error[E0282]: type annotations needed --> $DIR/normalizes_to_ignores_unnormalizable_candidate.rs:36:5 | LL | foo(unconstrained()) | ^^^ cannot infer type of the type parameter `T` declared on the function `foo` | help: consider specifying the generic argument | LL | foo::(unconstrained()) | +++++ error: aborting due to previous error For more information about this error, try `rustc --explain E0282`.