When I run this code the `println`'s do not output in the terminal. 
```rust
#[tokio::test]
async fn can_fetch_child_keys() {
	if std::option_env!("TEST_WS").is_none() {
		return
	}
	init_logger();
	let child_keys = Builder::<Block>::new()
		.mode(Mode::Online(OnlineConfig {
			transport: std::option_env!("TEST_WS").unwrap().to_owned().into(),
			pallets: vec!["Contracts".to_owned()],
			child_trie: true,
			..Default::default()
		}))
		.build()
		.await
		.unwrap()
		.execute_with(|| {
			let child_keys = sp_io::storage::next_key(&[]).expect("some key must exist in the snapshot");
			assert!(sp_io::storage::get(&child_keys).is_some());
			child_keys
		});
	assert!(child_keys.len() > 0);
	
	println!("child_keys: {:?}", child_keys);
	println!("👩‍👦 child_keys.len(): {:?}", child_keys.len());
}
```
I have tried using ` -- --nocapture`. 

Any suggestions on how to output in the terminal for debugging purposes?