[GolDDranks]

I don't think it's going to happen. The "Rust way" is to simply live with the fact that it's not "batteries included". Cargo means that Rust comes with "batteries reliably delivered" kind of service, and I think that has been more beneficial for the community in the long run.

async / .await are going to turn functions into Futures, and they by themselves don't necessitate an executor any more than the Future trait itself.

[pjmlp]

Only if those libraries are upheld to a specific quality level and available in every single platform that Rust is able to target.

Here Java, .NET and future C++ are a clear winner, given that they are part of the standard library.