these 2 derivations will be built:
  /nix/store/q7594kalfbnqsfddll3c17hd1n6v3rf2-nix-grpc-store-0.1.0-beta.1.drv
  /nix/store/nawsjfbkk3536cd5k7zs8kvm88pvpnyf-nix-grpc-store-exit-stress.drv