Function non_blocking 

pub fn non_blocking<T>(writer: T) -> (NonBlocking, WorkerGuard)
where
    T: Write + Send + 'static,

Convenience function for creating a non-blocking, off-thread writer.

See the non_blocking module’s docs’s for more details.

Examples

let (non_blocking, _guard) = tracing_appender::non_blocking(std::io::stdout());
let subscriber = tracing_subscriber::fmt().with_writer(non_blocking);
tracing::subscriber::with_default(subscriber.finish(), || {
   tracing::event!(tracing::Level::INFO, "Hello");
});