You can make async-std mimic a tokio runtime by adding “tokio02” or “tokio03” to the list of features for async_std. At its core, futures and future combinators

You can make async-std mimic a tokio runtime by adding “tokio02” or “tokio03” to the list of features for async_std. At its core, futures and future combinators work under all runtimes, it’s just some features will complain if they don’t detect the tokio runtime.