these 2 derivations will be built:
  /nix/store/4l03n0c3020ipz01l66klh56xbdkb1cs-rootfs-ubuntu-22_04.tar.drv
  /nix/store/83ppzlrnhxk25x8m99nyjzbvs4sz1lx1-container-test-ubuntu-22-04-nixpkgs-flake.drv