Your package rubygem-rack-protection 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 914620 has been marked as a duplicate of this bug. ***
rubygem-rack-protection-1.3.2-2 is now built for rawhide: