The kernel memory limit is deprecated in Docker 20.10.0, and its support was removed in runc v1.0.0-rc94. So, this warning can be safely removed. Relevant:b8ca7de823Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> (cherry picked from commit731f52cfe8) Signed-off-by: Sebastiaan van Stijn <github@gone.nl>