Durable-task fails when using agent Dockerfile

[Marky Jackson]

Anyone else having issues with durable-task plugin and Dockerfile as an agent? 

I keep getting 

process apparently never started in /home/ec2-user/workspace/ntend-pipeline_customer-settings@3@tmp/durable-f026a6cb(running Jenkins temporarily with -Dorg.jenkinsci.plugins.durabletask.BourneShellScript.LAUNCH_DIAGNOSTICS=true might make the problem clearer)
Cannot contact EC2 (ec2) - ${LABEL} (ec2ID): java.io.FileNotFoundException: File '/home/ec2-user/workspace/ntend-pipeline_customer-settings@3@tmp/durable-f026a6cb/output.txt' does not exist
Hard kill!

I opened https://issues.jenkins-ci.org/browse/JENKINS-60286 after trying all the previously noted tickets workarounds. 

Thought I would drop a note here as well.