1 files changed, 10 insertions, 0 deletions
diff --git a/src/test/ui/rust-2018/dyn-keyword.rs b/src/test/ui/rust-2018/dyn-keyword.rs
new file mode 100644
index 000000000..5989cfa1c
--- /dev/null
+++ b/src/test/ui/rust-2018/dyn-keyword.rs
@@ -0,0 +1,10 @@
+// edition:2015
+// run-rustfix
+
+#![allow(unused_variables)]
+#![deny(keyword_idents)]
+
+fn main() {
+    let dyn = (); //~ ERROR dyn
+    //~^ WARN this is accepted in the current edition
+}