Auto merge of #2289 - JohnTitor:no-more-opt-build, r=JohnTitor
Auto merge of #2289 - JohnTitor:no-more-opt-build, r=JohnTitor

Do debug build for `x86_64-unknown-linux-gnux32`

The mentioned issue has been fixed, let's see if we can remove the `--release` flag.
r? `@ghost`

rust-lang/libc,rust-lang/libc,rust-lang/libc