rust/tests/ui/traits/trait-object-lifetime-default-note.rs

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trait A {}
impl<T> A for T {}
fn main() {
let local = 0; //~ NOTE binding `local` declared here
let r = &local; //~ ERROR `local` does not live long enough
//~| NOTE borrowed value does not live long enough
//~| NOTE due to object lifetime defaults, `Box<dyn A>` actually means `Box<(dyn A + 'static)>`
require_box(Box::new(r));
//~^ NOTE cast requires that `local` is borrowed for `'static`
let _ = 0;
} //~ NOTE `local` dropped here while still borrowed
fn require_box(_a: Box<dyn A>) {}