error[E0277]: the trait bound `T: Wf` is not satisfied
  --> $DIR/bad-wf-when-selecting-method.rs:12:13
   |
LL |     Wrapper(t).needs_sized();
   |     ------- ^ the trait `Wf` is not implemented for `T`
   |     |
   |     required by a bound introduced by this call
   |
note: required by a bound in `Wrapper`
  --> $DIR/bad-wf-when-selecting-method.rs:5:19
   |
LL | struct Wrapper<T: Wf<Assoc = U>, U>(T);
   |                   ^^^^^^^^^^^^^ required by this bound in `Wrapper`
help: consider restricting type parameter `T` with trait `Wf`
   |
LL | fn test<T: Wf>(t: T) {
   |          ++++

error[E0277]: the trait bound `T: Wf` is not satisfied
  --> $DIR/bad-wf-when-selecting-method.rs:12:5
   |
LL |     Wrapper(t).needs_sized();
   |     ^^^^^^^^^^ the trait `Wf` is not implemented for `T`
   |
note: required by a bound in `Wrapper`
  --> $DIR/bad-wf-when-selecting-method.rs:5:19
   |
LL | struct Wrapper<T: Wf<Assoc = U>, U>(T);
   |                   ^^^^^^^^^^^^^ required by this bound in `Wrapper`
help: consider restricting type parameter `T` with trait `Wf`
   |
LL | fn test<T: Wf>(t: T) {
   |          ++++

error[E0599]: the method `needs_sized` exists for struct `Wrapper<T, _>`, but its trait bounds were not satisfied
  --> $DIR/bad-wf-when-selecting-method.rs:12:16
   |
LL | struct Wrapper<T: Wf<Assoc = U>, U>(T);
   | ----------------------------------- method `needs_sized` not found for this struct
...
LL |     Wrapper(t).needs_sized();
   |                ^^^^^^^^^^^ method cannot be called on `Wrapper<T, _>` due to unsatisfied trait bounds
   |
   = note: the following trait bounds were not satisfied:
           `T: Wf`
help: consider restricting the type parameter to satisfy the trait bound
   |
LL | fn test<T>(t: T) where T: Wf {
   |                  +++++++++++

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0277, E0599.
For more information about an error, try `rustc --explain E0277`.