error[E0277]: the trait bound `(): Foo<N>` is not satisfied
  --> $DIR/exhaustive-value.rs:262:6
   |
LL |     <() as Foo<N>>::test()
   |      ^^ the trait `Foo<N>` is not implemented for `()`
   |
   = help: the following other types implement trait `Foo<N>`:
             `()` implements `Foo<0>`
             `()` implements `Foo<100>`
             `()` implements `Foo<101>`
             `()` implements `Foo<102>`
             `()` implements `Foo<103>`
             `()` implements `Foo<104>`
             `()` implements `Foo<105>`
             `()` implements `Foo<106>`
           and 248 others

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.