Personally, I think I prefer the idea of adopting sccache more with some kind of trust system for sharing caches (official build servers, a consensus system, or

Personally, I think I prefer the idea of adopting sccache more with some kind of trust system for sharing caches (official build servers, a consensus system, or something else?). After programming C++ for years, I much prefer relying on a lowest common denominator like C for a stable ABI. This also lets Rust do whatever optimizations it wants (like compacting enums / structs).