hi,
We've now got a public mailing list up at http://lists.centos.org/mailman/listinfo/centos-build-reports ; all build reports for the CentOS-7 src to binary builds will be posted there, including the fail and success reports. All fail reports will come with log file snippets as well as mock configs and the environ they were attempted in.
The list is readonly, with posts only allowed by the builder. All replies and followup conversations about the builds should be directed to the centos-devel list ( http://lists.centos.org/mailman/listinfo/centos-devel )
- KB