I am also experiencing the same issue with Rust. I can access via FTP but the server won't start up, I even moved, wiped, restarted and reverted to backup and still isn't working.
So my server has been down for about 7 hours now and I can't get it to start back up. I have tried restarting, moving it, even completely wiped it and still won't start up. Maybe someone has an idea on how to resolve this or if anyone is experiencing the same issue.