these 2 derivations will be built:
  /nix/store/z7wf2gvmbcm24nd74fkjz0g9vvq8zj7x-nix-grpc-store-0.1.0.drv
  /nix/store/14x4r3vy3cynlnklzxpk6fzfcb4cw302-nix-grpc-store-dispatcher.drv