syntax_data: {"ast_node_type":"other","tokens":[{"end":25,"kind":"keyword","start":0,"text":"span,"}]}
source_snippet:                     span,
context_before:                 UnsafeOpInUnsafeFnCallToUnsafeFunctionRequiresUnsafe {
context_after:                     function: with_no_trimmed_paths!(tcx.def_path_str(*did)),