1error[E0277]: `Rc<()>` cannot be sent between threads safely
2  --> $DIR/no-send-res-ports.rs:25:5
3   |
4LL |       thread::spawn(move|| {
5   |  _____^^^^^^^^^^^^^_-
6   | |     |
7   | |     `Rc<()>` cannot be sent between threads safely
8LL | |
9LL | |         let y = x;
10LL | |         println!("{:?}", y);
11LL | |     });
12   | |_____- within this `[closure@$DIR/no-send-res-ports.rs:25:19: 29:6]`
13   |
14   = help: within `[closure@$DIR/no-send-res-ports.rs:25:19: 29:6]`, the trait `Send` is not implemented for `Rc<()>`
15note: required because it appears within the type `Port<()>`
16  --> $DIR/no-send-res-ports.rs:5:8
17   |
18LL | struct Port<T>(Rc<T>);
19   |        ^^^^
20note: required because it appears within the type `Foo`
21  --> $DIR/no-send-res-ports.rs:9:12
22   |
23LL |     struct Foo {
24   |            ^^^
25   = note: required because it appears within the type `[closure@$DIR/no-send-res-ports.rs:25:19: 29:6]`
26note: required by a bound in `spawn`
27  --> $SRC_DIR/std/src/thread/mod.rs:LL:COL
28   |
29LL |     F: Send + 'static,
30   |        ^^^^ required by this bound in `spawn`
31
32error: aborting due to previous error
33
34For more information about this error, try `rustc --explain E0277`.
35