these 3 derivations will be built:
  /nix/store/i06y932rnb67h9ar9v69fa977bgzmsh8-clan-cli-source.drv
  /nix/store/s5fi5vxfsqx5shdkv1zfn0f0cgd0chhw-clan-cli.drv
  /nix/store/3vwfvwbd9hf56k221pz1ildjwhmb03m4-nix-shell.drv