disable error logging by default.

lots of very beningn things produce error level logs. E.g. connections being
dropped. We don't want error logs during normal operation.

iroh-bytes/src/store/traits.rs

@@ -34,6 +34,8 @@ pub enum EntryStatus {
 }
 
 /// An entry in a store that supports partial entries.
+///
+/// This correspnds to [`EntryStatus`], but also includes the entry itself.
 #[derive(Debug)]
 pub enum PossiblyPartialEntry<D: PartialMap> {
     /// A complete entry.

iroh/src/main.rs

@@ -2,6 +2,7 @@ use std::time::Duration;
 
 use anyhow::Result;
 use clap::Parser;
+use tracing::level_filters::LevelFilter;
 use tracing_subscriber::{prelude::*, EnvFilter};
 
 mod commands;
@@ -27,7 +28,11 @@ async fn main_impl() -> Result<()> {
     let lp = tokio_util::task::LocalPoolHandle::new(num_cpus::get());
     tracing_subscriber::registry()
         .with(tracing_subscriber::fmt::layer().with_writer(std::io::stderr))
-        .with(EnvFilter::from_default_env())
+        .with(
+            EnvFilter::builder()
+                .with_default_directive(LevelFilter::OFF.into())
+                .from_env_lossy(),
+        )
         .init();
 
     let cli = Cli::parse();