The use-case is somewhat specific as it allows developers to do:
```
export TRIPLE_OVERRIDE=x86_64-pc-windows-msvc
```
and build the binary as x86 even on an ARM VM.
The reason ARM builds don't work natively is the `win32` crate,
which simply doesn't work there.
It could be another step to replace it with something that does
to get ARM builds, but probably that will only happen once
there is demand for native ARM windows builds.