Drime won't list more than 20,000 entries of a directory. Asking for a
later page gets the last page it allows again, so rclone asked for the
same page forever and used more and more memory until it was killed.
Return an error instead. An error stops sync deleting files based on
the listing and uploading duplicates of files it couldn't see.
Also return listing errors from getItem rather than "object not found".
Maksym Tymoshyk
ae39ec6f64