@david Can you do me a favor and run the following commands?
docker run -ti --rm -e LOAD_PLUGINS=1 -e JS_ONLY=1 -e COMMIT_HASH=c86028f9a53b389a3163bf87e2f1cc77b21af503 -e LD_PRELOAD=/usr/lib/libjemalloc.so.1 --entrypoint="/bin/bash" discourse/discourse_test:release
Please let me know if the tests fail for you. I can reproduce the test failure with discourse_dev as well.