these 2 derivations will be built:
  /nix/store/s1khmg4314y5xgh48b2vnkv5pdrkjhfs-nix-grpc-store-0.1.0-beta.4.drv
  /nix/store/75xrry5r22ydn8xv46vpjbs1sf45hrh0-nix-grpc-store-exit-stress.drv