error[E0718]: `add` language item must be applied to a trait with 1 generic argument --> $DIR/lang-item-generic-requirements.rs:10:1 | LL | #[lang = "add"] | ^^^^^^^^^^^^^^^ LL | trait MyAdd<'a, T> {} | ------- this trait has 2 generic arguments error[E0718]: `drop_in_place` language item must be applied to a function with at least 1 generic argument --> $DIR/lang-item-generic-requirements.rs:14:1 | LL | #[lang = "drop_in_place"] | ^^^^^^^^^^^^^^^^^^^^^^^^^ LL | LL | fn my_ptr_drop() {} | - this function has 0 generic arguments error[E0718]: `index` language item must be applied to a trait with 1 generic argument --> $DIR/lang-item-generic-requirements.rs:18:1 | LL | #[lang = "index"] | ^^^^^^^^^^^^^^^^^ LL | trait MyIndex<'a, T> {} | ------- this trait has 2 generic arguments error[E0718]: `phantom_data` language item must be applied to a struct with 1 generic argument --> $DIR/lang-item-generic-requirements.rs:22:1 | LL | #[lang = "phantom_data"] | ^^^^^^^^^^^^^^^^^^^^^^^^ LL | LL | struct MyPhantomData; | ------ this struct has 2 generic arguments error[E0718]: `owned_box` language item must be applied to a struct with at least 1 generic argument --> $DIR/lang-item-generic-requirements.rs:28:1 | LL | #[lang = "owned_box"] | ^^^^^^^^^^^^^^^^^^^^^ LL | LL | struct Foo; | - this struct has 0 generic arguments error[E0718]: `start` language item must be applied to a function with 1 generic argument --> $DIR/lang-item-generic-requirements.rs:34:1 | LL | #[lang = "start"] | ^^^^^^^^^^^^^^^^^ LL | LL | fn start(_: *const u8, _: isize, _: *const *const u8) -> isize { | - this function has 0 generic arguments error[E0392]: parameter `T` is never used --> $DIR/lang-item-generic-requirements.rs:24:22 | LL | struct MyPhantomData; | ^ unused parameter | = help: consider removing `T` or referring to it in a field = help: if you intended `T` to be a const parameter, use `const T: usize` instead error[E0392]: parameter `U` is never used --> $DIR/lang-item-generic-requirements.rs:24:25 | LL | struct MyPhantomData; | ^ unused parameter | = help: consider removing `U` or referring to it in a field = help: if you intended `U` to be a const parameter, use `const U: usize` instead error: aborting due to 8 previous errors Some errors have detailed explanations: E0392, E0718. For more information about an error, try `rustc --explain E0392`.