--multi-user=yes silently fails

$ disorderfs --sort-dirents=yes --multi-user=yes $PWD /tmp/sorted/
disorderfs: reversing dirents
disorderfs: sorting dirents

looks like successfully mounted.

$ ls /tmp/sorted 
ls: cannot access '/tmp/sorted': Transport endpoint is not connected

doesn't tell what went wrong. Can't this be changed to show an error and not mess with the target folder?

$ disorderfs --sort-dirents=yes --multi-user=yes $PWD /tmp/sorted/
Error: Try again as root
$ ls /tmp/sorted
$