add core_intrinsics feature gate

Jorge Aparicio · Jorge Aparicio · commit ac352a3512a0 · 2016-08-15T21:08:04.000-05:00
diff --git a/src/lib.rs b/src/lib.rs
@@ -1,4 +1,5 @@
 #![feature(asm)]
+#![feature(core_intrinsics)]
 #![feature(linkage)]
 #![feature(naked_functions)]
 #![cfg_attr(not(test), no_std)]
