On Thu, Jun 10, 2021 at 10:47:20AM +1200, Thomas Munro wrote: > Not sure if there is much chance of debugging this one-off failure in > without a backtrace (long shot: any chance there's still a core > file?)
No; it was probably in a directory deleted for each run. One would need to add dbx support to the buildfarm client, or perhaps add support for saving build directories when there's a core, so I can operate dbx manually.
