[lcall]

I think this is not true. I found a way (in the async book or tokio documentation, somewhere near the end of the docs or end of a quick-start guide or such) to just call it and not have to make the calling function async, using runtime.block_on() .

If you request here or via the email at my web site (in profile), I can provide a more detailed example from a test I have.

(note to self: see fn test_basic_sql_connectivity_with_async_and_tokio() .)