Your package usbguard failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17790008 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1254212 [details] build.log
Created attachment 1254213 [details] root.log
Created attachment 1254214 [details] state.log
This needs an update to the latest sources.
This bug appears to have been reported against 'rawhide' during the Fedora 26 development cycle. Changing version to '26'.
mildew's usbguard-0.6.3-0.1.20170301gitfcde518.fc27 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=863590