There is a new pull request by jnbr against master on the void-packages repository

https://github.com/jnbr/void-packages rust-147
https://github.com/void-linux/void-packages/pull/26609

rust: update to 1.48.0
[ci skip]

Still work in progress, firefox builds with rust-1.48 are currently failing.

A patch file from https://github.com/void-linux/void-packages/pull/26609.patch is attached