Your package python-nose2 failed to build from source in current F28. https://koji.fedoraproject.org/koji/taskinfo?taskID=24876414 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
Created attachment 1444465 [details] build.log
Created attachment 1444467 [details] root.log
Created attachment 1444468 [details] state.log
Will check if the update (bz1509750) won't solve this.