Test fails silently and Report does not run

I have a test setup running via node and a cron job on centos. We run 224 tests and 28 scenarios. Every so often we make a change and we can not get all 224 tests to run. Any failures are silent and then the html report doesn't run. So we know there are changes to review, but we have no means to review them.

I guess I'm wondering is there any way to have a more verbose error messaging, so I can see what's happening? It puts a damper on our automated testing having this happen.

We run
backstop test

from the command-line to initiate the tests.

this is the err file from the backstop run
[css_test.txt](https://github.com/garris/BackstopJS/files/4541427/css_test.txt)

our backstop.json
[backstop_json.txt](https://github.com/garris/BackstopJS/files/4541432/backstop_json.txt)