question: what does it mean if nix is trying to build bootstrap-tools?

[colemickens]

Hi,

I have two machine configs, one builds, the other, adds some to the first, and does not build. Eventually it tries to build something that needs bootstrap-tools. And that seems to forcibly want a native builder.

Any tips on what this means, or how to resolve it? Since I'm able to cross-compile the minimal build, I could qemu boot it, or have someone remote operate my VF2 far away and do a native build, but I'd also really like to cross-compile as much as possible.