New comment by jnbr on void-packages repository

https://github.com/void-linux/void-packages/issues/12058#issuecomment-498073770
Comment:
The definition of `libc::pthread_t` was changed [here](https://github.com/rust-lang/libc/commit/8f403e5ac262508b763da173d545195710d10494#diff-f78d94e8743c5dfc443c2b1351137950R1)

There is a PR for rustc to handle the breakage: https://github.com/rust-lang/rust/pull/61428