[BUG] Random Forest stress test failing: test_rf_host_memory_leak

[lowener]

Describe the bug
python/cuml/test/test_random_forest.py::test_rf_host_memory_leak[large_clf2-classification] is failing with version 0.19 with the following output:
assert (16947105792 - 16945065984) < 2000000.0

Environment details (please complete the following information):

• Environment location: Docker
• Linux Distro/Architecture: [Ubuntu 18.04 amd64]
• GPU Model/Driver: [V100 and driver 460.39]
• CUDA: [11.0]
• Method of cuDF & cuML install: [Docker]
  • image rapidsai/rapidsai-dev-nightly:0.19-cuda11.0-devel-ubuntu18.04-py3.8
  • commit 1291502

Additional context
env.txt
test_random_forest.txt

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[github-actions]

This issue has been labeled inactive-90d due to no recent activity in the past 90 days. Please close this issue if no further response or action is needed. Otherwise, please respond with a comment indicating any updates or changes to the original issue and/or confirm this issue still needs to be addressed.