Your package rubygem-exception_notification failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=7000758 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 906078 [details] build.log
Created attachment 906079 [details] root.log
Created attachment 906080 [details] state.log
Fixed in rubygem-exception_notification-4.0.1-3: http://pkgs.fedoraproject.org/cgit/rubygem-exception_notification.git/commit/?id=1ba5f398ef829c0d6fdf8ca0b8d68f2d2d95a41c F21 build: http://koji.fedoraproject.org/koji/taskinfo?taskID=7036744