these 2 derivations will be built:
  /nix/store/9gddy9a5d89hnqk4ap398kia75z57wdm-spaces-nixos-apply-dispatch.drv
  /nix/store/89gc6q60bn6qxfyh7rdvj1b8hgj2r9l7-spaces-nixos-apply-dispatch-test.drv