syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"for"}]}
source_snippet:     for warning in target_warnings.warning_messages() {
context_before:         .unwrap_or_else(|e| dcx.handle().fatal(format!("Error loading host specification: {e}")));
context_after:         dcx.handle().warn(warning)