Your package R-mvtnorm failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17701051 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1251256 [details] build.log
Created attachment 1251257 [details] root.log
Created attachment 1251258 [details] state.log
zbyszek's R-mvtnorm-1.0.3-3.fc26 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=840212