Docker Exit Code Translator

Your container died with a bare exit code and a few cryptic log lines, and the error tells you nothing useful. Give it the code, the container and the last log lines and it explains in plain English what the code means, what usually causes it, how to read those logs, and where to start diagnosing before you fix it.

My Docker container exited with code {EXIT_CODE}. Container: {CONTAINER_NAME_OR_IMAGE}. Last few log lines: {LOG_OUTPUT}.

Explain in plain English what exit code {EXIT_CODE} means, what most commonly causes it, and how to read the log lines I've given you. Then walk me through how to diagnose this properly and what to try first to fix it.