these 4 derivations will be built:
  /nix/store/k728jx3hmdar9y5axd3gfzzfb125fwpm-clan-cli-source.drv
  /nix/store/2ii4wd9w8jnxzyz332ls8rz9njp1hv84-clan-cli.drv
  /nix/store/mqdahjfj0f622ykd5jazb43i5vdlg3aa-tofu.drv
  /nix/store/lqaa7xkr9ssa0lb0cmvaj4fdmiadshvg-cache-new.drv