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Run exit(1) in a finally block so a failed fatal error report cannot leave the worker alive after losing its master. Add a regression test that closes the worker output pipe and master connection, checks the exit status, and reaps the process on failure.
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Run exit(1) in a finally block so a failed fatal error report cannot leave the worker alive after losing its master, as actually encountered when debugging Julia.
Add a regression test that closes the worker output pipe and master connection, checks the exit status, and reaps the process on failure.