these 2 derivations will be built:
  /nix/store/mjb10wrgl5wbq1s1n2b6y4yvav0rd03h-nix-grpc-store-0.1.0.drv
  /nix/store/59gcddk1z2s8iiixlnjxmwp136xqpyjf-nix-grpc-store-exit-stress.drv