these 2 derivations will be built:
  /nix/store/x776r7364bp05xyjjpj9mdzbl1rsfmgn-rootfs-ubuntu-22_04.tar.drv
  /nix/store/whwlk1wqhd5x6428asv4351sgsna5lpv-container-test-ubuntu-22-04-masked-units.drv