Let's Encrypt certbot-auto output not logged in a usable manner, only "Let's Encrypt SSL Cert for: example.com could not be issued."
When Let's Encrypt certbot-auto fails, the only error in the System-Log is: Let's Encrypt SSL Cert for: example.com could not be issued.
There are no other logs that I can find around the server that would explain more, and the error above is not helpful when it fails.
When running certbot-auto from the command line, there is plenty of helpful output for both successes and failures.
This is on 3.1dev.