these 2 derivations will be built:
  /nix/store/275gwgdj916aqdn8wbnsxxd1kiayfrky-nix-grpc-store-0.1.0.drv
  /nix/store/z8j3gila000r2kz0bayqh6a79p4yy366-nix-grpc-store-exit-stress.drv