It's well known that what is being stabilized today is lacking the Send bounds stuff. In fact, there was a lot of discussion about whether they should completely block this feature until the Send bounds stuff was ready. Ultimately I think it is good that they shipped this part of the feature even though the other part isn't ready yet - Tower isn't able to use this yet, but other crates can.
Yes Alice fully agreed. I do understand this. I just want to share my experience as a warning to others. As what is shipped is nothing less than amazing. It would be ashamed if this results to disappointment due to wrong expectations, as happened to me. I’m however very grateful for what is already there.