these 3 derivations will be built:
  /nix/store/39k0ssai0r043c1x5646h5jykcp8yj3x-clan-cli-source.drv
  /nix/store/844cwc9h04r9i930xhnmgsv97aqzsm85-clan-cli.drv
  /nix/store/zjaqh9bpx4sm164j6kc8sc2ca0mx3330-nix-shell.drv