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: 
>       assert exitcode in (ExitCode.ok, ExitCode.pdfa_conversion_failed)
E       assert <ExitCode.other_error: 15> in (<ExitCode.ok: 0>, <ExitCode.pdfa_conversion_failed: 10>)

Test asserts that the exitcode is either ok or pdfa_conversion_failed. That assertion fails, because the test ended with ExitCode.other_error: 15 which is not in the list of the allowed exitcodes.