1 files changed, 8 insertions, 0 deletions
diff --git a/src/test/ui/suggestions/suggest-box.rs b/src/test/ui/suggestions/suggest-box.rs
new file mode 100644
index 000000000..e680a61db
--- /dev/null
+++ b/src/test/ui/suggestions/suggest-box.rs
@@ -0,0 +1,8 @@
+// run-rustfix
+
+fn main() {
+    let _x: Box<dyn Fn() -> Result<(), ()>> = || { //~ ERROR mismatched types
+        Err(())?;
+        Ok(())
+    };
+}