You can turn off unwinding as of a few days ago in nightly. We'll see how long it takes to hit stable.

This is one of my issues with Rust, there are a a couple dozen knobs that need to be turned and may or may not break things to get somewhat sensible behavior (imo). And creating a shared library with Rust with it's default behavior of crashing on OOM (Linux can be configured to not do overcommit), etc is just plain bad.. oh yes there is a knob for that too!