Generators

Fix E0075: Generator/Resume Point Cannot Exist in a Const Context

Rust intermediate Linux macOS Windows WebAssembly Jul 22, 2026

Rust compiler error E0075 occurs when attempting to resume a generator or coroutine within a const context, which is disallowed because generator state machines cannot be evaluated at compile time.

Fix E0770: Async Fn Return Type Cannot Contain Impl Trait

Rust intermediate Linux macOS Windows Jun 15, 2026

Rust compiler error E0770 occurs when an async function's return type contains impl Trait, which generators cannot represent.