Your package guacamole-client failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6981448 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 905170 [details] build.log
Created attachment 905171 [details] root.log
Created attachment 905172 [details] state.log
Fixed in guacamole-client-0.9.1-2
I believe that this bug is fixed in guacamole-client-0.9.1-2, which is available in Fedora Rawhide, so I am closing this bug now. The build containing the fix can be found at Koji: http://koji.fedoraproject.org/koji/buildinfo?buildID=531790