Your package debmirror failed to build from source in current rawhide.
NOTE: build logs are cleaned up after 1 week
For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
*** Bug 913939 has been marked as a duplicate of this bug. ***
This has been fixed by adding a missing BuildRequire: https://koji.fedoraproject.org/koji/taskinfo?taskID=5043061.