I said 2 things in very first comment. I never claimed rust doesn't have select. This is quoted from my very first comment in this thread,

AFAIK, rust also doesn't allow selecting between a send and receive on channels. It only allows selecting over a set of receivers and even there it doesn't offer something like the default clause of Go's select statement.

Perhaps you should try to read my comments in their entirety before making accusations.

Yes I missed sync_channel, but if that is all CSP was, Java does CSP too. It has Threads and SynchronousQueue exactly like rust 1.0 will.