use pseudo_backtrace::StackError;
#[derive(Debug, StackError)]
struct DupStdAttr {
#[stack_error(std)]
#[stack_error(std)]
source: std::io::Error,
#[location]
location: &'static core::panic::Location<'static>,
}
impl core::fmt::Display for DupStdAttr {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
"dup".fmt(f)
}
}
impl core::error::Error for DupStdAttr {}
fn main() {}