We've run into this problem where the same code built through our reproducible builds infrastructure has these weird registry switchups between running the build environment on an x86 machine and an aarch64 machine. At this point I would pay for someone to explain what is going on here. It doesn't make sense to me. 
GitHub
guix: use GCC 14.3.0 over 13.3.0 by fanquake · Pull Request #33775 · bitcoin/bitcoin
Switching to using GCC 14.x for release builds has come up multiple times recently. It will eventually be needed for #25573, and could also be usef...