in src/errors.rs [928:936]
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
if let Some(description) = &self.description {
write!(f, "{}:\n{}", self.source, description)
} else if let Some(description_url) = &self.description_url {
write!(f, "{}:\n(URL) {}", self.source, description_url)
} else {
write!(f, "{}:\n(no description)", self.source)
}
}