these 7 derivations will be built:
  /nix/store/r3br6fwsd8rnnj9z145vn3n037kln2sk-activate.drv
  /nix/store/asmbdpg15ccyk2qj5419sxakyd0r7j7z-nixos-system-server-test.drv
  /nix/store/z1bpy1r3r5d8imyziicsmjnxz6gb831n-closure-info.drv
  /nix/store/69gxdd3jdhvv007y6jppznbz31whxgjd-run-nixos-vm.drv
  /nix/store/gixcj6qwpxp4rfsddx2azjkq4s01bmbp-nixos-vm.drv
  /nix/store/yz3d5ddkzcgqqw7g6mdks8jpzj41937j-nixos-test-driver-plv8.drv
  /nix/store/c7rq6g77nnd3h267vby2vjd74hsch749-vm-test-run-plv8.drv