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-rw-r--r--src/test/compile-fail/vec-concat-bug.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/test/compile-fail/vec-concat-bug.rs b/src/test/compile-fail/vec-concat-bug.rs
index 510bef1cae0..b75623d6233 100644
--- a/src/test/compile-fail/vec-concat-bug.rs
+++ b/src/test/compile-fail/vec-concat-bug.rs
@@ -4,6 +4,7 @@ fn concat<T: copy>(v: [const [const T]]) -> [T] {
     // Earlier versions of our type checker accepted this:
     vec::iter(v) {|&&inner: [T]|
         //!^ ERROR values differ in mutability
+        //!^^ ERROR values differ in mutability
         r += inner;
     }