these 2 derivations will be built:
  /nix/store/x776r7364bp05xyjjpj9mdzbl1rsfmgn-rootfs-ubuntu-22_04.tar.drv
  /nix/store/lvi6wqa6siq0i7jlbnmym907g5bpcbdz-container-test-ubuntu-22-04-empty-config.drv