- cargo hack --feature-powerset test; only after making changes.
- We don't need to do this after changing solely BUGS.md.
- We are maximalists. We do the job. Then we consider other places the job could have been done and do it there, too.
- A BUGS.md reproducer is not done just because adjacent tests pass or manual runs succeed. Before removing an entry, check that the exact reproducers, or a strictly stronger regression, are in the automated suite.