Add the changed log level to the CHANGELOG; fix imports

Author: ivmarkov

CHANGELOG.md

@@ -0,0 +1,11 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Fixed
+- Lower the log level of logs in tight places from `debug!` to `trace!`

src/reactor.rs

@@ -8,7 +8,7 @@ use std::sync::MutexGuard;
 
 use enumset::{EnumSet, EnumSetType};
 
-use log::{debug, info};
+use log::{debug, info, trace};
 
 use libc as sys;