these 2 derivations will be built:
  /nix/store/9zw88by7v4wn7y3067ifxysk1rdb1n4v-nix-grpc-store-0.1.0-beta.2.drv
  /nix/store/05s0ypwdh41dy6lyrpp5zizlq4np8ljb-nix-grpc-store-exit-stress.drv