common options for tracing subscriber logging to console

tracing_subscriber.rs

fn subscriber() -> impl tracing::subscriber::Subscriber {
    use tracing_subscriber::{fmt::format::FmtSpan, prelude::*};
    tracing_subscriber::registry()
        .with(tracing_subscriber::EnvFilter::from_default_env())
        .with(
            tracing_subscriber::fmt::layer()
                .compact()
                .with_target(false)
                .without_time()
                .with_span_events(FmtSpan::CLOSE),
        )
}
tracing::subscriber::set_global_default(subscriber()).unwrap();