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, 24 insertions, 0 deletions

diff --git a/src/test/ui/error-codes/E0520.stderr b/src/test/ui/error-codes/E0520.stderr
new file mode 100644
index 000000000..65ebfcdbe
--- /dev/null
+++ b/src/test/ui/error-codes/E0520.stderr
@@ -0,0 +1,24 @@
+warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
+  --> $DIR/E0520.rs:1:12
+   |
+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[E0520]: `fly` specializes an item from a parent `impl`, but that item is not marked `default`
+  --> $DIR/E0520.rs:17:5
+   |
+LL | impl<T: Clone> SpaceLlama for T {
+   | ------------------------------- parent `impl` is here
+...
+LL |     default fn fly(&self) {}
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^ cannot specialize default item `fly`
+   |
+   = note: to specialize, `fly` in the parent `impl` must be marked `default`
+
+error: aborting due to previous error; 1 warning emitted
+
+For more information about this error, try `rustc --explain E0520`.