| error[E0277]: `T` cannot be unpinned |
| --> $DIR/issue-90164.rs:5:10 |
| | |
| LL | copy(r, w); |
| | ---- ^ the trait `Unpin` is not implemented for `T` |
| | | |
| | required by a bound introduced by this call |
| | |
| = note: consider using the `pin!` macro |
| consider using `Box::pin` if you need to access the pinned value outside of the current scope |
| note: required by a bound in `copy` |
| --> $DIR/issue-90164.rs:1:12 |
| | |
| LL | fn copy<R: Unpin, W>(_: R, _: W) {} |
| | ^^^^^ required by this bound in `copy` |
| help: consider restricting type parameter `T` with trait `Unpin` |
| | |
| LL | fn f<T: std::marker::Unpin>(r: T) { |
| | ++++++++++++++++++++ |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |
