#![feature(if_let_guard)]
#![feature(iter_intersperse)]
#![feature(iter_order_by)]
-#![cfg_attr(bootstrap, feature(let_chains))]
#![feature(let_else)]
#![feature(never_type)]
#![recursion_limit = "256"]
use rustc_session::lint::builtin::{
BARE_TRAIT_OBJECTS, ELIDED_LIFETIMES_IN_PATHS, EXPLICIT_OUTLIVES_REQUIREMENTS,
};
-use rustc_span::symbol::{Ident, Symbol};
+use rustc_span::symbol::Ident;
use rustc_span::Span;
use array_into_iter::ArrayIntoIter;