these 4 derivations will be built:
  /nix/store/54ab0mm10zvaqpa6mzddw9hfg8m5qrn0-clan-runtime.drv
  /nix/store/h75xbh7s6js9mw5pf6x3gr5hn9m9142s-clan-cli-source.drv
  /nix/store/86cdby298mk8gbx69fjwkix6spd8z75i-clan-cli.drv
  /nix/store/3h90zb4b7xm8ckbl4l32gshmxwzcgyh3-nix-shell.drv