diff --git a/benches/concurrency.rs b/benches/concurrency.rs
index 2019550..74d2da4 100644
--- a/benches/concurrency.rs
+++ b/benches/concurrency.rs
@@ -1,5 +1,5 @@
-use std::sync::Arc;
 use divan::Bencher;
+use std::sync::Arc;
 
 use hidefix::prelude::*;
 
diff --git a/benches/read.rs b/benches/read.rs
index dd0bed9..f4f6688 100644
--- a/benches/read.rs
+++ b/benches/read.rs
@@ -1,5 +1,5 @@
-use hidefix::prelude::*;
 use divan::Bencher;
+use hidefix::prelude::*;
 
 #[divan::bench]
 fn read_2d_chunked(b: Bencher) {
diff --git a/benches/stream.rs b/benches/stream.rs
index d4659b5..8c12bc3 100644
--- a/benches/stream.rs
+++ b/benches/stream.rs
@@ -1,7 +1,7 @@
+use divan::Bencher;
 use futures::executor::block_on_stream;
 use futures::{pin_mut, Stream, StreamExt};
 use hidefix::prelude::*;
-use divan::Bencher;
 
 fn consume_stream<S: Stream>(rt: &mut tokio::runtime::Runtime, s: S) {
     rt.block_on(async move {
diff --git a/src/idx/dataset/mod.rs b/src/idx/dataset/mod.rs
index 60228bf..34c54a5 100644
--- a/src/idx/dataset/mod.rs
+++ b/src/idx/dataset/mod.rs
@@ -12,9 +12,9 @@ mod tests {
     use super::super::chunk::{Chunk, ULE};
     use super::*;
     use crate::filters::byteorder::Order as ByteOrder;
+    use divan::Bencher;
     use itertools::izip;
     use serde::{Deserialize, Serialize};
-    use divan::Bencher;
 
     pub(crate) fn test_dataset() -> Dataset<'static, 2> {
         Dataset::new(
diff --git a/src/idx/serde.rs b/src/idx/serde.rs
index 17004a7..02d291f 100644
--- a/src/idx/serde.rs
+++ b/src/idx/serde.rs
@@ -92,7 +92,7 @@ pub mod chunks_u64s {
         let chunks: &'a [Chunk<DE>] = Chunk::<DE>::slice_from_u64s(slice);
         let chunks = Cow::<'a, [Chunk<DE>]>::from(chunks);
 
-        #[cfg(feature="unstable")]
+        #[cfg(feature = "unstable")]
         debug_assert!(chunks.is_borrowed());
 
         Ok(chunks)