The SIGILL/core is interesting. Do you see anything on the host dmesg related to the process. Else does it do the same if you run the command through docker invoking a shell. docker -i -t ubuntu ...
I have setuptools installed via pacman only. I have also removed all of Python 3 and dependencies, along with the full /lib/python3.7 directory to make sure the distutils installed versions were blow ...
Replace “python” with “python3” for installing Python 3.x version. Please note that get-pip.py will also install setuptools and wheel. As I mentioned earlier ...