TL;DR: If you pull core develop, be sure to pull newt develop at the
same time. Otherwise, your builds will fail.
I just pushed a fix to the develop branch for this issue:
Unfortunately, this fix introduces an incompatibility with the core
repo. Specifically, the compiler.yml definitions had to change a bit.
More details are available in the ticket and the commit messages.
Please let me know if there are any questions.