Your package rubygem-plist failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=7003331 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 906323 [details] build.log
Created attachment 906324 [details] root.log
Created attachment 906325 [details] state.log
A rebuild in current rawhide is done: http://koji.fedoraproject.org/koji/taskinfo?taskID=7038717