New comment by jnbr on void-packages repository https://github.com/void-linux/void-packages/pull/13267#issuecomment-514138206 Comment: > openssl-sys at least is necessary - build did not proceed with the old version I just tried, it works without. The build uses version `0.10.23` for `openssl` and `0.9.47` for `openssl-sys`. You can see this in the `Cargo.lock` file.