After digging around some related bugs and from there poking around /var/log/dist-upgrade, I concluded that it was getting stuck on rdnssd, which I wasn't really using anyway. I removed it, and have at least so far gotten past this error.
After digging around some related bugs and from there poking around /var/log/ dist-upgrade, I concluded that it was getting stuck on rdnssd, which I wasn't really using anyway. I removed it, and have at least so far gotten past this error.