It seems that "metrics:" is not a valid YAML key in generator.yml. I guess you got this from copying the example in FORMAT.md ?
I have raised this as an issue: https://github.com/prometheus/snmp_exporter/issues/877 As for the message "Can't find augmenting node", net-snmp is complaining about the MIB, but as it's just a warning it might not cause any problem. -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/4f9ceeac-35c9-4e20-8ffe-b04a081b9ea6n%40googlegroups.com.

