Update to the 2021 edition

3 files changed, 2 insertions, 3 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 43bb9dd..f8c2b8b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "kd-forest"
 version = "2.0.0"
 authors = ["Tavian Barnes <tavianator@tavianator.com>"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 acap = "0.3.0"
diff --git a/src/forest.rs b/src/forest.rs
index d4f5083..28ccb24 100644
--- a/src/forest.rs
+++ b/src/forest.rs
@@ -5,7 +5,7 @@ use acap::kd::FlatKdTree;
 use acap::knn::{NearestNeighbors, Neighborhood};
 use acap::vp::FlatVpTree;
 
-use std::iter::{self, Extend, FromIterator};
+use std::iter;
 
 /// The number of bits dedicated to the flat buffer.
 const BUFFER_BITS: usize = 6;
diff --git a/src/soft.rs b/src/soft.rs
index 694d0e7..4ce4204 100644
--- a/src/soft.rs
+++ b/src/soft.rs
@@ -8,7 +8,6 @@ use acap::knn::{NearestNeighbors, Neighborhood};
 use acap::vp::FlatVpTree;
 
 use std::iter;
-use std::iter::FromIterator;
 use std::mem;
 
 /// A trait for objects that can be soft-deleted.