1 files changed, 8 insertions, 0 deletions
diff --git a/src/test/ui/did_you_mean/issue-34337.rs b/src/test/ui/did_you_mean/issue-34337.rs
new file mode 100644
index 000000000..e89eda33f
--- /dev/null
+++ b/src/test/ui/did_you_mean/issue-34337.rs
@@ -0,0 +1,8 @@
+fn get(key: &mut String) { }
+
+fn main() {
+    let mut v: Vec<String> = Vec::new();
+    let ref mut key = v[0];
+    get(&mut key); //~ ERROR cannot borrow
+    //~| HELP try removing `&mut` here
+}