1 files changed, 15 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-12028.stderr b/src/test/ui/issues/issue-12028.stderr
new file mode 100644
index 000000000..8d6b81c24
--- /dev/null
+++ b/src/test/ui/issues/issue-12028.stderr
@@ -0,0 +1,15 @@
+error[E0284]: type annotations needed
+  --> $DIR/issue-12028.rs:27:14
+   |
+LL |         self.input_stream(&mut stream);
+   |              ^^^^^^^^^^^^
+   |
+   = note: cannot satisfy `<_ as StreamHasher>::S == <H as StreamHasher>::S`
+help: try using a fully qualified path to specify the expected types
+   |
+LL |         <u8 as StreamHash<H>>::input_stream(self, &mut stream);
+   |         ++++++++++++++++++++++++++++++++++++    ~
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0284`.