Well the less-footgun-ish alternative would look something like a Stream API, but the last time I checked tokio-stream wasn't stable yet.

Then you could merge a `Stream<A>` and `Stream<B>` into a `Stream<Either<A,B>>` and pull from that. Since you're dealing with owned streams, dropping the stream forces some degree of cleanup. There are still ways to make a mess, but they take more effort.

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Ratelimit so I have to reply to mycoliza with an edit here:

That example calls `do_thing()`, whose body does not appear anywhere in the webpage. Use better identifiers.

If you meant `do_stuff()`, you haven't replaced select!() with streams, since `do_stuff()` calls `select!()`.

The problem is `select!()`; if you keep using `select!()` but just slather on a bunch of streams that isn't going to fix anything. You have to get rid of select!() by replacing it with streams.