{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"env::var(\"CARGO_MANIFEST_DIR\").expect(\"`CARGO_MANIFEST_DIR`"}]}
        env::var("CARGO_MANIFEST_DIR").expect("`CARGO_MANIFEST_DIR` is always set by cargo."),
    let mut manifest_dir = PathBuf::from(
    );