#![feature(allow_internal_unstable)]
#![feature(associated_type_bounds)]
#![feature(auto_traits)]
+#![feature(c_unwind)]
#![feature(cfg_sanitize)]
#![feature(cfg_target_has_atomic)]
#![feature(cfg_target_has_atomic_equal_alignment)]
#![feature(extern_types)]
#![feature(fundamental)]
#![feature(if_let_guard)]
+#![feature(inline_const)]
#![feature(intra_doc_pointers)]
#![feature(intrinsics)]
#![feature(lang_items)]