| #![feature(staged_api)] |
| #![allow(internal_features)] |
| #![stable(feature = "unit_test", since = "1.0.0")] |
| |
| #[unstable(feature = "step_trait", issue = "42168")] |
| pub trait Unstable {} |
| |
| #[stable(feature = "unit_test", since = "1.0.0")] |
| fn foo<T: Unstable>(_: T) {} |
| |
| #[stable(feature = "unit_test", since = "1.0.0")] |
| pub fn bar<T>(t: T) { //~ HELP consider restricting type parameter `T` with unstable trait `Unstable` |
| foo(t) //~ ERROR E0277 |
| } |
| #[stable(feature = "unit_test", since = "1.0.0")] |
| pub fn baz<T>(t: std::ops::Range<T>) { //~ HELP consider restricting type parameter `T` with unstable trait |
| for _ in t {} //~ ERROR E0277 |
| } |
| fn main() {} |
