these 4 derivations will be built:
  /nix/store/i5ic2h47k9pb5m0r24mg4c0qh15f8ahh-clan-cli-source.drv
  /nix/store/9xqz4v0q8sw3gd35pryvmb4dxv1s2166-clan-cli.drv
  /nix/store/4ka0vlac5lcrdlyfi9i7ck2wp02b6nhr-tofu.drv
  /nix/store/53ggmfbyxrgzl59h9nnr616kq4cjc1p7-cache-new.drv