add opt in attribute for stable-in-unstable items

tcdi · Jul 8, 2022 · d8a5f09 · d8a5f09
1 parent 022a077
commit d8a5f09
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/core/src/intrinsics.rs b/core/src/intrinsics.rs
@@ -1457,6 +1457,7 @@ extern "rust-intrinsic" {
     /// }
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
+    #[cfg_attr(not(bootstrap), rustc_allowed_through_unstable_modules)]
     #[rustc_const_stable(feature = "const_transmute", since = "1.56.0")]
     #[rustc_diagnostic_item = "transmute"]
     pub fn transmute<T, U>(e: T) -> U;