The scheduled tasks system is built on top of Cloudwatch Events, which is asynchronous system. You would need to setup a rule in Cloudwatch Events to watch for

The scheduled tasks system is built on top of Cloudwatch Events, which is asynchronous system. You would need to setup a rule in Cloudwatch Events to watch for task events that indicate that a task stopped with a nonzero exit code, or that a task was unable to be placed. It's definitely more complicated than just checking /var/mail but with the full set of features enabled you can get visibility: - If the task fails to be placed, or stops with a non zero exit code CloudWatch event rule for the task event triggers allowing you to respond to that as you see fit: email someone? trigger a PagerDuty? - If the task logging was enabled you can go to the CloudWatch log stream for the task and see the actual stdout from the container and see why it had crashed.