these 3 derivations will be built:
  /nix/store/h76xp3swydjkkqppj0fzvq94fr4qhhfs-clan-cli-source.drv
  /nix/store/2lcbrnz80kmpz1h3rh4bfi74hm3cg2bb-clan-cli.drv
  /nix/store/4flhp1d9nx1yj4fmwgdwndby76df2ffw-nix-shell.drv