1 files changed, 9 insertions, 0 deletions
diff --git a/src/test/ui/lint/unused/unused-mut-warning-captured-var.rs b/src/test/ui/lint/unused/unused-mut-warning-captured-var.rs
new file mode 100644
index 000000000..3119d83a0
--- /dev/null
+++ b/src/test/ui/lint/unused/unused-mut-warning-captured-var.rs
@@ -0,0 +1,9 @@
+// run-rustfix
+
+#![forbid(unused_mut)]
+
+fn main() {
+    let mut x = 1;
+    //~^ ERROR: variable does not need to be mutable
+    (move|| { println!("{}", x); })();
+}