1 files changed, 13 insertions, 0 deletions
diff --git a/tests/ui/span/issue-11925.rs b/tests/ui/span/issue-11925.rs
new file mode 100644
index 000000000..cac9fd5bf
--- /dev/null
+++ b/tests/ui/span/issue-11925.rs
@@ -0,0 +1,13 @@
+#![feature(unboxed_closures, tuple_trait)]
+
+fn to_fn_once<A:std::marker::Tuple,F:FnOnce<A>>(f: F) -> F { f }
+
+fn main() {
+    let r = {
+        let x: Box<_> = Box::new(42);
+        let f = to_fn_once(move|| &x); //~ ERROR cannot return reference to local data `x`
+        f()
+    };
+
+    drop(r);
+}