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: 
+ /usr/bin/pytest -Wdefault
/var/tmp/rpm-tmp.Mrz6o7: line 48: /usr/bin/pytest: No such file or directory
The snippet shows missing pytest needed for the tests.