// https://github.com/matthieu-m/rfc2580/blob/b58d1d3cba0d4b5e859d3617ea2d0943aaa31329/examples/thin.rs
// by matthieu-m
use crate::alloc::{self, Layout, LayoutError};
-#[cfg(not(bootstrap))]
use core::error::Error;
use core::fmt::{self, Debug, Display, Formatter};
use core::marker::PhantomData;
}
}
-#[cfg(not(bootstrap))]
#[unstable(feature = "thin_box", issue = "92791")]
impl<T: ?Sized + Error> Error for ThinBox<T> {
fn source(&self) -> Option<&(dyn Error + 'static)> {