these 2 derivations will be built:
  /nix/store/0kbd0yfnkx2nxw8iswf0fk2hkbw98qk6-nix-grpc-store-0.1.0.drv
  /nix/store/1y5pzlvyj6wijylw5jl3hcxpp1g7vl4b-nix-grpc-store-dispatcher.drv