I ran `ulimit -c 0` and started handbrake from the Terminal. I added a
folder's worth of files to the queue, set the output folder to the 5TB
external drive, and clicked Start. Handbrake crashed as expected when
starting the second encoding pass.
The associated `journalctl --no-pager` output is attached as a text
file. The associated core dump is only 34.1 MB this time. Please let me
know if there is information I should extract from it, or a separate
location where I should upload it.