1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/nll/issue-46589.stderr b/src/test/ui/nll/issue-46589.stderr
new file mode 100644
index 000000000..60ef3f7b8
--- /dev/null
+++ b/src/test/ui/nll/issue-46589.stderr
@@ -0,0 +1,15 @@
+error[E0499]: cannot borrow `**other` as mutable more than once at a time
+  --> $DIR/issue-46589.rs:23:21
+   |
+LL |         *other = match (*other).get_self() {
+   |                        ------------------- first mutable borrow occurs here
+LL |             Some(s) => s,
+LL |             None => (*other).new_self()
+   |                     ^^^^^^^^^^^^^^^^^^^
+   |                     |
+   |                     second mutable borrow occurs here
+   |                     first borrow later used here
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0499`.