1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/macros/derive-in-eager-expansion-hang.rs b/src/test/ui/macros/derive-in-eager-expansion-hang.rs
new file mode 100644
index 000000000..0729e14d5
--- /dev/null
+++ b/src/test/ui/macros/derive-in-eager-expansion-hang.rs
@@ -0,0 +1,14 @@
+// Regression test for the issue #44692
+
+macro_rules! hang { () => {
+    { //~ ERROR format argument must be a string literal
+        #[derive(Clone)]
+        struct S;
+
+        ""
+    }
+}}
+
+fn main() {
+    format_args!(hang!());
+}