these 10 derivations will be built:
  /nix/store/54ndxcj9dk7zsjczas128mpy5gv82m3z-system-units.drv
  /nix/store/4d1sid81zb0ycwiin88j38frxsz4wmmb-etc.drv
  /nix/store/iw5nzf3n5k8s0lwf4g1kgqskc516q4ps-activate.drv
  /nix/store/bag966rcagwjjxmiy7ylchhvzq4gqiwk-nixos-system-server-test.drv
  /nix/store/hqak7jyg9qnw9xn05r76g2r0ykcms5v1-closure-info.drv
  /nix/store/kg5i3yxaqaffz41axgzbzi1k1xvgksm4-run-nixos-vm.drv
  /nix/store/0kkpcqdsn5gckpzx5k9dfz50nzgg0ggf-nixos-vm.drv
  /nix/store/cyqv2f12z9dbh405wjjy4d1mgv7p2p7v-driverConfiguration.json.drv
  /nix/store/hd6rbi6p5jjd8hf1wwjg9blczwa1vhx9-nixos-test-driver-nixos-test-external-signer.drv
  /nix/store/k1gdvc57qfm55dfzzkn5rpq03hxkq7rh-vm-test-run-nixos-test-external-signer.drv