4e300e071b disabled the "weak cyphers"
on libxcrypt. For some reason, this is breaking the crypt hex library.
Using lybxcrypt-legacy, which re-enables these weak cyphers.
Upstream removed the crypt dependency and is drafting a new release.
We'll drop altogether this libxcrypt dependency soon enough anyways.
Fixes#223518
9ebbbb4fc0