1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/ui-fulldeps/rustc_encodable_hygiene.rs b/src/test/ui-fulldeps/rustc_encodable_hygiene.rs
new file mode 100644
index 000000000..452110a65
--- /dev/null
+++ b/src/test/ui-fulldeps/rustc_encodable_hygiene.rs
@@ -0,0 +1,26 @@
+// run-pass
+
+#![feature(rustc_private)]
+
+extern crate rustc_macros;
+#[allow(dead_code)]
+extern crate rustc_serialize;
+
+use rustc_macros::{Decodable, Encodable};
+
+#[derive(Decodable, Encodable, Debug)]
+struct A {
+    a: String,
+}
+
+trait Trait {
+    fn encode(&self);
+}
+
+impl<T> Trait for T {
+    fn encode(&self) {
+        unimplemented!()
+    }
+}
+
+fn main() {}