Keepers 1aa2d987e1
log failure cause on purge (#1307)
## Description

Load tests fail on the post-test cleanup using the purge script,
but are not currently logging the cause.  Local repro has not
been successful.  This change adds additional error logging
output for review in case of failure.

## Type of change

- [x] 🤖 Test

## Issue(s)

* #902

## Test Plan

- [x] 💪 Manual
2022-10-24 21:54:48 +00:00
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2022-10-24 21:54:48 +00:00