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-rw-r--r--src/libcore/convert.rs5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libcore/convert.rs b/src/libcore/convert.rs
index 71edea561b8..f639309db87 100644
--- a/src/libcore/convert.rs
+++ b/src/libcore/convert.rs
@@ -554,6 +554,11 @@ impl<T> From<T> for T {
     fn from(t: T) -> T { t }
 }
 
+/// **Stability note:** This impl does not yet exist, but we are
+/// "reserving space" to add it in the future. See
+/// [rust-lang/rust#64715][#64715] for details.
+///
+/// [#64715]: https://github.com/rust-lang/rust/issues/64715
 #[stable(feature = "convert_infallible", since = "1.34.0")]
 #[cfg(not(boostrap_stdarch_ignore_this))]
 #[rustc_reservation_impl="permitting this impl would forbid us from adding \