1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/nll/mutating_references.rs b/src/test/ui/nll/mutating_references.rs
new file mode 100644
index 000000000..eb46b30b6
--- /dev/null
+++ b/src/test/ui/nll/mutating_references.rs
@@ -0,0 +1,24 @@
+// run-pass
+
+struct List<T> {
+    value: T,
+    next: Option<Box<List<T>>>,
+}
+
+fn to_refs<T>(mut list: &mut List<T>) -> Vec<&mut T> {
+    let mut result = vec![];
+    loop {
+        result.push(&mut list.value);
+        if let Some(n) = list.next.as_mut() {
+            list = n;
+        } else {
+            return result;
+        }
+    }
+}
+
+fn main() {
+    let mut list = List { value: 1, next: None };
+    let vec = to_refs(&mut list);
+    assert_eq!(vec![&mut 1], vec);
+}