New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/28770#issuecomment-780160709

Comment:
They are using the target's capnproto binary :(

`/usr/aarch64-linux-gnu/usr/bin/capnp`

If it doesn't actually need `capnproto-devel` in `makedepends`, that might solve the issue handily, I think.