these 4 derivations will be built:
  /nix/store/ijgdv56ilp4a8ybpr8bmabs1sv7b22sr-test-script.drv
  /nix/store/j0sp4qjxz8f6xwcghrspl5xayd9x1yqh-driverConfiguration.json.drv
  /nix/store/dx9q9rmwhiddb2pdpzw5ss6xcri00l8g-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/hvkinlk6lwzjmx5hdfmghj3gg13j0gfl-vm-test-run-nix-grpc-farm.drv