Bug or misconfig?

Following these I set up a new build env:
https://lede-project.org/docs/guide-developer/quickstart-build-images

I ran into this same problem before when I setup following those instructions and mentioned here*.

emacs spins on one cpu forever, this time I left for several hours and when I came back the build was spinning on this. It's a large annoyance and really bad because it happens near the start of the build process.

Anyone else see this?

*

Dot config file location?

Update: (forgot this)
Steps to reproduce:

  • Follow the quick start guide into a new lede directory.
  • The build output will stop and in another terminal you will see emacs trying to byte-compile conftest.el