these 4 derivations will be built:
  /nix/store/3my1qzn3r6728c9zn0rfr2jskndh104x-clan-cli-source.drv
  /nix/store/610c8i9qqxzfk410952rx5sbbbxx4mw8-clan-cli.drv
  /nix/store/wf9h3zzcs203nd1pzl048xgc3942dsyp-tofu.drv
  /nix/store/c80f9682h13yh3p89czbc6cn4bbwi045-dns.drv