There is an updated pull request by lun-4 against master on the void-packages repository

https://github.com/lun-4/void-packages crystal-update
https://github.com/void-linux/void-packages/pull/24648

crystal: update to 0.35.1
Tested locally on glibc x86_64 (`crystal` and `shards`).

A patch file from https://github.com/void-linux/void-packages/pull/24648.patch is attached