these 4 derivations will be built:
  /nix/store/5z330xjzvvzbd4xkk43amfs4p15z7415-clan-runtime.drv
  /nix/store/jyf5vr7pivwa18x1qk31qc3c50fbcmwi-clan-cli-source.drv
  /nix/store/kyfdsqkvp5v84wi5x5ljl4kmimlfvvg4-clan-cli.drv
  /nix/store/ih9j6rrx428qgqgjjij90ky482hjzncn-nix-shell.drv