1 files changed, 12 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-51116.rs b/tests/ui/issues/issue-51116.rs
new file mode 100644
index 00000000000..4c21cbfc61d
--- /dev/null
+++ b/tests/ui/issues/issue-51116.rs
@@ -0,0 +1,12 @@
+fn main() {
+    let tiles = Default::default();
+    for row in &mut tiles {
+        for tile in row {
+            *tile = 0;
+            //~^ ERROR type annotations needed
+            //~| NOTE cannot infer type
+        }
+    }
+
+    let tiles: [[usize; 3]; 3] = tiles;
+}