diff --git a/src/libcore/convert.rs b/src/libcore/convert.rs
index f639309db8791..3cd2337ee59a5 100644
--- a/src/libcore/convert.rs
+++ b/src/libcore/convert.rs
@@ -560,7 +560,7 @@ impl<T> From<T> for T {
 ///
 /// [#64715]: https://github.com/rust-lang/rust/issues/64715
 #[stable(feature = "convert_infallible", since = "1.34.0")]
-#[cfg(not(boostrap_stdarch_ignore_this))]
+#[cfg(not(bootstrap))]
 #[rustc_reservation_impl="permitting this impl would forbid us from adding \
 `impl<T> From<!> for T` later; see rust-lang/rust#64715 for details"]
 impl<T> From<!> for T {
diff --git a/src/test/ui/traits/reservation-impls/reservation-impl-no-use.stderr b/src/test/ui/traits/reservation-impls/reservation-impl-no-use.stderr
index 8a86f53086dd5..0cd56b978f10c 100644
--- a/src/test/ui/traits/reservation-impls/reservation-impl-no-use.stderr
+++ b/src/test/ui/traits/reservation-impls/reservation-impl-no-use.stderr
@@ -1,11 +1,11 @@
 error[E0277]: the trait bound `(): MyTrait` is not satisfied
-  --> $DIR/reservation-impl-no-use.rs:12:5
+  --> $DIR/reservation-impl-no-use.rs:12:26
    |
 LL | trait MyTrait { fn foo(&self); }
    |                 -------------- required by `MyTrait::foo`
 ...
 LL |     <() as MyTrait>::foo(&());
-   |     ^^^^^^^^^^^^^^^^^^^^ the trait `MyTrait` is not implemented for `()`
+   |                          ^^^ the trait `MyTrait` is not implemented for `()`
    |
    = help: the following implementations were found:
              <() as MyTrait>