This ticket had assigned some Differential requests:
D690

So I went through logs and each output is being stored into uuid specific location (artifacts dir). The only exception is /var/log/taskotron/taskotron-$username.log, which is buildslave specific and data are appended there. I think we are good here.

Disposable mode example:
https://taskotron-dev.fedoraproject.org/artifacts/all/9095810e-9db1-11e5-a6e4-525400ab4cbd/task_output/

Local execution example:
/var/lib/taskotron/artifacts/20151208_103633_614973/*
/var/log/taskotron/taskotron-mkrizek.log
/var/lib/artifacts/20151208_100039_666245/taskotron.log

Any concerns or objections to closing this?

Looks good, I think we can close it. As a side remark, maybe we can now rename taskotron-initiator.log to taskotron-overlord.log.