these 6 derivations will be built:
  /nix/store/9lkfnskcmcli4ss1wx9lffapim41wnzc-nixos-vm.drv
  /nix/store/r3yzhl96cxmnsg0ympsp5bln4mmi3k7i-run-nixos-vm.drv
  /nix/store/mg7fspydrpc2hzvx1zmy02k8vq8rsihn-nixos-vm.drv
  /nix/store/8484pginr00nvrjrw84zq9538mqyd1vr-driverConfiguration.json.drv
  /nix/store/sdyhk264qc4psn5hl21dy8ys628v3v6b-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/c56ina6rdimsaryakwfmnwnifrhpya3j-vm-test-run-nix-grpc-farm.drv