1 files changed, 14 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-12127.rs b/src/test/ui/issues/issue-12127.rs
new file mode 100644
index 000000000..bb2c27345
--- /dev/null
+++ b/src/test/ui/issues/issue-12127.rs
@@ -0,0 +1,14 @@
+#![feature(box_syntax, unboxed_closures)]
+
+fn to_fn_once<A,F:FnOnce<A>>(f: F) -> F { f }
+fn do_it(x: &isize) { }
+
+fn main() {
+    let x: Box<_> = box 22;
+    let f = to_fn_once(move|| do_it(&*x));
+    to_fn_once(move|| {
+        f();
+        f();
+        //~^ ERROR: use of moved value: `f`
+    })()
+}