these 2 derivations will be built:
  /nix/store/csb8hlr4iaim74m4rd6zi9c3cmds8sbh-nix-grpc-store-0.2.3.drv
  /nix/store/ichb3ry2053np43wdrga3zk95b0mmafl-nix-grpc-store-dispatcher.drv