feat: make logging non-blocking

Cargo.lock

@@ -1769,6 +1769,7 @@ dependencies = [
  "tokio-websockets 0.11.4",
  "tokio-websockets 0.13.2",
  "tracing",
+ "tracing-appender",
  "tracing-subscriber",
  "twilight-gateway",
  "twilight-http",
@@ -6613,6 +6614,12 @@ dependencies = [
  "thiserror 2.0.17",
 ]
 
+[[package]]
+name = "symlink"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7973cce6668464ea31f176d85b13c7ab3bba2cb3b77a2ed26abd7801688010a"
+
 [[package]]
 name = "symphonia"
 version = "0.5.5"
@@ -7147,6 +7154,19 @@ dependencies = [
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-appender"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "050686193eb999b4bb3bc2acfa891a13da00f79734704c4b8b4ef1a10b368a3c"
+dependencies = [
+ "crossbeam-channel",
+ "symlink",
+ "thiserror 2.0.17",
+ "time",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "tracing-attributes"
 version = "0.1.31"

Cargo.toml

@@ -95,6 +95,7 @@ twilight-model = "0.17"
 twilight-util = { version = "0.17", features = ["builder"] }
 typed-builder = "0.23.2"
 yoke = "0.8.2"
+tracing-appender = "0.2.5"
 
 [build-dependencies]
 capnpc = "0.25.3"

src/main.rs

@@ -173,10 +173,13 @@ async fn main() -> Result<(), MainError> {
 
     let LoggingArgs { env_filter } = logging_args;
 
+    let (non_blocking_writer, _guard) = tracing_appender::non_blocking(std::io::stdout());
+
     tracing_subscriber::fmt()
         .pretty()
         .with_env_filter(env_filter)
         .with_span_events(FmtSpan::NEW | FmtSpan::CLOSE)
+        .with_writer(non_blocking_writer)
         .init();
 
     tracing::debug!(?app_args, "using");