The --rm mutant container is gone by the time the trap runs, so
`docker rm -f $cur` never had a container to remove. The stopgap's watchdog
kills every job-labelled container before it signals the driver, so nothing
needs tracking here. Also restores a line continuation the control-run edit
had collapsed.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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