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#[lang = "sized"] pub trait Sized {} trait Foo { fn default() -> i32; } struct Bar(i32); fn type_bound_test<T: Foo>() -> i32 { T::default() } fn main() { let a; a = type_bound_test::<Bar>(); // { dg-error "bounds not satisfied for Bar" "" { target *-*-* } .-1 } }