these 2 derivations will be built:
  /nix/store/2w1kk6wpj17gwrn0vb4ss0f8x4g8lvir-nix-grpc-store-0.2.3.drv
  /nix/store/f9rnw4mazacpbrjq6i0x1hlnr8amdkvb-nix-grpc-store-dispatcher.drv