// run-rustfix
#![feature(never_type)]
-#![allow(unused_mut, clippy::redundant_allocation)]
+#![allow(unused_mut, unused_tuple_struct_fields, clippy::redundant_allocation)]
#![warn(clippy::must_use_candidate)]
use std::rc::Rc;
use std::sync::atomic::{AtomicBool, Ordering};