error[E0282]: type annotations needed
  --> $DIR/uninferred-consts.rs:9:9
   |
LL |     Foo.foo();
   |         ^^^ cannot infer the value of the const parameter `A` declared on the method `foo`
   |
help: consider specifying the generic arguments
   |
LL |     Foo.foo::<A, B>();
   |            ++++++++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0282`.