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