1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/lint/unused/lint-unused-mut-self.rs b/src/test/ui/lint/unused/lint-unused-mut-self.rs
new file mode 100644
index 000000000..70736ce21
--- /dev/null
+++ b/src/test/ui/lint/unused/lint-unused-mut-self.rs
@@ -0,0 +1,14 @@
+// run-rustfix
+
+#![allow(unused_assignments)]
+#![allow(unused_variables)]
+#![allow(dead_code)]
+#![deny(unused_mut)]
+
+struct Foo;
+impl Foo {
+    fn foo(mut self) {} //~ ERROR: variable does not need to be mutable
+    fn bar(mut self: Box<Foo>) {} //~ ERROR: variable does not need to be mutable
+}
+
+fn main() {}