I think there is a mistake, use common sense in guide which spread out over internet. Main bench named “bench-repo” which we cloned first time. By using this bench-repo we init (create) another bench by default named “frappe-bench” if you wish to create TWO BENCH, first :
$ bench init frappe-bench
then create another bench
$ bench init frappe1-bench
and you can create hundred bench from one bench-repo, DO NOT create a bench inside the frappe-bench or frappe1-bench ( this is what named multi bench )