diff --git a/mtop-client/src/dns/client.rs b/mtop-client/src/dns/client.rs
index c3911cb..09233ce 100644
--- a/mtop-client/src/dns/client.rs
+++ b/mtop-client/src/dns/client.rs
@@ -5,7 +5,7 @@ use crate::dns::name::Name;
 use crate::net::tcp_connect;
 use crate::pool::{ClientFactory, ClientPool, ClientPoolConfig};
 use crate::timeout::Timeout;
-use std::fmt::{self, Formatter};
+use std::fmt;
 use std::future::Future;
 use std::io::{self, Cursor, Error};
 use std::net::{IpAddr, Ipv4Addr, SocketAddr};
@@ -122,10 +122,10 @@ where
         let server = self.nameserver(attempt);
 
         let res = async {
-            let mut client = self.udp_pool.get(&server).await?;
-            let res = client.exchange(msg).await;
+            let mut conn = self.udp_pool.get(&server).await?;
+            let res = conn.exchange(msg).await;
             if res.is_ok() {
-                self.udp_pool.put(client).await;
+                self.udp_pool.put(conn).await;
             }
 
             res
@@ -138,10 +138,10 @@ where
         if res.flags().is_truncated() {
             tracing::debug!(message = "UDP response truncated, retrying with TCP", flags = ?res.flags(), server = %server);
             async {
-                let mut client = self.tcp_pool.get(&server).await?;
-                let res = client.exchange(msg).await;
+                let mut conn = self.tcp_pool.get(&server).await?;
+                let res = conn.exchange(msg).await;
                 if res.is_ok() {
-                    self.tcp_pool.put(client).await;
+                    self.tcp_pool.put(conn).await;
                 }
 
                 res
@@ -265,7 +265,7 @@ impl TcpConnection {
 }
 
 impl fmt::Debug for TcpConnection {
-    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(f, "TcpConnection {{ ... }}")
     }
 }
@@ -326,7 +326,7 @@ impl UdpConnection {
 }
 
 impl fmt::Debug for UdpConnection {
-    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(f, "UdpConnection {{ ... }}")
     }
 }
diff --git a/mtop-client/src/dns/core.rs b/mtop-client/src/dns/core.rs
index 867597f..2e26f3a 100644
--- a/mtop-client/src/dns/core.rs
+++ b/mtop-client/src/dns/core.rs
@@ -1,6 +1,5 @@
 use crate::core::MtopError;
-use std::fmt;
-use std::fmt::Display;
+use std::fmt::{self, Display};
 use std::str::FromStr;
 
 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
diff --git a/mtop-client/src/dns/message.rs b/mtop-client/src/dns/message.rs
index 10c61c2..92dde61 100644
--- a/mtop-client/src/dns/message.rs
+++ b/mtop-client/src/dns/message.rs
@@ -3,8 +3,7 @@ use crate::dns::core::{RecordClass, RecordType};
 use crate::dns::name::Name;
 use crate::dns::rdata::RecordData;
 use byteorder::{NetworkEndian, ReadBytesExt, WriteBytesExt};
-use std::fmt;
-use std::fmt::{Debug, Formatter};
+use std::fmt::{self, Debug};
 use std::io::Seek;
 
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
@@ -34,7 +33,7 @@ impl From<MessageId> for u16 {
 }
 
 impl fmt::Display for MessageId {
-    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(f, "{}", self.0)
     }
 }
diff --git a/mtop-client/src/dns/name.rs b/mtop-client/src/dns/name.rs
index dc64ebd..a7306b2 100644
--- a/mtop-client/src/dns/name.rs
+++ b/mtop-client/src/dns/name.rs
@@ -1,7 +1,6 @@
 use crate::core::MtopError;
 use byteorder::{ReadBytesExt, WriteBytesExt};
-use std::fmt;
-use std::fmt::Display;
+use std::fmt::{self, Display};
 use std::io::{Read, Seek, SeekFrom};
 use std::str::FromStr;
 
diff --git a/mtop-client/src/dns/rdata.rs b/mtop-client/src/dns/rdata.rs
index 86cef11..f23eaa7 100644
--- a/mtop-client/src/dns/rdata.rs
+++ b/mtop-client/src/dns/rdata.rs
@@ -2,7 +2,7 @@ use crate::core::MtopError;
 use crate::dns::core::RecordType;
 use crate::dns::name::Name;
 use byteorder::{BigEndian, NetworkEndian, ReadBytesExt, WriteBytesExt};
-use std::fmt::{self, Display, Formatter};
+use std::fmt::{self, Display};
 use std::io::{Read, Seek};
 use std::net::{Ipv4Addr, Ipv6Addr};
 
@@ -571,7 +571,7 @@ impl RecordDataOptPair {
 }
 
 impl Display for RecordDataOptPair {
-    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(f, "{}: {}", self.code, String::from_utf8_lossy(&self.data))
     }
 }
diff --git a/mtop/src/tracing.rs b/mtop/src/tracing.rs
index 2df0595..3eabdfb 100644
--- a/mtop/src/tracing.rs
+++ b/mtop/src/tracing.rs
@@ -1,5 +1,4 @@
-use std::fs;
-use std::fs::File;
+use std::fs::{self, File};
 use std::io::{self, Stderr};
 use std::path::PathBuf;
 use tracing::level_filters::LevelFilter;