There's a merged pull request on the void-packages repository

rust 1.43.1
https://github.com/void-linux/void-packages/pull/22268

Description:
This updates rust to 1.43.1. Cargo update has already been done previously.

Changes:

- New option `bindist` which creates bootstrap tarballs in `/host/sources/distfiles`, with the appropriate options set (rpath, static llvm)
- Removed standalone `static_llvm`
- LLVM 10

TODO:

- [x] Test `ppc64le`
- [x] Test `ppc64le-musl`, `ppc64`, `ppc64-musl`, `ppc`, `ppc-musl`
- [x] Test other architectures
- [x] Test firefox
- [ ] Upload bootstrap tarballs
- [x] Update checksums for non-ppc arches (currently still at 1.43.0)