RUSTSEC-2023-0081: safemem is unmaintained

[github-actions]

safemem is unmaintained

Details
Status	unmaintained
Package	safemem
Version	0.3.3
URL	https://github.com/abonander/safemem
Date	2023-02-14

The latest crates.io release was in 2019. The repository has been archived by the author.

Migration

• safemem::copy_over(slice, src_idx, dest_idx, len); can be replaced with slice.copy_within(src_idx..src_idx+len, dest_idx); as of rust 1.37.0.

• safemem::write_bytes(slice, byte); can be replaced with slice.fill(byte); as of rust 1.50.0

• safemem::prepend(slice, vec); can be replaced with

  let old_len = vec.len();
  vec.extend_from_slice(slice);
  vec.rotate_left(old_len);

  as of rust 1.26.0

See advisory page for additional details.