1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/str-concat-on-double-ref.rs b/src/test/ui/str-concat-on-double-ref.rs
new file mode 100644
index 00000000000..f85422f76d4
--- /dev/null
+++ b/src/test/ui/str-concat-on-double-ref.rs
@@ -0,0 +1,18 @@
+// Copyright 2012-2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+fn main() {
+    let a: &String = &"1".to_owned();
+    let b: &str = &"2";
+    let c = a + b;
+    //~^ ERROR binary operation `+` cannot be applied to type `&std::string::String`
+    //~| NOTE an implementation of `std::ops::Add` might be missing for `&std::string::String`
+    println!("{:?}", c);
+}