Doesn't work with /examples folder

[setoelkahfi]

Hello, this log doesn't seem to work with the Cargo examples directory. Is it by design?

I have a basic.rs file inside my examples folder crate. This doesn't print the log information:

use std::env;
use log::{debug, error, info};

#[tokio::main]
async fn main() {
  debug!("Try to run the example");
  // Some other lines...

This one does:

use std::env;
use log::{debug, error, info};

#[tokio::main]
async fn main() {
  println!("Try to run the example");
  // Some other lines...

I ran that example with: cargo run --example basic

[Thomasdezeeuw]

@setoelkahfi the log crate only provides a logging facade, you'll also need an implementation that does the actual logging. See one of the implementation in https://github.com/rust-lang/log?tab=readme-ov-file#in-executables.

[setoelkahfi]

@Thomasdezeeuw I'm building a library. And per the readme, I should only link the log crate.

[Thomasdezeeuw]

@Thomasdezeeuw I'm building a library. And per the readme, I should only link the log crate.

Yes. Then you can add an implementation as dev-dependency (https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#development-dependencies), which you can use in the examples, but it will not get added to your library.

[setoelkahfi]

I don't think I get this. I tried to use the env_logger one, for example, I tried to init it in my lib.rs file, but it says Syntax Error: expected BANGrust-analyzer[syntax-error](https://doc.rust-lang.org/stable/reference/)

use crate::model::{ErrorDetail, ErrorResponseCode, Link, SessionError};
use log::{debug, info};
use reqwest::{Client, Response, StatusCode};

env_logger::init(); // Can't do

Do I need to specify a specific feature?

[Thomasdezeeuw]

In Rust you can't put a statement like that at the top level of the source code.

You can put in the main function of your example. For example:

#[tokio::main]
async fn main() {
    env_logger::init();
    log::info!("It worked");
}