Your package rubygem-thin failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17790964 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1254477 [details] build.log
Created attachment 1254478 [details] root.log
Created attachment 1254479 [details] state.log
This bug appears to have been reported against 'rawhide' during the Fedora 26 development cycle. Changing version to '26'.
jaruga's rubygem-thin-1.7.0-3.fc27 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=865210
rawhide https://koji.fedoraproject.org/koji/taskinfo?taskID=18227093 rubygem-thin-1.7.0-3.fc27