these 2 derivations will be built:
  /nix/store/ss02kwppxgm83hxj70jakdxp1c9z8ajh-nix-grpc-store-0.2.3.drv
  /nix/store/zhkmw9pg6vlln9pgg49b4x0p04s6r1sf-nix-grpc-store-dispatcher.drv