diff --git a/src/lib.rs b/src/lib.rs
index 7b621dd..ed4916f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,4 @@
-#![allow(unused_features)]
 #![feature(asm)]
-#![feature(core_intrinsics)]
 #![feature(linkage)]
 #![feature(naked_functions)]
 #![cfg_attr(not(test), no_std)]