym::transmute => {
                 crate::base::codegen_panic(fx, "Transmuting to uninhabited type.", source_info);
             }
-            _ => unimplemented!("unsupported intrinsics {}", intrinsic),
+            _ => unimplemented!("unsupported intrinsic {}", intrinsic),
         }
         return;
     };

library/core/src/slice/mod.rs

@@ -2321,7 +2321,7 @@ pub fn strip_suffix<P: SlicePattern<Item = T> + ?Sized>(&self, suffix: &P) -> Op
     }
 
     /// Binary searches this slice for a given element.
-    /// This behaves similar to [`contains`] if this slice is sorted.
+    /// This behaves similarly to [`contains`] if this slice is sorted.
     ///
     /// If the value is found then [`Result::Ok`] is returned, containing the
     /// index of the matching element. If there are multiple matches, then any

library/std/src/sys/windows/cmath.rs

@@ -44,7 +44,7 @@ mod shims {
 }
 
 // On 32-bit x86 MSVC these functions aren't defined, so we just define shims
-// which promote everything for f64, perform the calculation, and then demote
+// which promote everything to f64, perform the calculation, and then demote
 // back to f32. While not precisely correct should be "correct enough" for now.
 #[cfg(all(target_env = "msvc", target_arch = "x86"))]
 mod shims {