1 #![feature(bool_to_option)]
2 #![feature(const_panic)]
3 #![feature(core_intrinsics)]
4 #![feature(drain_filter)]
5 #![feature(hash_raw_entry)]
7 #![feature(min_specialization)]
8 #![feature(stmt_expr_attributes)]
13 extern crate rustc_data_structures;
15 extern crate rustc_macros;