Can't get tracing to work

[Dominux]

Hi, I'm trying to set up logging/tracing. But it seems to be not working at all. I feel like I'm doing something completely wrong cause in all other frameworks I've used in my experience it wasn't a problem at all, I was even configuring logging. But here it seems like it just traces nothing no matter what features I toggle or what example from the docs I implement

So, here's my deps:

axum = { version = "0.6.20", features = ["tracing"]}
tokio = { version = "1.33.0", features = ["full"] }
tower-http = { version = "0.4.4", features = ["trace"] }
tracing = "0.1.40"
tracing-subscriber = { version = "0.3.17", features = ["env-filter"]} 

And my code:

use std::net::{IpAddr, Ipv4Addr, SocketAddr};

use axum::{routing::get, Router};
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};

const ADDR: SocketAddr = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), 8080);

#[tokio::main]
async fn main() {
    tracing_subscriber::registry()
        .with(
            tracing_subscriber::EnvFilter::try_from_default_env().unwrap_or_else(|_| {
                "my_app=debug,tower_http=debug,axum::rejection=trace".into()
            }),
        )
        .with(tracing_subscriber::fmt::layer())
        .init();

    // build our application with a single route
    let app = Router::new().route("/", get(|| async { "Hello, World!" }));

    // run it
    tracing::debug!("listening on {ADDR}");
    axum::Server::bind(&ADDR)
        .serve(app.into_make_service())
        .await
        .unwrap();
}

So here I got a debug message that... doesn't print anything. And it doesn't print anything also no matter whether I try to change to tracing::info! or to tracing::error!. And it doesn't print anything on requests.

What am I missing?

[ssddOnTop]

It says this discussion is closed, but I am facing the same issue.. is there any solution?

[mladedav]

The code seems like it should work. Assuming the crate is called my_app of course. And you don't have RUST_LOG set.

Try posting your code (ideally a runnable repro of any issues you have) and we'll see if there are some issues. Also you can just try using "trace" for the env filter, ideally ignoring env variables and then go from there.