these 2 derivations will be built:
  /nix/store/x776r7364bp05xyjjpj9mdzbl1rsfmgn-rootfs-ubuntu-22_04.tar.drv
  /nix/store/y236jv6gir2il6yygw47hn6sax3xrmvr-container-test-ubuntu-22-04-nix-flakes.drv