await-tree The Futures in Async Rust can be arbitrarily composited or nested to achieve a variety of control flows. Assuming that the execution of each Future is represented as a node, then the asynchronous execution of an async task can be organized into a logical tree, which is constantly transformed over the polling, completion, and cancellation of Futures. await-tree allows developers to dump this execution tree at runtime, with the span of each Future annotated by instrument_await. A basic ...