these 4 derivations will be built:
  /nix/store/zd643fgnqws9gmwmyv9dhiyz0vwsmxdq-clan-cli-source.drv
  /nix/store/x8fa8pp9cvkkmsj7z7r3pqvacad4v4gp-clan-cli.drv
  /nix/store/s5ldxml93jagw53vdzp1m2wcbxa43dh1-tofu.drv
  /nix/store/fj30an9mdisd918hzhjx0jrym8s0jvch-cache-new.drv