Change references of env_logger to tracing-subscriber

Cargo.toml

@@ -29,7 +29,7 @@ version = "0.12.4"
 # For the examples
 tokio = { version = "1.25.1", features = ["rt-multi-thread"] }
 futures = { version = "0.3.13", default-features = false }
-env_logger = "0.10.1"
+tracing-subscriber = "0.3.18"
 fluent = "0.16.0"
 intl-memoizer = "0.5.1"
 fluent-syntax = "0.11"

examples/basic_structure/main.rs

@@ -38,7 +38,7 @@ async fn on_error(error: poise::FrameworkError<'_, Data, Error>) {
 
 #[tokio::main]
 async fn main() {
-    env_logger::init();
+    tracing_subscriber::fmt::init();
 
     // FrameworkOptions contains all of poise's configuration option in one struct
     // Every option can be omitted to use its default value

examples/event_handler/main.rs

@@ -15,7 +15,7 @@ pub struct Data {
 
 #[tokio::main]
 async fn main() {
-    env_logger::init();
+    tracing_subscriber::fmt::init();
 
     let token = var("DISCORD_TOKEN")
         .expect("Missing `DISCORD_TOKEN` env var, see README for more information.");

examples/feature_showcase/main.rs

@@ -29,7 +29,7 @@ pub struct Data {}
 
 #[tokio::main]
 async fn main() {
-    env_logger::init();
+    tracing_subscriber::fmt::init();
 
     let framework = poise::Framework::builder()
         .options(poise::FrameworkOptions {

examples/fluent_localization/main.rs

@@ -58,7 +58,7 @@ async fn register(ctx: Context<'_>) -> Result<(), Error> {
 
 #[tokio::main]
 async fn main() {
-    env_logger::init();
+    tracing_subscriber::fmt::init();
 
     let mut commands = vec![welcome(), info(), register()];
     let translations = translation::read_ftl().expect("failed to read translation files");

src/builtins/mod.rs

@@ -20,7 +20,7 @@ pub use paginate::*;
 use crate::{serenity::CreateAllowedMentions, serenity_prelude as serenity, CreateReply};
 
 /// An error handler that logs errors either via the [`tracing`] crate or via a Discord message. Set
-/// up a logger (e.g. `env_logger::init()`) or a tracing subscriber
+/// up a logger like tracing subscriber
 /// (e.g. `tracing_subscriber::fmt::init()`) to see the logged errors from this method.
 ///
 /// If the user invoked the command wrong ([`crate::FrameworkError::ArgumentParse`]), the command