1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/mut/mut-pattern-mismatched.rs b/src/test/ui/mut/mut-pattern-mismatched.rs
new file mode 100644
index 000000000..700261fe4
--- /dev/null
+++ b/src/test/ui/mut/mut-pattern-mismatched.rs
@@ -0,0 +1,20 @@
+fn main() {
+    let foo = &mut 1;
+
+    // (separate lines to ensure the spans are accurate)
+
+     let &_ //~  ERROR mismatched types
+            //~| expected mutable reference `&mut {integer}`
+            //~| found reference `&_`
+            //~| types differ in mutability
+        = foo;
+    let &mut _ = foo;
+
+    let bar = &1;
+    let &_ = bar;
+    let &mut _ //~  ERROR mismatched types
+               //~| expected reference `&{integer}`
+               //~| found mutable reference `&mut _`
+               //~| types differ in mutability
+         = bar;
+}