#![cfg_attr(
feature = "unstable-error-generic-member-access",
feature(error_generic_member_access)
)]
use oopsie::Oopsie;
// Two trace-typed backtrace fields would each auto-enable capture; the second
// silently double-captures while only the first is exposed, so the derive
// rejects the ambiguity.
#[derive(Debug, Oopsie)]
#[oopsie(module(false))]
#[oopsie("two backtrace fields")]
struct E {
first: oopsie::Backtrace,
second: oopsie::Backtrace,
}
fn main() {}