1 #![feature(assert_matches)]
2 #![feature(bool_to_option)]
3 #![feature(core_intrinsics)]
4 #![feature(hash_raw_entry)]
6 #![feature(min_specialization)]
7 #![feature(extern_types)]
8 #![cfg_attr(not(bootstrap), allow(rustc::potential_query_instability))]
13 extern crate rustc_data_structures;
15 extern crate rustc_macros;