Simple Example compling error "no method named for_each found for type"

Simple Example source code from https://docs.rs/tiberius/0.3.1/tiberius/ //----------------------------------------------------------------------------------------------- [ extern crate tiberius; use futures::Future; use futures_state_stream::StateStream; use tokio::executor::current_thread; use tiberius::SqlConnection;

fn main() {

// 1: for windows we demonstrate the hardcoded variant
// which is equivalent to:
//     let conn_str = "server=tcp:localhost,1433;integratedSecurity=true;";
//     let future = SqlConnection::connect(conn_str).and_then(|conn| {
// and for linux we use the connection string from an environment variable
let conn_str = if cfg!(windows) {
    "server=tcp:localhost,1433;integratedSecurity=true;".to_owned()
} else {
    ::std::env::var("TIBERIUS_TEST_CONNECTION_STRING").unwrap()
};

let future = SqlConnection::connect(conn_str.as_str())
    .and_then(|conn| {
        conn.simple_query("SELECT 1+2").for_each(|row| {
            let val: i32 = row.get(0);
            assert_eq!(val, 3i32);
            Ok(())
        })
    })
    .and_then(|conn| conn.simple_exec("create table #Temp(gg int);"))
    .and_then(|(_, conn)| conn.simple_exec("UPDATE #Temp SET gg=1 WHERE gg=1"));

current_thread::block_on_all(future).unwrap();

} ] //-----------------------------------------------------------------------------------------------

it can not be compiled, it reported "error[E0599]: no method named `for_each` found for type "

C:/Users/Administrator/.cargo/bin/cargo.exe run --package mssql --bin mssql Compiling mssql v0.1.0 (D:\rust\mssql) warning: use of deprecated item 'tokio::executor::current_thread': use tokio-current-thread crate or functions in tokio::runtime::current_thread instead --> src\main.rs:7:5	7	use tokio::executor::current_thread;	^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

= note: #[warn(deprecated)] on by default

error[E0599]: no method named `for_each` found for type `tiberius::stmt::QueryResult<tiberius::query::ResultSetStream<std::boxed::Box<dyn tiberius::BoxableIo>, tiberius::query::QueryStream<std::boxed::Box<dyn tiberius::BoxableIo>>>>` in the current scope --> src\main.rs:25:45	25	conn.simple_query("SELECT 1+2").for_each(	row	{	^^^^^^^^

= note: the method `for_each` exists but the following trait bounds were not satisfied: `&mut tiberius::stmt::QueryResult<tiberius::query::ResultSetStream<std::boxed::Box<dyn tiberius::BoxableIo>, tiberius::query::QueryStream<std::boxed::Box<dyn tiberius::BoxableIo>>>> : futures_state_stream::StateStream` `&mut tiberius::stmt::QueryResult<tiberius::query::ResultSetStream<std::boxed::Box<dyn tiberius::BoxableIo>, tiberius::query::QueryStream<std::boxed::Box<dyn tiberius::BoxableIo>>>> : std::iter::Iterator` = help: items from traits can only be used if the trait is in scope help: the following trait is implemented but not in scope, perhaps add a `use` for it:	5	use futures_state_stream::StateStream;

error: aborting due to previous error

For more information about this error, try rustc --explain E0599. error: Could not compile mssql.

To learn more, run the command again with --verbose.

Process finished with exit code 101

steffengy / tiberius