1 files changed, 6 insertions, 0 deletions
diff --git a/src/test/ui/inference/cannot-infer-closure.rs b/src/test/ui/inference/cannot-infer-closure.rs
new file mode 100644
index 000000000..1c350b18f
--- /dev/null
+++ b/src/test/ui/inference/cannot-infer-closure.rs
@@ -0,0 +1,6 @@
+fn main() {
+    let x = |a: (), b: ()| {
+        Err(a)?;
+        Ok(b) //~ ERROR type annotations needed
+    };
+}