#![feature(fn_delegation)] #![allow(incomplete_features)] trait Trait { fn method() {} } reuse Trait::*; //~ ERROR glob delegation is only supported in impls trait OtherTrait { reuse Trait::*; //~ ERROR glob delegation is only supported in impls } extern { reuse Trait::*; //~ ERROR delegation is not supported in `extern` blocks } fn main() { reuse Trait::*; //~ ERROR glob delegation is only supported in impls }