1 files changed, 11 insertions, 0 deletions
diff --git a/src/test/ui/error-codes/E0506.rs b/src/test/ui/error-codes/E0506.rs
new file mode 100644
index 000000000..062a44a52
--- /dev/null
+++ b/src/test/ui/error-codes/E0506.rs
@@ -0,0 +1,11 @@
+struct FancyNum {
+    num: u8,
+}
+
+fn main() {
+    let mut fancy_num = FancyNum { num: 5 };
+    let fancy_ref = &fancy_num;
+    fancy_num = FancyNum { num: 6 }; //~ ERROR [E0506]
+
+    println!("Num: {}, Ref: {}", fancy_num.num, fancy_ref.num);
+}