diff --git a/src/config.rs b/src/config.rs
index 64051c7d..2f0c9923 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -91,49 +91,49 @@ impl ConfigBuilder {
     }
 
     /// Set at which level and above (more verbose) the level itself shall be logged (default is Error)
-    pub fn set_max_level<'a>(&'a mut self, level: LevelFilter) -> &'a mut ConfigBuilder {
+    pub fn set_max_level(&mut self, level: LevelFilter) -> &mut ConfigBuilder {
         self.0.level = level;
         self
     }
 
     /// Set at which level and  above (more verbose) the current time shall be logged (default is Error)
-    pub fn set_time_level<'a>(&'a mut self, time: LevelFilter) -> &'a mut ConfigBuilder {
+    pub fn set_time_level(&mut self, time: LevelFilter) -> &mut ConfigBuilder {
         self.0.time = time;
         self
     }
 
     /// Set at which level and above (more verbose) the thread id shall be logged. (default is Debug)
-    pub fn set_thread_level<'a>(&'a mut self, thread: LevelFilter) -> &'a mut ConfigBuilder {
+    pub fn set_thread_level(&mut self, thread: LevelFilter) -> &mut ConfigBuilder {
         self.0.thread = thread;
         self
     }
 
     /// Set at which level and above (more verbose) the target shall be logged. (default is Debug)
-    pub fn set_target_level<'a>(&'a mut self, target: LevelFilter) -> &'a mut ConfigBuilder {
+    pub fn set_target_level(&mut self, target: LevelFilter) -> &mut ConfigBuilder {
         self.0.target = target;
         self
     }
 
     /// Set at which level and above (more verbose) a source code reference shall be logged (default is Trace)
-    pub fn set_location_level<'a>(&'a mut self, location: LevelFilter) -> &'a mut ConfigBuilder {
+    pub fn set_location_level(&mut self, location: LevelFilter) -> &mut ConfigBuilder {
         self.0.location = location;
         self
     }
 
     /// Set how the levels should be padded, when logging (default is Left)
-    pub fn set_level_padding<'a>(&'a mut self, padding: LevelPadding) -> &'a mut ConfigBuilder {
+    pub fn set_level_padding(&mut self, padding: LevelPadding) -> &mut ConfigBuilder {
         self.0.level_padding = padding;
         self
     }
 
     /// Set how the thread should be padded
-    pub fn set_thread_padding<'a>(&'a mut self, padding: ThreadPadding) -> &'a mut ConfigBuilder {
+    pub fn set_thread_padding(&mut self, padding: ThreadPadding) -> &mut ConfigBuilder {
         self.0.thread_padding = padding;
         self
     }
 
     /// Set the mode for logging the thread
-    pub fn set_thread_mode<'a>(&'a mut self, mode: ThreadLogMode) -> &'a mut ConfigBuilder {
+    pub fn set_thread_mode(&mut self, mode: ThreadLogMode) -> &mut ConfigBuilder {
         self.0.thread_log_mode = mode;
         self
     }
@@ -141,11 +141,7 @@ impl ConfigBuilder {
     /// Set the color used for printing the level (if the logger supports it),
     /// or None to use the default foreground color
     #[cfg(feature = "termcolor")]
-    pub fn set_level_color<'a>(
-        &'a mut self,
-        level: Level,
-        color: Option<Color>,
-    ) -> &'a mut ConfigBuilder {
+    pub fn set_level_color(&mut self, level: Level, color: Option<Color>) -> &mut ConfigBuilder {
         self.0.level_color[level as usize] = color;
         self
     }
@@ -153,10 +149,7 @@ impl ConfigBuilder {
     /// Set time chrono [strftime] format string.
     ///
     /// [strftime]: https://docs.rs/chrono/0.4.0/chrono/format/strftime/index.html#specifiers
-    pub fn set_time_format_str<'a>(
-        &'a mut self,
-        time_format: &'static str,
-    ) -> &'a mut ConfigBuilder {
+    pub fn set_time_format_str(&mut self, time_format: &'static str) -> &mut ConfigBuilder {
         self.0.time_format = Cow::Borrowed(time_format);
         self
     }
@@ -164,19 +157,19 @@ impl ConfigBuilder {
     /// Set time chrono [strftime] format string.
     ///
     /// [strftime]: https://docs.rs/chrono/0.4.0/chrono/format/strftime/index.html#specifiers
-    pub fn set_time_format<'a>(&'a mut self, time_format: String) -> &'a mut ConfigBuilder {
+    pub fn set_time_format(&mut self, time_format: String) -> &mut ConfigBuilder {
         self.0.time_format = Cow::Owned(time_format);
         self
     }
 
     /// Set offset used for logging time (default is 0)
-    pub fn set_time_offset<'a>(&'a mut self, time_offset: FixedOffset) -> &'a mut ConfigBuilder {
+    pub fn set_time_offset(&mut self, time_offset: FixedOffset) -> &mut ConfigBuilder {
         self.0.time_offset = time_offset;
         self
     }
 
     /// set if you log in local timezone or UTC (default is UTC)
-    pub fn set_time_to_local<'a>(&'a mut self, local: bool) -> &'a mut ConfigBuilder {
+    pub fn set_time_to_local(&mut self, local: bool) -> &mut ConfigBuilder {
         self.0.time_local = local;
         self
     }
@@ -185,10 +178,7 @@ impl ConfigBuilder {
     /// If any are specified, only records from modules starting with one of these entries will be printed
     ///
     /// For example, `add_filter_allow_str("tokio::uds")` would allow only logging from the `tokio` crates `uds` module.
-    pub fn add_filter_allow_str<'a>(
-        &'a mut self,
-        filter_allow: &'static str,
-    ) -> &'a mut ConfigBuilder {
+    pub fn add_filter_allow_str(&mut self, filter_allow: &'static str) -> &mut ConfigBuilder {
         let mut list = Vec::from(&*self.0.filter_allow);
         list.push(Cow::Borrowed(filter_allow));
         self.0.filter_allow = Cow::Owned(list);
@@ -199,7 +189,7 @@ impl ConfigBuilder {
     /// If any are specified, only records from modules starting with one of these entries will be printed
     ///
     /// For example, `add_filter_allow(format!("{}{}","tokio", "uds"))` would allow only logging from the `tokio` crates `uds` module.
-    pub fn add_filter_allow<'a>(&'a mut self, filter_allow: String) -> &'a mut ConfigBuilder {
+    pub fn add_filter_allow(&mut self, filter_allow: String) -> &mut ConfigBuilder {
         let mut list = Vec::from(&*self.0.filter_allow);
         list.push(Cow::Owned(filter_allow));
         self.0.filter_allow = Cow::Owned(list);
@@ -208,7 +198,7 @@ impl ConfigBuilder {
 
     /// Clear allowed module filters.
     /// If none are specified, nothing is filtered out
-    pub fn clear_filter_allow<'a>(&'a mut self) -> &'a mut ConfigBuilder {
+    pub fn clear_filter_allow(&mut self) -> &mut ConfigBuilder {
         self.0.filter_allow = Cow::Borrowed(&[]);
         self
     }
@@ -217,10 +207,7 @@ impl ConfigBuilder {
     /// If any are specified, records from modules starting with one of these entries will be ignored
     ///
     /// For example, `add_filter_ignore_str("tokio::uds")` would deny logging from the `tokio` crates `uds` module.
-    pub fn add_filter_ignore_str<'a>(
-        &'a mut self,
-        filter_ignore: &'static str,
-    ) -> &'a mut ConfigBuilder {
+    pub fn add_filter_ignore_str(&mut self, filter_ignore: &'static str) -> &mut ConfigBuilder {
         let mut list = Vec::from(&*self.0.filter_ignore);
         list.push(Cow::Borrowed(filter_ignore));
         self.0.filter_ignore = Cow::Owned(list);
@@ -231,7 +218,7 @@ impl ConfigBuilder {
     /// If any are specified, records from modules starting with one of these entries will be ignored
     ///
     /// For example, `add_filter_ignore(format!("{}{}","tokio", "uds"))` would deny logging from the `tokio` crates `uds` module.
-    pub fn add_filter_ignore<'a>(&'a mut self, filter_ignore: String) -> &'a mut ConfigBuilder {
+    pub fn add_filter_ignore(&mut self, filter_ignore: String) -> &mut ConfigBuilder {
         let mut list = Vec::from(&*self.0.filter_ignore);
         list.push(Cow::Owned(filter_ignore));
         self.0.filter_ignore = Cow::Owned(list);
@@ -240,7 +227,7 @@ impl ConfigBuilder {
 
     /// Clear ignore module filters.
     /// If none are specified, nothing is filtered
-    pub fn clear_filter_ignore<'a>(&'a mut self) -> &'a mut ConfigBuilder {
+    pub fn clear_filter_ignore(&mut self) -> &mut ConfigBuilder {
         self.0.filter_ignore = Cow::Borrowed(&[]);
         self
     }
@@ -251,6 +238,12 @@ impl ConfigBuilder {
     }
 }
 
+impl Default for ConfigBuilder {
+    fn default() -> Self {
+        ConfigBuilder::new()
+    }
+}
+
 impl Default for Config {
     fn default() -> Config {
         Config {
diff --git a/src/loggers/comblog.rs b/src/loggers/comblog.rs
index 693fa1a7..103b041d 100644
--- a/src/loggers/comblog.rs
+++ b/src/loggers/comblog.rs
@@ -84,7 +84,7 @@ impl CombinedLogger {
 
         Box::new(CombinedLogger {
             level: log_level,
-            logger: logger,
+            logger,
         })
     }
 }
diff --git a/src/loggers/logging.rs b/src/loggers/logging.rs
index ef22fe6d..cb3b9e4b 100644
--- a/src/loggers/logging.rs
+++ b/src/loggers/logging.rs
@@ -1,5 +1,4 @@
 use crate::{Config, LevelPadding, ThreadLogMode, ThreadPadding};
-use chrono;
 use log::{LevelFilter, Record};
 use std::io::{Error, Write};
 use std::thread;
@@ -151,9 +150,9 @@ where
 pub fn should_skip(config: &Config, record: &Record<'_>) -> bool {
     // If a module path and allowed list are available
     match (record.target(), &*config.filter_allow) {
-        (path, allowed) if allowed.len() > 0 => {
+        (path, allowed) if !allowed.is_empty() => {
             // Check that the module path matches at least one allow filter
-            if let None = allowed.iter().find(|v| path.starts_with(&***v)) {
+            if !allowed.iter().any(|v| path.starts_with(&**v)) {
                 // If not, skip any further writing
                 return true;
             }
@@ -163,9 +162,9 @@ pub fn should_skip(config: &Config, record: &Record<'_>) -> bool {
 
     // If a module path and ignore list are available
     match (record.target(), &*config.filter_ignore) {
-        (path, ignore) if ignore.len() > 0 => {
+        (path, ignore) if !ignore.is_empty() => {
             // Check that the module path does not match any ignore filters
-            if let Some(_) = ignore.iter().find(|v| path.starts_with(&***v)) {
+            if ignore.iter().any(|v| path.starts_with(&**v)) {
                 // If not, skip any further writing
                 return true;
             }
@@ -173,5 +172,5 @@ pub fn should_skip(config: &Config, record: &Record<'_>) -> bool {
         _ => {}
     }
 
-    return false;
+    false
 }
diff --git a/src/loggers/simplelog.rs b/src/loggers/simplelog.rs
index 9dedc11f..f3a5773c 100644
--- a/src/loggers/simplelog.rs
+++ b/src/loggers/simplelog.rs
@@ -37,7 +37,7 @@ impl SimpleLogger {
     /// # }
     /// ```
     pub fn init(log_level: LevelFilter, config: Config) -> Result<(), SetLoggerError> {
-        set_max_level(log_level.clone());
+        set_max_level(log_level);
         set_boxed_logger(SimpleLogger::new(log_level, config))
     }
 
@@ -59,7 +59,7 @@ impl SimpleLogger {
     pub fn new(log_level: LevelFilter, config: Config) -> Box<SimpleLogger> {
         Box::new(SimpleLogger {
             level: log_level,
-            config: config,
+            config,
             output_lock: Mutex::new(()),
         })
     }
diff --git a/src/loggers/termlog.rs b/src/loggers/termlog.rs
index c1098452..cfdfb459 100644
--- a/src/loggers/termlog.rs
+++ b/src/loggers/termlog.rs
@@ -5,7 +5,6 @@ use log::{
 };
 use std::io::{Error, Write};
 use std::sync::Mutex;
-use termcolor;
 use termcolor::{ColorChoice, ColorSpec, StandardStream, WriteColor};
 
 use super::logging::*;
@@ -83,7 +82,7 @@ impl TermLogger {
         color_choice: ColorChoice,
     ) -> Result<(), SetLoggerError> {
         let logger = TermLogger::new(log_level, config, mode, color_choice);
-        set_max_level(log_level.clone());
+        set_max_level(log_level);
         set_boxed_logger(logger)?;
         Ok(())
     }
@@ -133,7 +132,7 @@ impl TermLogger {
 
         Box::new(TermLogger {
             level: log_level,
-            config: config,
+            config,
             streams: Mutex::new(streams),
         })
     }
diff --git a/src/loggers/testlog.rs b/src/loggers/testlog.rs
index 3a575016..2c616442 100644
--- a/src/loggers/testlog.rs
+++ b/src/loggers/testlog.rs
@@ -38,7 +38,7 @@ impl TestLogger {
     /// # }
     /// ```
     pub fn init(log_level: LevelFilter, config: Config) -> Result<(), SetLoggerError> {
-        set_max_level(log_level.clone());
+        set_max_level(log_level);
         set_boxed_logger(TestLogger::new(log_level, config))
     }
 
diff --git a/src/loggers/writelog.rs b/src/loggers/writelog.rs
index aa163bd9..0624d8d2 100644
--- a/src/loggers/writelog.rs
+++ b/src/loggers/writelog.rs
@@ -36,7 +36,7 @@ impl<W: Write + Send + 'static> WriteLogger<W> {
     /// # }
     /// ```
     pub fn init(log_level: LevelFilter, config: Config, writable: W) -> Result<(), SetLoggerError> {
-        set_max_level(log_level.clone());
+        set_max_level(log_level);
         set_boxed_logger(WriteLogger::new(log_level, config, writable))
     }
 
@@ -59,7 +59,7 @@ impl<W: Write + Send + 'static> WriteLogger<W> {
     pub fn new(log_level: LevelFilter, config: Config, writable: W) -> Box<WriteLogger<W>> {
         Box::new(WriteLogger {
             level: log_level,
-            config: config,
+            config,
             writable: Mutex::new(writable),
         })
     }