these 3 derivations will be built:
  /nix/store/xas9z4imi76lhk5a2g8nwzjvk2fhdyxp-source.drv
  /nix/store/0icxqgf2dpf3xnlcq67cwdzhasrmilgh-agentty-0.9.11.drv
  /nix/store/kzzfvqvpb2996iz8pj9d69s62h6hwk4l-check-agentty.drv