| error[E0277]: the size for values of type `(dyn Sync + 'static)` cannot be known at compilation time | |
| --> $DIR/invalid-unsized-const-eval.rs:9:11 | |
| | | |
| LL | data: (dyn Sync, ()), | |
| | ^^^^^^^^^^^^^^ doesn't have a size known at compile-time | |
| | | |
| = help: the trait `Sized` is not implemented for `(dyn Sync + 'static)` | |
| = note: only the last element of a tuple may have a dynamically sized type | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0277`. |