The seeded robustness goldens (tests/robustness/goldens.json, tests::robustness_goldens) recorded
what truck built for seeds 0-95, so they now fail on every seed SMLib builds differently. The
kernel-cases ladder (tests/kernel-cases/ladder, cargo xtask kernel-cases --ladder), whose cases
each carry their own right answer, supersedes them.
Gone with them: fuzz::golden, the CI goldens lane (the goldens output, SLOW_SEEDS, the re-record
hint), their nextest filter and priority entries, the mutants sample and the tests/robustness/
test-data mapping in affected.py. The robustness seeds and tests::robustness stay. The docs point
at the ladder.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>