these 2 derivations will be built:
  /nix/store/qk73raay7caf7dvm75ay320pzy7zzk9c-rootfs-ubuntu-26_04.tar.drv
  /nix/store/0q4z5j07bwaawhdx3d0qjn0dy0y2n98j-container-test-ubuntu-26-04-extra-init.drv