Your package rubygem-ci_reporter failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=5768815 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
Just had to wait for rubygem-cucumber to be rebuilt. Done now. http://koji.fedoraproject.org/koji/buildinfo?buildID=452937