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use std::fmt::Debug;
trait Str {}
trait Something: Sized {
fn yay<T: Debug>(_: Option<Self>, thing: &[T]);
}
struct X { data: u32 }
impl Something for X {
fn yay<T: Str>(_:Option<X>, thing: &[T]) {
//~^ ERROR E0276
}
}
fn main() {
let arr = &["one", "two", "three"];
println!("{:?}", Something::yay(None::<X>, arr));
}
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