Pipelines Build: unexpected EOF

A pipelines build quits with "unexpected EOF" with no further information. During a docker build, while running Python tests the message unexpected EOF displays before the Pipelines build fails. The docker build command is spawned and limited to 2G of memory using the -m 2G flag in docker. The issue is not reproducible locally in docker at all, so I'm not really sure what to do.

The build is here: https://bitbucket.org/hamweather/data-flow-gdal-worker2/addon/pipelines/home#!/results/93

This seems like maybe expected behavior? Without any message about what happened or documentation, at minimum this should be a task to update docs.

Thanks,
-Seth