Your package relaxngcc failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6996347 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
Now built for F22: http://koji.fedoraproject.org/koji/buildinfo?buildID=610306