- Feature Name: (fill me in with a unique ident,
zst-scoped-safe-fncast) - Start Date: (fill me in with today's date, 2026-05-22)
- RFC PR: rust-lang/rfcs#0000
- Rust Issue: rust-lang/rust#0000
Summary
The cast of a target-feature enabled function into a safe, callable rust-ABI function necessarily requires an intermediate unsafe cast step. Make this step safe in scopes where a…