Besides the unit tests, the main program is now able to startup but crashes after a while without any message at all. No stack trace, no exception, nothing. Obviously, this makes it hard to debug anything...
You mention you're using Docker. https://github.com/moby/moby/issues/11740 has some info on how to generate core files inside a Docker container. You should be able to load that up in gdb and see exactly what's going on.
