#![feature(crate_visibility_modifier)]
#![feature(let_else)]
#![feature(extern_types)]
+#![feature(once_cell)]
#![feature(nll)]
#![recursion_limit = "256"]
+#![allow(rustc::potential_query_instability)]
+
+#[macro_use]
+extern crate rustc_macros;
use back::write::{create_informational_target_machine, create_target_machine};