This Rust library implements a wrapper type called SendWrapper which allows you to move around non-Send types between threads, as long as you access the contained value only from within the original thread - Rust source code

 You also have to make sure that the wrapper is dropped from within the original
 thread. If any of these constraints is violated, a panic occurs.
 .
 This package contains the source for the Rust send_wrapper crate, packaged by
 debcargo for use with cargo and dh-cargo.