1 files changed, 22 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-44405.rs b/tests/ui/issues/issue-44405.rs
new file mode 100644
index 000000000..d404b9044
--- /dev/null
+++ b/tests/ui/issues/issue-44405.rs
@@ -0,0 +1,22 @@
+use std::ops::Index;
+
+struct Test;
+struct Container(Test);
+
+impl Test {
+    fn test(&mut self) {}
+}
+
+impl<'a> Index<&'a bool> for Container {
+    type Output = Test;
+
+    fn index(&self, _index: &'a bool) -> &Test {
+        &self.0
+    }
+}
+
+fn main() {
+    let container = Container(Test);
+    let mut val = true;
+    container[&mut val].test(); //~ ERROR: cannot borrow data
+}