1 files changed, 10 insertions, 0 deletions
diff --git a/third_party/rust/thiserror/tests/ui/missing-fmt.rs b/third_party/rust/thiserror/tests/ui/missing-fmt.rs
new file mode 100644
index 0000000000..d52fbdf0d9
--- /dev/null
+++ b/third_party/rust/thiserror/tests/ui/missing-fmt.rs
@@ -0,0 +1,10 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum Error {
+    #[error("...")]
+    A(usize),
+    B(usize),
+}
+
+fn main() {}