1 files changed, 9 insertions, 0 deletions
diff --git a/src/test/ui/traits/negative-impls/positive-specializes-negative.rs b/src/test/ui/traits/negative-impls/positive-specializes-negative.rs
new file mode 100644
index 000000000..a06b35765
--- /dev/null
+++ b/src/test/ui/traits/negative-impls/positive-specializes-negative.rs
@@ -0,0 +1,9 @@
+#![feature(specialization)] //~ WARN the feature `specialization` is incomplete
+#![feature(negative_impls)]
+
+trait MyTrait {}
+
+impl<T> !MyTrait for T {}
+impl MyTrait for u32 {} //~ ERROR E0751
+
+fn main() {}