From c658165d84d15dda24e48eb043f499bb8ed1b353 Mon Sep 17 00:00:00 2001
From: Joel Armstrong <jcarmstr@ucsc.edu>
Date: Tue, 11 Aug 2015 18:49:21 -0700
Subject: [PATCH] fix "extern crate core" import

Broken on latest rust nightly because using no_std automatically injects
an "extern crate core". (rust-lang/rfcs#1184)
---
 src/lib.rs | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 94f6654..8777d77 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,13 +13,10 @@
 #![crate_type="lib"]
 
 #![feature(asm, no_std)]
-#![feature(core)]
 #![deny(warnings)]
 #![no_std]
 #![allow(unused_mut)]
 
-extern crate core;
-
 #[cfg(test)]
 extern crate std;