thiserror_core2 2.0.1

derive(Error) (no_std-enabled using core2)
Documentation 
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// https://github.com/dtolnay/thiserror/issues/163

#![feature(backtrace)]

use core2::backtrace::Backtrace;
use thiserror::Error;

#[derive(Error, Debug)]
#[error("...")]
pub struct Error(#[from] #[backtrace] core2::io::Error, Backtrace);

fn main() {}