these 2 derivations will be built:
  /nix/store/8v693fgl4lwavy0szi0il7fjdqnwb8af-nix-grpc-store-0.2.0.drv
  /nix/store/f3a9nrf6n6zfjbsb2xr48ah2n5jgmq8z-nix-grpc-store-dispatcher.drv