diff --git a/impls/src/backends/lmdb.rs b/impls/src/backends/lmdb.rs
index 18ac3a7..f9bcb0f 100644
--- a/impls/src/backends/lmdb.rs
+++ b/impls/src/backends/lmdb.rs
@@ -334,7 +334,11 @@ where
 			)
 			.map_err(From::from)
 		});
-		let iter = prefix_iter.expect("deserialize").into_iter().filter(|x| x.is_ok()).map(|x| x.unwrap());
+		let iter = prefix_iter
+			.expect("deserialize")
+			.into_iter()
+			.filter(|x| x.is_ok())
+			.map(|x| x.unwrap());
 		Box::new(iter)
 	}
 
@@ -355,7 +359,11 @@ where
 			)
 			.map_err(From::from)
 		});
-		let iter = prefix_iter.expect("deserialize").into_iter().filter(|x| x.is_ok()).map(|x| x.unwrap());
+		let iter = prefix_iter
+			.expect("deserialize")
+			.into_iter()
+			.filter(|x| x.is_ok())
+			.map(|x| x.unwrap());
 		Box::new(iter)
 	}
 
@@ -395,7 +403,11 @@ where
 				)
 				.map_err(From::from)
 			});
-		let iter = prefix_iter.expect("deserialize").into_iter().filter(|x| x.is_ok()).map(|x| x.unwrap());
+		let iter = prefix_iter
+			.expect("deserialize")
+			.into_iter()
+			.filter(|x| x.is_ok())
+			.map(|x| x.unwrap());
 		Box::new(iter)
 	}
 
@@ -590,7 +602,11 @@ where
 			)
 			.map_err(From::from)
 		});
-		let iter = prefix_iter.expect("deserialize").into_iter().filter(|x| x.is_ok()).map(|x| x.unwrap());
+		let iter = prefix_iter
+			.expect("deserialize")
+			.into_iter()
+			.filter(|x| x.is_ok())
+			.map(|x| x.unwrap());
 		Box::new(iter)
 	}
 
@@ -637,7 +653,11 @@ where
 			)
 			.map_err(From::from)
 		});
-		let iter = prefix_iter.expect("deserialize").into_iter().filter(|x| x.is_ok()).map(|x| x.unwrap());
+		let iter = prefix_iter
+			.expect("deserialize")
+			.into_iter()
+			.filter(|x| x.is_ok())
+			.map(|x| x.unwrap());
 		Box::new(iter)
 	}
 
@@ -727,7 +747,11 @@ where
 			)
 			.map_err(From::from)
 		});
-		let iter = prefix_iter.expect("deserialize").into_iter().filter(|x| x.is_ok()).map(|x| x.unwrap());
+		let iter = prefix_iter
+			.expect("deserialize")
+			.into_iter()
+			.filter(|x| x.is_ok())
+			.map(|x| x.unwrap());
 		Box::new(iter)
 	}