#![feature(inner_deref)]
#![feature(slice_internals)]
#![feature(slice_partition_dedup)]
#![feature(copy_within)]
#![feature(int_error_matching)]
#![feature(inner_deref)]
#![feature(slice_internals)]
#![feature(slice_partition_dedup)]
#![feature(copy_within)]
#![feature(int_error_matching)]