IndexError: basic_string::at: __n (which is 18446744073709551615) >= this->size() (which is 2)
If your operating system is Windows and you have set git config --global core.autocrlf true , when you clone this repo, git will automatically add CR to cfg/simulator.cfg. This will lead to the error in Linux of the docker container.
So please change cfg/simulator.cfg from CRLF to LF after cloning this repo.