these 2 derivations will be built:
  /nix/store/8ghqvv3x59xzr6ni4vwpmjhp7zz6kx6j-nix-grpc-store-0.2.2.drv
  /nix/store/7b2n0dy1k5sj3zydyh5fw1b2anx2n0ay-nix-grpc-store-dispatcher.drv