#![feature(dropck_eyepatch)]
#![feature(exhaustive_patterns)]
#![feature(intra_doc_pointers)]
+#![feature(label_break_value)]
#![feature(lang_items)]
#![feature(let_chains)]
#![feature(let_else)]
#![feature(needs_panic_runtime)]
#![feature(negative_impls)]
#![feature(never_type)]
-#![feature(nll)]
+#![cfg_attr(bootstrap, feature(nll))]
#![feature(platform_intrinsics)]
#![feature(prelude_import)]
#![feature(rustc_attrs)]