Update feature gates

robo9k · robo9k · commit e7ee6a0177c1 · 2015-04-03T01:28:28.000+02:00
diff --git a/src/lib.rs b/src/lib.rs
@@ -21,7 +21,7 @@
 // for `error:Error` and such
 #![feature(core)]
 
-#![feature(convert)]
+#![feature(slice_patterns)]
 
 extern crate rand;
 
