1 files changed, 16 insertions, 0 deletions
diff --git a/tests/ui/nll/issue-52663-trait-object.rs b/tests/ui/nll/issue-52663-trait-object.rs
new file mode 100644
index 00000000000..f6bbb2d14b0
--- /dev/null
+++ b/tests/ui/nll/issue-52663-trait-object.rs
@@ -0,0 +1,16 @@
+trait Foo { fn get(&self); }
+
+impl<A> Foo for A {
+    fn get(&self) { }
+}
+
+
+
+fn main() {
+    let _ = {
+        let tmp0 = 3;
+        let tmp1 = &tmp0;
+        Box::new(tmp1) as Box<dyn Foo + '_>
+    };
+    //~^^^ ERROR `tmp0` does not live long enough
+}