Macro etrace::rethrow_err

macro_rules! rethrow_err {
    ($kind:expr, $description:expr, $suberr:expr) => { ... };
    ($kind:expr, $suberr:expr) => { ... };
    ($suberr:expr) => { ... };
}

Creates a new error with a sub-error and returns it (return Err(created_error))

Use rethrow_err!(error) to create an error with the same kind or use rethrow_err!(kind, error) to provide a new error-kind or use rethrow_err!(kind, description, error) to provide a new error-kind with an explicit description