diff --git a/src/entity/src/character.rs b/src/entity/src/character.rs
index 14d13e6..e58cef5 100644
--- a/src/entity/src/character.rs
+++ b/src/entity/src/character.rs
@@ -1,4 +1,3 @@
-use std::convert::{From, Into};
 use std::collections::HashMap;
 use serde::{Serialize, Deserialize};
 
diff --git a/src/items/src/state.rs b/src/items/src/state.rs
index aa27143..ac17f0f 100644
--- a/src/items/src/state.rs
+++ b/src/items/src/state.rs
@@ -240,7 +240,7 @@ impl ItemState {
                             item_id: ClientItemId(0),
                             item: InventoryItemDetail::Stacked(StackedItemDetail {
                                 entity_ids: items.iter().map(|i| i.id).collect(),
-                                tool: items.get(0)
+                                tool: items.first()
                                     .ok_or_else(|| ItemStateError::StackedItemError(items.clone()))?
                                     .item
                                     .clone()
@@ -284,7 +284,7 @@ impl ItemState {
                     BankItemEntity::Stacked(items) => {
                         BankItemDetail::Stacked(StackedItemDetail {
                             entity_ids: items.iter().map(|i| i.id).collect(),
-                            tool: items.get(0)
+                            tool: items.first()
                                 .ok_or_else(|| ItemStateError::StackedItemError(items.clone()))?
                                 .item
                                 .clone()
diff --git a/src/location/src/lib.rs b/src/location/src/lib.rs
index 3dd0b2b..3a5c071 100644
--- a/src/location/src/lib.rs
+++ b/src/location/src/lib.rs
@@ -317,7 +317,7 @@ impl ClientLocation {
             .flatten()
             .collect::<Vec<_>>();
         r.sort_by_key(|k| k.time_join);
-        let c = r.get(0)
+        let c = r.first()
             .ok_or(GetLeaderError::NoClientInArea)?;
         Ok(**c)
     }
@@ -332,7 +332,7 @@ impl ClientLocation {
             .flatten()
             .collect::<Vec<_>>();
         l.sort_by_key(|k| k.time_join);
-        let c = l.get(0).ok_or(GetLeaderError::NoClientInArea)?;
+        let c = l.first().ok_or(GetLeaderError::NoClientInArea)?;
         Ok(**c)
     }
 
diff --git a/src/login_server/src/character.rs b/src/login_server/src/character.rs
index a5cbc3b..30cf4af 100644
--- a/src/login_server/src/character.rs
+++ b/src/login_server/src/character.rs
@@ -754,8 +754,8 @@ fn new_character_from_preview(user: &UserAccountEntity, preview: &CharacterPrevi
     let mut character = NewCharacterEntity::new(user.id);
     character.slot = preview.slot;
     character.name = String::from_utf16_lossy(&preview.character.name).trim_matches(char::from(0)).into();
-    character.section_id = preview.character.section_id.into();
-    character.char_class = preview.character.ch_class.into();
+    character.section_id = preview.character.section_id;
+    character.char_class = preview.character.ch_class;
     character.appearance.costume = preview.character.costume;
     character.appearance.skin = preview.character.skin;
     character.appearance.face = preview.character.face;
@@ -810,8 +810,8 @@ impl<'a> SelectScreenCharacterBuilder<'a> {
             //model: character.model,
             //_unused: [0; 15],
             //name_color_checksum: character.name_color_checksum,
-            section_id: character.section_id.into(),
-            ch_class: character.char_class.into(),
+            section_id: character.section_id,
+            ch_class: character.char_class,
             //v2flags: character.v2flags,
             //version: character.version,
             //v1flags: character.v1flags,
diff --git a/src/pktbuilder/src/character.rs b/src/pktbuilder/src/character.rs
index 1052af6..92fc999 100644
--- a/src/pktbuilder/src/character.rs
+++ b/src/pktbuilder/src/character.rs
@@ -62,8 +62,8 @@ impl<'a> CharacterBytesBuilder<'a> {
             ata: stats.ata,
             lck: stats.lck + character.materials.luck as u16 * 2,
             level,
-            section_id: character.section_id.into(),
-            ch_class: character.char_class.into(),
+            section_id: character.section_id,
+            ch_class: character.char_class,
             costume: character.appearance.costume,
             skin: character.appearance.skin,
             face: character.appearance.face,
diff --git a/src/shops/src/tool.rs b/src/shops/src/tool.rs
index b068d19..b51ab8d 100644
--- a/src/shops/src/tool.rs
+++ b/src/shops/src/tool.rs
@@ -231,9 +231,6 @@ impl<R: Rng + SeedableRng> ToolShop<R> {
         else {
             let mut techs = Vec::new();
             let tier = tier.techs.iter()
-                .map(|(tech, entry)| {
-                    (tech, entry)
-                })
                 .collect::<Vec<_>>();
 
             let tech_choice = WeightedIndex::new(tier.iter().map(|(_, e)| e.probability)).unwrap();