src/test/ui/no-send-res-ports.stderr

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