1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/box/unit/unique-object-noncopyable.rs b/tests/ui/box/unit/unique-object-noncopyable.rs
new file mode 100644
index 000000000..2c40dfc7a
--- /dev/null
+++ b/tests/ui/box/unit/unique-object-noncopyable.rs
@@ -0,0 +1,25 @@
+trait Foo {
+    fn f(&self);
+}
+
+struct Bar {
+    x: isize,
+}
+
+impl Drop for Bar {
+    fn drop(&mut self) {}
+}
+
+impl Foo for Bar {
+    fn f(&self) {
+        println!("hi");
+    }
+}
+
+
+
+fn main() {
+    let x = Box::new(Bar { x: 10 });
+    let y: Box<dyn Foo> = x as Box<dyn Foo>;
+    let _z = y.clone(); //~ ERROR the method
+}