ruststream 0.4.0

Async messaging framework for Rust: broker-agnostic traits, router, codecs, and a conformance harness for broker authors.
Documentation 
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error: #[ruststream::app] requires a synchronous builder returning `RustStream`
 --> tests/ui/app_async_builder.rs:5:1
  |
5 | async fn build() -> u8 {
  | ^^^^^