src/test/ui/wf/wf-fn-where-clause.stderr

   1 error[E0277]: the trait bound `U: std::marker::Copy` is not satisfied
   2   --> $DIR/wf-fn-where-clause.rs:8:1
   3    |
   4 LL | / fn foo<T,U>() where T: ExtraCopy<U>
   5 LL | | {
   6 LL | | }
   7    | |_^ the trait `std::marker::Copy` is not implemented for `U`
   8    |
   9    = help: consider adding a `where U: std::marker::Copy` bound
  10 note: required by `ExtraCopy`
  11   --> $DIR/wf-fn-where-clause.rs:6:1
  12    |
  13 LL | trait ExtraCopy<T:Copy> { }
  14    | ^^^^^^^^^^^^^^^^^^^^^^^
  15
  16 error[E0277]: the size for values of type `(dyn std::marker::Copy + 'static)` cannot be known at compilation time
  17   --> $DIR/wf-fn-where-clause.rs:12:1
  18    |
  19 LL | fn bar() where Vec<dyn Copy>:, {}
  20    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
  21    |
  22    = help: the trait `std::marker::Sized` is not implemented for `(dyn std::marker::Copy + 'static)`
  23    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
  24    = note: required by `std::vec::Vec`
  25
  26 error[E0038]: the trait `std::marker::Copy` cannot be made into an object
  27   --> $DIR/wf-fn-where-clause.rs:12:1
  28    |
  29 LL | fn bar() where Vec<dyn Copy>:, {}
  30    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::marker::Copy` cannot be made into an object
  31    |
  32    = note: the trait cannot require that `Self : Sized`
  33
  34 error: aborting due to 3 previous errors
  35
  36 Some errors have detailed explanations: E0038, E0277.
  37 For more information about an error, try `rustc --explain E0038`.