1 files changed, 14 insertions, 0 deletions
diff --git a/tests/ui/feature-gates/stable-features.rs b/tests/ui/feature-gates/stable-features.rs
new file mode 100644
index 000000000..ed7f0899d
--- /dev/null
+++ b/tests/ui/feature-gates/stable-features.rs
@@ -0,0 +1,14 @@
+// Testing that the stable_features lint catches use of stable
+// language and lib features.
+
+#![deny(stable_features)]
+
+#![feature(test_accepted_feature)]
+//~^ ERROR the feature `test_accepted_feature` has been stable since 1.0.0
+
+#![feature(rust1)]
+//~^ ERROR the feature `rust1` has been stable since 1.0.0
+
+fn main() {
+    let _foo: Vec<()> = Vec::new();
+}