#![feature(bound_cloned)]
#![feature(cfg_target_has_atomic)]
#![feature(concat_idents)]
-#![feature(const_fn)]
+#![feature(const_alloc_layout)]
#![feature(const_if_match)]
#![feature(const_panic)]
#![feature(const_fn_union)]
#![feature(extern_types)]
#![feature(fundamental)]
#![feature(intrinsics)]
+#![feature(try_find)]
#![feature(is_sorted)]
#![feature(iter_once_with)]
#![feature(lang_items)]