Your package libevent failed to build from source in current rawhide.
For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1252889 [details]
Created attachment 1252890 [details]
Created attachment 1252891 [details]
This bug appears to have been reported against 'rawhide' during the Fedora 26 development cycle.
Changing version to '26'.
Quick test: latest libevent 2.1.8 just build fine in F26 (but introduce a soname bump from 5 to 6)
tmraz's libevent-2.0.22-3.fc27 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=873085
libevent-2.0.22-3.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-f1d16808df
libevent-2.0.22-3.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.