Tests are not working with no apparent reason

Problem/Motivation

I added a patch here: #2672020: Add support for configurable preview images

But the patches are not running tests due to a CI error. When I look on Jenkins it shows:
https://dispatcher.drupalci.org/job/default/144048/console

10:27:15 Error
10:27:15 Received a non-zero return code from the last command executed on the container.  (Return status: 2)
10:27:15 Execution Error
10:27:15 Error encountered while executing job build step execute:command
10:27:15 Checking console output
10:27:15 Recording test results
10:27:15 ERROR: Step ?Publish JUnit test result report? failed: No test report files were found. Configuration error?
10:27:15 Finished: FAILURE

And the automated testing of the module shows this:
https://www.drupal.org/pift-ci-job/311551

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes