1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/compile-fail-migration/coherence-default-trait-impl.rs b/src/test/ui/compile-fail-migration/coherence-default-trait-impl.rs
new file mode 100644
index 00000000000..751d0a14c57
--- /dev/null
+++ b/src/test/ui/compile-fail-migration/coherence-default-trait-impl.rs
@@ -0,0 +1,25 @@
+// Copyright 2015 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.
+
+#![feature(optin_builtin_traits)]
+
+auto trait MySafeTrait {}
+
+struct Foo;
+
+unsafe impl MySafeTrait for Foo {}
+//~^ ERROR implementing the trait `MySafeTrait` is not unsafe
+
+unsafe auto trait MyUnsafeTrait {}
+
+impl MyUnsafeTrait for Foo {}
+//~^ ERROR the trait `MyUnsafeTrait` requires an `unsafe impl` declaration
+
+fn main() {}