Comment 8 for bug 1251117

We could keep these separate bugs but there is an elastic-recheck query against "E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?" for bug 1286818 so most people are probably going to recheck against that (since we don't have multi-line query support we can't say if it's rax or ubuntu in the logstash query). Maybe we could filter with the build_node filter in logstash?