syntax_data: {"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"info!(\"Using"}]}
source_snippet:                 info!("Using method span: {:?}", expr.span);
context_before:                 let expr = self.method_callee(expr, segment.ident.span, None);
context_after:                 let args = std::iter::once(receiver)