these 3 derivations will be built:
  /nix/store/m0zd0i7k1z52vch5ql4kqlbz1yrd2gya-clan-cli-source.drv
  /nix/store/n55s29bvvl4zb86anr6qjfpz1fbjz76n-clan-cli.drv
  /nix/store/xns6h1p427la8z4wg2bcvh2py801w0rp-nix-shell.drv