[Build Reliability] Sonic buildimage repo has build instability when executed with parallelization

[guhan ravi]

Hi,

    We have been noticing random build failures with sonic-buildimage repo even for idempotent repo state. Our current build setup is configured to execute the make command with job count of 8. We are suspecting that this is causing a race condition with select Python targets. These Python whl targets have a name conflict in their respective tests package. This conflict triggers a race condition of adding/removing packages with same name when job count is more than 1. Is this a known issue? Or are we missing some configuration in our build setup that would avoid this issue? 

Thanks,

Guhan