these 4 derivations will be built:
  /nix/store/8ydk6pc78ksbxzy08j3s9azx5rpp7dq8-clan-cli-source.drv
  /nix/store/5gd72b0hqibjhln8mbwy38sd38bpjw42-clan-cli.drv
  /nix/store/dlwh9fnpxzp9wdsbi54azq5ss9vw6zy6-tofu.drv
  /nix/store/hbz6vg8qld8gcgq9803dzgl4h7b0hnj3-cache-new.drv