{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"PathBuf::from(tracked_env_var_os(\"LLVM_CONFIG\").expect(\"LLVM_CONFIG"}]}
        PathBuf::from(tracked_env_var_os("LLVM_CONFIG").expect("LLVM_CONFIG was not set"));
    let llvm_config =