I have to agree, despite using it a lot, async is the worst part of Rust.
If I had to do some of my projects over again, I'd probably just stick with synchronous Rust and thread pools.
The concept of async isn't that bad, but it's implementation in Rust feels rushed and incomplete.
For a language that puts so much emphasis on compile time checks to avoid runtime footguns, it's way too easy to clog the async runtime with blocking calls and not realize it.
If I had to do some of my projects over again, I'd probably just stick with synchronous Rust and thread pools.
The concept of async isn't that bad, but it's implementation in Rust feels rushed and incomplete.
For a language that puts so much emphasis on compile time checks to avoid runtime footguns, it's way too easy to clog the async runtime with blocking calls and not realize it.