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-rw-r--r--src/test/compile-fail/missing_debug_impls.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/test/compile-fail/missing_debug_impls.rs b/src/test/compile-fail/missing_debug_impls.rs
index 4adae2f3680..5b781a40fe5 100644
--- a/src/test/compile-fail/missing_debug_impls.rs
+++ b/src/test/compile-fail/missing_debug_impls.rs
@@ -10,7 +10,8 @@
 
 // compile-flags: --crate-type lib
 #![deny(missing_debug_implementations)]
-#![allow(unused, unstable, missing_copy_implementations)]
+#![allow(unused, missing_copy_implementations)]
+#![feature(core)]
 
 use std::fmt;