1 files changed, 9 insertions, 0 deletions
diff --git a/src/test/ui/error-codes/E0503.rs b/src/test/ui/error-codes/E0503.rs
new file mode 100644
index 000000000..88f5fc1bb
--- /dev/null
+++ b/src/test/ui/error-codes/E0503.rs
@@ -0,0 +1,9 @@
+fn main() {
+    let mut value = 3;
+    let _borrow = &mut value;
+    let _sum = value + 1; //~ ERROR E0503
+    _borrow.use_mut();
+}
+
+trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { }  }
+impl<T> Fake for T { }