Your package php-pear-XML-Serializer failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17781303 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1253532 [details] build.log
Created attachment 1253533 [details] root.log
Created attachment 1253534 [details] state.log
Test broken by XML_Util 1.4.1 (in php-pear) Fixed by http://pkgs.fedoraproject.org/cgit/php-pear.git/commit/?h=master&id=708a4a047a772197ae408333a2d74302898de0af
Package: php-pear-XML-Serializer-0.21.0-2.fc26 Status: complete Built by: remi ID: 852817