#![feature(bool_to_option)]
#![feature(const_cstr_unchecked)]
#![feature(crate_visibility_modifier)]
+#![feature(extended_key_value_attributes)]
#![feature(extern_types)]
#![feature(in_band_lifetimes)]
+#![feature(iter_zip)]
#![feature(nll)]
-#![feature(or_patterns)]
+#![cfg_attr(bootstrap, feature(or_patterns))]
#![recursion_limit = "256"]
use back::write::{create_informational_target_machine, create_target_machine};