For a more in-depth explanation of how Send and Sync work theoretically, see http://manishearth.github.io/blog/2015/05/30/how-rust-achieves-thread-safety/ http:

For a more in-depth explanation of how Send and Sync work theoretically, see http://manishearth.github.io/blog/2015/05/30/how-rust-achieves-thread-safety/ http://manishearth.github.io/blog/2015/05/30/how-rust-achiev... or http://huonw.github.io/blog/2015/02/some-notes-on-send-and-sync/ http://huonw.github.io/blog/2015/02/some-notes-on-send-and-s...