syntax_data: {"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"Box::new(HumanEmitter::new(stderr_destination(ColorConfig::Auto),"}]}
source_snippet:             Box::new(HumanEmitter::new(stderr_destination(ColorConfig::Auto), translator));
context_before:         let fatal_emitter =
context_after:         let dcx = DiagCtxt::new(Box::new(FatalOnlyEmitter {