Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/src/test/ui/specialization/defaultimpl/specialization-wfcheck.stderr b/src/test/ui/specialization/defaultimpl/specialization-wfcheck.stderr
new file mode 100644
index 000000000..a8fdbc528
--- /dev/null
+++ b/src/test/ui/specialization/defaultimpl/specialization-wfcheck.stderr
@@ -0,0 +1,29 @@
+warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
+  --> $DIR/specialization-wfcheck.rs:3:12
+   |
+LL | #![feature(specialization)]
+   |            ^^^^^^^^^^^^^^
+   |
+   = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
+   = help: consider using `min_specialization` instead, which is more stable and complete
+
+error[E0277]: the trait bound `U: Eq` is not satisfied
+  --> $DIR/specialization-wfcheck.rs:7:17
+   |
+LL | default impl<U> Foo<'static, U> for () {}
+   |                 ^^^^^^^^^^^^^^^ the trait `Eq` is not implemented for `U`
+   |
+note: required by a bound in `Foo`
+  --> $DIR/specialization-wfcheck.rs:5:18
+   |
+LL | trait Foo<'a, T: Eq + 'a> { }
+   |                  ^^ required by this bound in `Foo`
+help: consider restricting type parameter `U`
+   |
+LL | default impl<U: std::cmp::Eq> Foo<'static, U> for () {}
+   |               ++++++++++++++
+
+error: aborting due to previous error; 1 warning emitted
+
+For more information about this error, try `rustc --explain E0277`.