these 2 derivations will be built:
  /nix/store/bjxvwzz2gigi13srbqsdgwdapgqyhmm4-rootfs-debian-13.tar.drv
  /nix/store/b4chwld96im9m67f5lk92vlhv9vck37x-container-test-debian-13-existing-files.drv