syntax_data: {"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Used in the probe that wraps normalizing the non-self type for the unsize
context_before:     TraitCandidate { source: CandidateSource<I>, result: QueryResult<I> },
context_after:     /// trait, which is also structurally matched on.