these 3 derivations will be built:
  /nix/store/cys695spjd3rh2yd01rn3giwpvycja5g-clan-cli-source.drv
  /nix/store/bw5zwiy4bhp3g7jyba4rfrkg6zkj30vs-clan-cli.drv
  /nix/store/s6zssrpcab5bz6br1in2b4aha7an26dy-nix-shell.drv