diff --git a/mullvad-api/src/rest.rs b/mullvad-api/src/rest.rs
index 559ddd4b4e53..6332c1266e99 100644
--- a/mullvad-api/src/rest.rs
+++ b/mullvad-api/src/rest.rs
@@ -685,7 +685,7 @@ impl MullvadRestHandle {
                 }
                 match api_proxy.clone().get_api_addrs().await {
                     Ok(new_addrs) => {
-                        if let Some(addr) = new_addrs.get(0) {
+                        if let Some(addr) = new_addrs.first() {
                             log::debug!(
                                 "Fetched new API address {:?}. Fetching again in {} hours",
                                 addr,
diff --git a/mullvad-daemon/src/access_method.rs b/mullvad-daemon/src/access_method.rs
index 7d9d3dba95d0..028e54f462bb 100644
--- a/mullvad-daemon/src/access_method.rs
+++ b/mullvad-daemon/src/access_method.rs
@@ -22,13 +22,13 @@ pub enum Error {
     NoSuchMethod(access_method::Id),
     /// Access method could not be rotate
     #[error(display = "Access method could not be rotated")]
-    RotationError,
+    RotationFailed,
     /// Some error occured in the daemon's state of handling
     /// [`AccessMethodSetting`]s & [`ApiConnectionMode`]s.
     #[error(display = "Error occured when handling connection settings & details")]
     ConnectionMode(#[error(source)] api::Error),
     #[error(display = "API endpoint rotation failed")]
-    RestError(#[error(source)] rest::Error),
+    Rest(#[error(source)] rest::Error),
     /// Access methods settings error
     #[error(display = "Settings error")]
     Settings(#[error(source)] settings::Error),
@@ -190,7 +190,7 @@ where
             .await
             .map_err(|error| {
                 log::error!("Failed to rotate API endpoint: {}", error);
-                Error::RotationError
+                Error::RotationFailed
             })
     }
 
@@ -261,7 +261,7 @@ pub async fn test_access_method(
         .await
         .map_err(|err| {
             log::error!("Failed to rotate API endpoint: {err}");
-            Error::RestError(err)
+            Error::Rest(err)
         })?;
 
     // Set up the reset
@@ -289,7 +289,7 @@ pub async fn test_access_method(
     let result = mullvad_api::ApiProxy::new(rest_handle)
         .api_addrs_available()
         .await
-        .map_err(Error::RestError)?;
+        .map_err(Error::Rest)?;
 
     // We need to perform a rotation of API endpoint after a set action
     // Note that this will be done automatically if the API call fails,
@@ -301,7 +301,7 @@ pub async fn test_access_method(
             .await
             .map_err(|err| {
                 log::error!("Failed to rotate API endpoint: {err}");
-                Error::RestError(err)
+                Error::Rest(err)
             })?;
     }
 
diff --git a/mullvad-daemon/src/migrations/account_history.rs b/mullvad-daemon/src/migrations/account_history.rs
index d007c1414f3a..fb1691fb75c4 100644
--- a/mullvad-daemon/src/migrations/account_history.rs
+++ b/mullvad-daemon/src/migrations/account_history.rs
@@ -79,7 +79,7 @@ fn migrate_formats_inner(
     } else if let Ok(token) = try_format_v1(account_bytes) {
         Ok(token)
     } else {
-        Err(Error::ParseHistoryError)
+        Err(Error::ParseHistory)
     }
 }
 
@@ -110,7 +110,7 @@ fn try_format_v2(bytes: &[u8]) -> Result<Option<(AccountToken, serde_json::Value
         pub wireguard: serde_json::Value,
     }
     Ok(serde_json::from_slice::<'_, Vec<AccountEntry>>(bytes)
-        .map_err(|_error| Error::ParseHistoryError)?
+        .map_err(|_error| Error::ParseHistory)?
         .into_iter()
         .next()
         .map(|entry| (entry.account, entry.wireguard)))
@@ -122,7 +122,7 @@ fn try_format_v1(bytes: &[u8]) -> Result<Option<AccountToken>> {
         accounts: Vec<AccountToken>,
     }
     Ok(serde_json::from_slice::<'_, OldFormat>(bytes)
-        .map_err(|_error| Error::ParseHistoryError)?
+        .map_err(|_error| Error::ParseHistory)?
         .accounts
         .into_iter()
         .next())
diff --git a/mullvad-daemon/src/migrations/mod.rs b/mullvad-daemon/src/migrations/mod.rs
index 8624677f069b..e6977d9e2209 100644
--- a/mullvad-daemon/src/migrations/mod.rs
+++ b/mullvad-daemon/src/migrations/mod.rs
@@ -85,11 +85,11 @@ pub enum Error {
     WriteHistory(#[error(source)] io::Error),
 
     #[error(display = "Failed to parse account history")]
-    ParseHistoryError,
+    ParseHistory,
 
     #[cfg(windows)]
     #[error(display = "Failed to restore Windows update backup")]
-    WinMigrationError(#[error(source)] windows::Error),
+    WinMigration(#[error(source)] windows::Error),
 }
 
 pub type Result<T> = std::result::Result<T, Error>;
@@ -119,7 +119,7 @@ pub async fn migrate_all(cache_dir: &Path, settings_dir: &Path) -> Result<Option
     #[cfg(windows)]
     windows::migrate_after_windows_update(settings_dir)
         .await
-        .map_err(Error::WinMigrationError)?;
+        .map_err(Error::WinMigration)?;
 
     let path = settings_dir.join(SETTINGS_FILE);
 
diff --git a/mullvad-exclude/src/main.rs b/mullvad-exclude/src/main.rs
index 698f9454e532..9135a6d29218 100644
--- a/mullvad-exclude/src/main.rs
+++ b/mullvad-exclude/src/main.rs
@@ -39,7 +39,7 @@ enum Error {
     Exec(#[error(source)] nix::Error),
 
     #[error(display = "An argument contains interior nul bytes")]
-    ArgumentNulError(#[error(source)] NulError),
+    ArgumentNul(#[error(source)] NulError),
 
     #[error(display = "Failed to find net_cls controller")]
     FindNetClsController(#[error(source)] io::Error),
@@ -76,13 +76,13 @@ fn main() {
 fn run() -> Result<Infallible, Error> {
     let mut args_iter = env::args_os().skip(1);
     let program = args_iter.next().ok_or(Error::InvalidArguments)?;
-    let program = CString::new(program.as_bytes()).map_err(Error::ArgumentNulError)?;
+    let program = CString::new(program.as_bytes()).map_err(Error::ArgumentNul)?;
 
     let args: Vec<CString> = env::args_os()
         .skip(1)
         .map(|arg| CString::new(arg.as_bytes()))
         .collect::<Result<Vec<CString>, NulError>>()
-        .map_err(Error::ArgumentNulError)?;
+        .map_err(Error::ArgumentNul)?;
 
     let cgroup_dir = find_net_cls_mount()
         .map_err(Error::FindNetClsController)?
diff --git a/talpid-openvpn/src/proxy/shadowsocks.rs b/talpid-openvpn/src/proxy/shadowsocks.rs
index 77eba20043c1..47fa0e939a21 100644
--- a/talpid-openvpn/src/proxy/shadowsocks.rs
+++ b/talpid-openvpn/src/proxy/shadowsocks.rs
@@ -93,7 +93,7 @@ impl ShadowsocksProxyMonitor {
 
     fn get_listener_addr(srv: &local::Server) -> io::Result<SocketAddr> {
         let no_addr_err = || io::Error::new(io::ErrorKind::Other, "Missing listener address");
-        let socks_server = srv.socks_servers().get(0).ok_or_else(no_addr_err)?;
+        let socks_server = srv.socks_servers().first().ok_or_else(no_addr_err)?;
         socks_server
             .tcp_server()
             .ok_or_else(no_addr_err)?
diff --git a/talpid-routing/src/windows/get_best_default_route.rs b/talpid-routing/src/windows/get_best_default_route.rs
index f51313034895..21dc6edd7b56 100644
--- a/talpid-routing/src/windows/get_best_default_route.rs
+++ b/talpid-routing/src/windows/get_best_default_route.rs
@@ -85,7 +85,7 @@ pub fn get_best_default_route(family: AddressFamily) -> Result<Option<InterfaceA
     annotated.sort_by(|lhs, rhs| lhs.effective_metric.cmp(&rhs.effective_metric));
 
     annotated
-        .get(0)
+        .first()
         .map(|annotated| {
             Ok(InterfaceAndGateway {
                 iface: annotated.route.InterfaceLuid,
diff --git a/talpid-routing/src/windows/mod.rs b/talpid-routing/src/windows/mod.rs
index 7924d4c7abf4..845366753bfe 100644
--- a/talpid-routing/src/windows/mod.rs
+++ b/talpid-routing/src/windows/mod.rs
@@ -7,7 +7,7 @@ use futures::{
     },
     StreamExt,
 };
-pub use get_best_default_route::{get_best_default_route, route_has_gateway, InterfaceAndGateway};
+pub use get_best_default_route::{get_best_default_route, InterfaceAndGateway};
 use net::AddressFamily;
 pub use route_manager::{Callback, CallbackHandle, Route, RouteManagerInternal};
 use std::{collections::HashSet, io, net::IpAddr};
diff --git a/talpid-routing/src/windows/route_manager.rs b/talpid-routing/src/windows/route_manager.rs
index a122a29003ce..f0fa53126b62 100644
--- a/talpid-routing/src/windows/route_manager.rs
+++ b/talpid-routing/src/windows/route_manager.rs
@@ -589,7 +589,7 @@ fn interface_luid_from_gateway(gateway: &SOCKADDR_INET) -> Result<NET_LUID_LH> {
     // Select the interface with the best (lowest) metric.
     //
     matches
-        .get(0)
+        .first()
         .map(|interface| interface.Luid)
         .ok_or_else(|| {
             log::error!("Unable to find network adapter with specified gateway");
diff --git a/talpid-tunnel-config-client/src/lib.rs b/talpid-tunnel-config-client/src/lib.rs
index f54108a3496d..14babc848f95 100644
--- a/talpid-tunnel-config-client/src/lib.rs
+++ b/talpid-tunnel-config-client/src/lib.rs
@@ -26,7 +26,7 @@ mod sys {
 #[cfg(target_os = "windows")]
 mod sys {
     pub use std::os::windows::io::{AsRawSocket, RawSocket};
-    pub use windows_sys::Win32::Networking::WinSock::{IPPROTO_IP, IPPROTO_TCP, IP_USER_MTU};
+    pub use windows_sys::Win32::Networking::WinSock::{IPPROTO_IP, IP_USER_MTU};
 }
 use sys::*;