these 2 derivations will be built:
  /nix/store/gagnbv5zp69vzx7d2kcp032fadlhg9xh-nix-grpc-store-0.1.0.drv
  /nix/store/ivjwhq2vbd5sjk1jznzza8y8xwpf23ic-nix-grpc-store-dispatcher.drv