Your package airrac failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17710029 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1251396 [details] build.log
Created attachment 1251397 [details] root.log
Created attachment 1251398 [details] state.log
This bug appears to have been reported against 'rawhide' during the Fedora 26 development cycle. Changing version to '26'.
Closing - This package appears having been rebuilt.
Yes, one of the dependencies, namely StdAir, was failing to build. StdAir now builds again (https://koji.fedoraproject.org/koji/buildinfo?buildID=862129), so does AirRAC: https://koji.fedoraproject.org/koji/buildinfo?buildID=840384