these 2 derivations will be built:
  /nix/store/rq03hva45h5y6kra96k1w07crpvswfd6-nix-grpc-store-0.2.3.drv
  /nix/store/4km9ff712ajh41n3l97rch5m5m1k1pq5-nix-grpc-store-dispatcher.drv