these 2 derivations will be built:
  /nix/store/sraf4q0spgnr7snfn1iq2virfh01a7va-rootfs-ubuntu-24_04.tar.drv
  /nix/store/1s7bynp2azwk8wi7mp9w7cpxf76wcrk7-container-test-ubuntu-24-04-ssh.drv