surprising toolchain resolution for rustfmt and clippy

[ajwerner]

I'm sure I don't understand what's going on exactly, but I have a situation where a rust_library depends on some go binaries that are cross compiled, and that leads to my being unable to use the rustfmt and clippy aspects. I am generally surprised by the need to resolve those toolchains to begin with. Does anybody know why such toolchains would be resolved? It seems like it doesn't matter what platform the target is being built for.

[UebelAndre]

Can you post a small repro?