1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/unsized/issue-75707.rs b/src/test/ui/unsized/issue-75707.rs
new file mode 100644
index 000000000..9f04cdbb9
--- /dev/null
+++ b/src/test/ui/unsized/issue-75707.rs
@@ -0,0 +1,17 @@
+pub trait Callback {
+    fn cb();
+}
+
+pub trait Processing {
+    type Call: Callback;
+}
+
+fn f<P: Processing + ?Sized>() {
+    P::Call::cb();
+}
+
+fn main() {
+    struct MyCall;
+    f::<dyn Processing<Call = MyCall>>();
+    //~^ ERROR: the trait bound `MyCall: Callback` is not satisfied
+}