1 files changed, 2 insertions, 0 deletions
diff --git a/src/rustc/rustc.rc b/src/rustc/rustc.rc
index 501192d3ced..67f36e3f249 100644
--- a/src/rustc/rustc.rc
+++ b/src/rustc/rustc.rc
@@ -11,6 +11,8 @@
 
 #[no_core];
 
+#[legacy_modes];
+
 #[allow(vecs_implicitly_copyable)];
 #[allow(non_camel_case_types)];
 // #[warn(deprecated_pattern)];