Your package ktechlab failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17730445 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1252830 [details] build.log
Created attachment 1252832 [details] root.log
Created attachment 1252834 [details] state.log
Taking. This package has narrowing issues, which have been left unaddressed for several Fedora releases.
corsepiu's ktechlab-0.3.70-20.20090304svn.fc26 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=861519