Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
1: Test command: /usr/bin/python3 "-m" "unittest" "discover" "-s" "tests" "-t" "/builddir/build/BUILD/dnf-4.18.2"
The first-cmake test failed, which is a transitive call to Python unittests.