syntax_data: {"ast_node_type":"other","tokens":[{"end":24,"kind":"keyword","start":0,"text":".to_owned();"}]}
source_snippet:             .to_owned();
context_before:             .expect("target path must be valid unicode")
context_after:         Ok(TargetTuple::TargetJson { path_for_rustdoc: canonicalized_path, tuple, contents })