Bitbucket pipe line is getting hung

Hi,
We are running with these services:
postgres
zookeeper
kafka

when it start executing py.test it stops but works fine in local environment.
py.test -s --tb=native

https://bitbucket.org/clippylabs/fractal/addon/pipelines/home#!/results/228/steps/%7Bbf76bb84-54fa-4e02-965d-a337960b6d37%7D

Thanks
Raf