these 4 derivations will be built:
  /nix/store/w16p6dfsph5zajc0avnbkg8ckmw2mzvh-clan-cli-source.drv
  /nix/store/ypyl54pjjc2kadcxq7vq4q1q7ihfsllq-clan-cli.drv
  /nix/store/5rqzjddfccn9hrgnvs08d3zrpjfxlglq-tofu.drv
  /nix/store/9hpan84dmvz27yqds5q5zidqmh4p09sc-cache-new.drv