Command-line tool for migrating system settings and data for distributions based on Debian, Arch and Fedora. Can backup and restore software repositories, packages, icons, themes, fonts, users, groups, home data, dconf settings, fstab/crypttab entries, and cron tasks.
Having no crontabs is normal and fine, so this shouldn't throw errors:
I've verified that the issue is occuring on multiple machines all running Ubuntu 16.04