these 2 derivations will be built:
  /nix/store/74nmchniqcdgk5dyindhv6h9xpp47lzy-nix-grpc-store-0.2.3.drv
  /nix/store/j3ccrcvdxyv4cmcmh2c00r7a8anj1f27-nix-grpc-store-exit-stress.drv