these 3 derivations will be built:
  /nix/store/642zw95cfprgfrxbvzbla6jjr2brlx38-container-test-driver-0.0.1.drv
  /nix/store/yr6088zya24g6k8g42q2jj7fvc3kvdq4-rootfs-debian-13.drv
  /nix/store/mss6pwq6lxlwfk8zxq9nh7d00dqcha15-container-test-debian-13-ssh.drv