{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"llvm::LLVMRustGetTargetFeature(tm,"}]}
            llvm::LLVMRustGetTargetFeature(tm, i, &mut feature, &mut desc);
            let mut desc = ptr::null();
            if feature.is_null() || desc.is_null() {