these 3 derivations will be built:
  /nix/store/wdhmbr10kw6a0h9zcqsjvwqrckhvg8xb-clan-cli-source.drv
  /nix/store/fxbyxfjyq4hfy2wklrmgjh6m65svi60l-clan-cli.drv
  /nix/store/rn1hszkvjzr9afirik2j4119by83xaj7-nix-shell.drv