these 3 derivations will be built:
  /nix/store/8zn6xz2nznprl43gvrv87ppv0gg9hpm6-clan-cli-source.drv
  /nix/store/jwr042c8lqgnd0374g3lfz9p8jfab823-clan-cli.drv
  /nix/store/nw06k78s60x608nlqb0dfxz1d2qncn46-nix-shell.drv