diff --git a/src/librustc_trans_utils/lib.rs b/src/librustc_trans_utils/lib.rs
index bfecb2019836..9b7ab204492a 100644
--- a/src/librustc_trans_utils/lib.rs
+++ b/src/librustc_trans_utils/lib.rs
@@ -119,4 +119,5 @@ pub fn find_exported_symbols<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>) -> NodeSet {
     }).collect()
 }
 
+#[cfg(not(stage0))] // remove after the next snapshot
 __build_diagnostic_array! { librustc_trans_utils, DIAGNOSTICS }