these 2 derivations will be built:
  /nix/store/fij09wbhapk8xrxm1wq6kz3y1ca2dr34-nix-grpc-store-0.2.2.drv
  /nix/store/nw0kk40jshhc5imd2zni8yvzns796p4b-nix-grpc-store-dispatcher.drv