these 2 derivations will be built:
  /nix/store/hzcbqi0dwpqiprssxhqnjapn5s3lb7ak-nix-grpc-store-0.1.0-beta.1.drv
  /nix/store/n9g8f51hy6r0fwz137ixy9sxqbs16ny4-nix-grpc-store-exit-stress.drv