error[E0284]: 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` | note: required by a const generic parameter in `Foo::foo` --> $DIR/uninferred-consts.rs:6:12 | LL | fn foo(self) {} | ^^^^^^^^^^^^^^ required by this const generic parameter in `Foo::foo` help: consider specifying the generic arguments | LL | Foo.foo::(); | ++++++++ error[E0284]: type annotations needed --> $DIR/uninferred-consts.rs:9:9 | LL | Foo.foo(); | ^^^ cannot infer the value of the const parameter `B` declared on the method `foo` | note: required by a const generic parameter in `Foo::foo` --> $DIR/uninferred-consts.rs:6:28 | LL | fn foo(self) {} | ^^^^^^^^^^^^^^ required by this const generic parameter in `Foo::foo` help: consider specifying the generic arguments | LL | Foo.foo::(); | ++++++++ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0284`.