these 4 derivations will be built:
  /nix/store/n57643qhqila2izl5qw141hribhhlsh6-closure-info.drv
  /nix/store/jcwq56qad5j7y8jjapw3g8h64w9ddqfg-clan-cli-source.drv
  /nix/store/pz75dc5fxbb04wiy5rnhkjcp7y75k3sq-clan-cli.drv
  /nix/store/2ckn3l083ri95hs5gs5h3hyzlvmf2ix8-check-vars.drv