added feature.

Author: talg

contrib/lib/tests/space_helmet.rs

@@ -1,6 +1,7 @@
 #![cfg_attr(test, feature(plugin, decl_macro))]
 #![cfg_attr(test, plugin(rocket_codegen))]
 #![feature(extern_prelude)]
+#![feature(proc_macro_non_items)]
 
 #[macro_use] extern crate rocket;
 extern crate rocket_contrib;