1 files changed, 13 insertions, 0 deletions
diff --git a/tests/ui/borrowck/regions-escape-bound-fn.rs b/tests/ui/borrowck/regions-escape-bound-fn.rs
new file mode 100644
index 000000000..f896ae7bd
--- /dev/null
+++ b/tests/ui/borrowck/regions-escape-bound-fn.rs
@@ -0,0 +1,13 @@
+fn with_int<F>(f: F)
+where
+    F: FnOnce(&isize),
+{
+    let x = 3;
+    f(&x);
+}
+
+fn main() {
+    let mut x: Option<&isize> = None;
+    with_int(|y| x = Some(y));
+    //~^ ERROR borrowed data escapes outside of closure
+}