Your package t-digest failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=10156865 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
Created attachment 1048465 [details] build.log
Created attachment 1048466 [details] root.log
Created attachment 1048467 [details] state.log
http://koji.fedoraproject.org/koji/taskinfo?taskID=10338753