ERROR tests/test_node.py::test_nodejs_matrix[nodejs-attach-maps-12-glibc-True] - docker.errors.BuildError: The command '/bin/sh -c mkdir /app' returned a non-zero code: 1
This is weird, why would mkdir /app fail? o.O only reason is for /app to exist, in wich case we can fix it to use mkdir -p. Maybe the Aarch64 has /app for whatever reason.
It fails during building docker image.