1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/suggestions/format-borrow.rs b/tests/ui/suggestions/format-borrow.rs
new file mode 100644
index 00000000000..599a79fc08a
--- /dev/null
+++ b/tests/ui/suggestions/format-borrow.rs
@@ -0,0 +1,10 @@
+fn main() {
+    let a: String = &String::from("a");
+    //~^ ERROR mismatched types
+    let b: String = &format!("b");
+    //~^ ERROR mismatched types
+    let c: String = &mut format!("c");
+    //~^ ERROR mismatched types
+    let d: String = &mut (format!("d"));
+    //~^ ERROR mismatched types
+}