#![feature(conservative_impl_trait)]
#![feature(const_fn)]
#![feature(core_intrinsics)]
-#![cfg_attr(stage0,feature(field_init_shorthand))]
#![feature(i128_type)]
#![feature(libc)]
#![feature(loop_break_value)]
#![feature(specialization)]
#![feature(staged_api)]
#![feature(unboxed_closures)]
+#![feature(discriminant_value)]
+#![feature(sort_unstable)]
extern crate arena;
extern crate core;