remove internal_impls_macro feature

rust-lang · JonathanBrouwer · Jan 29, 2026 · Mar 17, 2026 · Feb 24, 2026 · Mar 16, 2026
commit aa7d812f348da3e330cf3b99ee4a5ec373f2a38b
diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs
@@ -107,7 +107,6 @@
 #![feature(core_intrinsics)]
 #![feature(coverage_attribute)]
 #![feature(disjoint_bitor)]
-#![feature(internal_impls_macro)]
 #![feature(link_cfg)]
 #![feature(offset_of_enum)]
 #![feature(panic_internals)]

diff --git a/library/core/src/marker.rs b/library/core/src/marker.rs
@@ -52,9 +52,6 @@ use crate::pin::UnsafePinned;
 ///         u32,
 /// }
 /// ```
-#[unstable(feature = "internal_impls_macro", issue = "none")]
-// Allow implementations of `UnsizedConstParamTy` even though std cannot use that feature.
-#[allow_internal_unstable(const_param_ty_trait)]
 macro marker_impls {
     ( $(#[$($meta:tt)*])* $Trait:ident for $({$($bounds:tt)*})? $T:ty $(, $($rest:tt)*)? ) => {
         $(#[$($meta)*])* impl< $($($bounds)*)? > $Trait for $T {}