// Test that a class with only sendable fields can be sent use std::sync::mpsc::channel; #[allow(dead_code)] struct Foo { i: isize, j: char, } fn foo(i:isize, j: char) -> Foo { Foo { i: i, j: j } } pub fn main() { let (tx, rx) = channel(); tx.send(foo(42, 'c')).unwrap(); let _val = rx; }