these 3 derivations will be built:
  /nix/store/bjajr78yq5lpd9752f2yx1dq14gac32l-clan-cli-source.drv
  /nix/store/bymmn30xq7np990ki17j7zhrvnzckw18-clan-cli.drv
  /nix/store/rkfn8jwl4n9k99h4n5dylwm425gwsd1k-nix-shell.drv