People often ask for help in #fedora-releng or #fedora-devel with koji builds. The number 1 mistake people make is to post links to log files. The problem with posting to logs is that quite often the log file people point at is the wrong one. It helps in debugging when we have full access to all log files ad the parent and other children tasks in koji.
The easiest path to providing assistance is to point at the task in question, sometimes we have to look at other arches and other log files in order to figure out what exactly has gone wrong. So please in order to help you better post links to tasks and not log files.