syntax_data: {"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":".unwrap_or_else(|e|"}]}
source_snippet:         .unwrap_or_else(|e| early_dcx.early_fatal(e));
context_before:     let crate_types = parse_crate_types_from_list(unparsed_crate_types)