{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":")"}]}
) -> anyhow::Result<(RootDatabase, vfs::Vfs, Option<ProcMacroClient>)> {
    progress: &(dyn Fn(String) + Sync),
    let root = AbsPathBuf::assert_utf8(std::env::current_dir()?.join(root));