1 files changed, 6 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-26641.rs b/tests/ui/issues/issue-26641.rs
new file mode 100644
index 000000000..e08edd0b5
--- /dev/null
+++ b/tests/ui/issues/issue-26641.rs
@@ -0,0 +1,6 @@
+// run-pass
+struct Parser<'a>(#[allow(unused_tuple_struct_fields)] Box<dyn FnMut(Parser) + 'a>);
+
+fn main() {
+    let _x = Parser(Box::new(|_|{}));
+}