these 2 derivations will be built:
  /nix/store/0m41xfns3lkvrf8czmffbcm2rl6ihvzq-rootfs-ubuntu-22_04.tar.drv
  /nix/store/qb1w456akhwcd8a7z54vsgkx22qsyvcz-container-test-ubuntu-22-04-extra-init.drv