syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"#[derive(Debug,"}]}
source_snippet: #[derive(Debug, Hash, Eq, PartialEq, PartialOrd, Ord, Clone)]
context_before: /// Answers "why wasn't the source type transmutable into the destination type?"
context_after: pub enum Reason<T> {