Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/ui/specialization/issue-38091.stderr b/tests/ui/specialization/issue-38091.stderr
new file mode 100644
index 000000000..f2210a407
--- /dev/null
+++ b/tests/ui/specialization/issue-38091.stderr
@@ -0,0 +1,25 @@
+warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
+  --> $DIR/issue-38091.rs:1:12
+   |
+LL | #![feature(specialization)]
+   |            ^^^^^^^^^^^^^^
+   |
+   = 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
+   = note: `#[warn(incomplete_features)]` on by default
+
+error[E0277]: the trait bound `(): Valid` is not satisfied
+  --> $DIR/issue-38091.rs:12:23
+   |
+LL |     default type Ty = ();
+   |                       ^^ the trait `Valid` is not implemented for `()`
+   |
+note: required by a bound in `Iterate::Ty`
+  --> $DIR/issue-38091.rs:5:14
+   |
+LL |     type Ty: Valid;
+   |              ^^^^^ required by this bound in `Iterate::Ty`
+
+error: aborting due to previous error; 1 warning emitted
+
+For more information about this error, try `rustc --explain E0277`.