diff -r 7732013ce64c -r c5a6e8566425 rust/hedgewars-server/src/server/indexslab.rs
--- a/rust/hedgewars-server/src/server/indexslab.rs	Tue May 28 17:49:04 2019 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,71 +0,0 @@
-use std::{
-    iter,
-    mem::replace,
-    ops::{Index, IndexMut},
-};
-
-pub struct IndexSlab<T> {
-    data: Vec<Option<T>>,
-}
-
-impl<T> IndexSlab<T> {
-    pub fn new() -> Self {
-        Self { data: Vec::new() }
-    }
-
-    pub fn with_capacity(capacity: usize) -> Self {
-        Self {
-            data: Vec::with_capacity(capacity),
-        }
-    }
-
-    pub fn insert(&mut self, index: usize, value: T) {
-        if index >= self.data.len() {
-            self.data.reserve(index - self.data.len() + 1);
-            self.data.extend((self.data.len()..index).map(|_| None));
-            self.data.push(Some(value))
-        } else {
-            self.data[index] = Some(value);
-        }
-    }
-
-    pub fn contains(&self, index: usize) -> bool {
-        self.data.get(index).and_then(|x| x.as_ref()).is_some()
-    }
-
-    pub fn remove(&mut self, index: usize) -> Option<T> {
-        if let Some(x) = self.data.get_mut(index) {
-            replace(x, None)
-        } else {
-            None
-        }
-    }
-
-    pub fn iter(&self) -> impl Iterator<Item = (usize, &T)> {
-        self.data
-            .iter()
-            .enumerate()
-            .filter_map(|(index, opt)| opt.as_ref().and_then(|x| Some((index, x))))
-    }
-
-    pub fn iter_mut(&mut self) -> impl Iterator<Item = (usize, &mut T)> {
-        self.data
-            .iter_mut()
-            .enumerate()
-            .filter_map(|(index, opt)| opt.as_mut().and_then(|x| Some((index, x))))
-    }
-}
-
-impl<T> Index<usize> for IndexSlab<T> {
-    type Output = T;
-
-    fn index(&self, index: usize) -> &Self::Output {
-        self.data[index].as_ref().unwrap()
-    }
-}
-
-impl<T> IndexMut<usize> for IndexSlab<T> {
-    fn index_mut(&mut self, index: usize) -> &mut Self::Output {
-        self.data[index].as_mut().unwrap()
-    }
-}