Determinism

All Turbo-Engine functions must be pure and deterministic. This means one should avoid using global state, static mutable values, randomness, or any other non-deterministic operations.

A notable mention is HashMap and HashSet. The order of iteration is not guaranteed and can change between runs. This can lead to non-deterministic builds. Prefer IndexMap and IndexSet (or BTreeMap and BTreeSet) which have a deterministic order.