message: change ordering of the imported traits to pass format checks
diff: #![allow(dead_code)]
  -use core::alloc::{GlobalAlloc, AllocRef, AllocErr, Layout};
  +use core::alloc::{AllocErr, AllocRef, GlobalAlloc, Layout};
  use core::ops::Deref;
  use core::ptr::NonNull;
  use core::{mem, ptr};
  