Your package fbdesk failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6962036 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 904310 [details] build.log
Created attachment 904311 [details] root.log
Created attachment 904312 [details] state.log
Created attachment 907898 [details] Patch for rawhide Cause was a compile issue with gcc-4.8 and newer (note that this also F20FTBFS'd in bug 992241). Patch for rawhide attached.