Your package memcached failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17737581 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1253122 [details] build.log
Created attachment 1253123 [details] root.log
Created attachment 1253124 [details] state.log
Commit: http://pkgs.fedoraproject.org/cgit/rpms/memcached.git/commit/?id=653c86f51972482d620b9b511b515ecadd3ebe78
jorton's memcached-1.4.34-3.fc26 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=859977
Package: memcached-1.4.34-3.fc26 Build: https://koji.fedoraproject.org/koji/buildinfo?buildID=859977
mlichvar's memcached-1.4.35-1.fc26 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=862468
Joe, thanks for fixing this.