these 2 derivations will be built:
  /nix/store/80i01642594abcv7qf718x9dh0kfy5bk-nix-grpc-store-0.2.0.drv
  /nix/store/bghmiwwnaxh58vjh82z32x6qb4x2xml8-nix-grpc-store-dispatcher.drv