these 3 derivations will be built:
  /nix/store/6020v377g6kf30kvr10iyk93gxsp2y22-driverConfiguration.json.drv
  /nix/store/5px5d0xsf7jbrrlhnjxn7pyb0jhsddyy-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/5lgjzriafwgjvc4g9bny0bx9yhqps7j8-vm-test-run-nix-grpc-farm.drv