Your package dietlibc failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6951115 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 904000 [details] build.log
Created attachment 904001 [details] root.log
Created attachment 904002 [details] state.log
Fixed in rawhide, f21 to come.
dietlibc-0.33-4.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/dietlibc-0.33-4.fc21
Package dietlibc-0.33-4.fc21: * should fix your issue, * was pushed to the Fedora 21 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing dietlibc-0.33-4.fc21' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-15268/dietlibc-0.33-4.fc21 then log in and leave karma (feedback).
dietlibc-0.33-4.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.