1 files changed, 12 insertions, 0 deletions
diff --git a/src/test/ui/traits/issue-65673.rs b/src/test/ui/traits/issue-65673.rs
new file mode 100644
index 000000000..e5c2fccb2
--- /dev/null
+++ b/src/test/ui/traits/issue-65673.rs
@@ -0,0 +1,12 @@
+#![feature(trait_alias)] // Enabled to reduce stderr output, but can be triggered even if disabled.
+trait Trait {}
+trait WithType {
+    type Ctx;
+}
+trait Alias<T> = where T: Trait;
+
+impl<T> WithType for T {
+    type Ctx = dyn Alias<T>;
+    //~^ ERROR at least one trait is required for an object type [E0224]
+}
+fn main() {}