tests/ui/consts/static-default-lifetime/static-trait-impl.rs

#![deny(elided_lifetimes_in_associated_constant)]

trait Bar<'a> {
    const STATIC: &'a str;
}

struct A;
impl Bar<'_> for A {
    const STATIC: &str = "";
    //~^ ERROR `&` without an explicit lifetime name cannot be used here
    //~| WARN this was previously accepted by the compiler but is being phased out
    //~| ERROR const not compatible with trait
}

struct B;
impl Bar<'static> for B {
    const STATIC: &str = "";
}

fn main() {}