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use core::fmt::Debug;
use thiserror::Error;
#[derive(Error, Debug)]
#[error("error")]
struct Error<'a>(#[from] Inner<'a>);
#[derive(Error, Debug)]
#[error("{0}")]
struct Inner<'a>(&'a str);
#[derive(Error, Debug)]
enum Enum<'a> {
#[error("error")]
Foo(#[from] Generic<&'a str>),
}
#[derive(Error, Debug)]
#[error("{0:?}")]
struct Generic<T: Debug>(T);
fn main() -> Result<(), Error<'static>> {
Err(Error(Inner("some text")))
}