Your package ghc-happstack-server failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6969707 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 904723 [details] build.log
Created attachment 904724 [details] root.log
Created attachment 904725 [details] state.log