From 872ac5af7b96b6b2ccc2231f38f06661ac7f00c9 Mon Sep 17 00:00:00 2001
From: NikVolf <nikvolf@gmail.com>
Date: Tue, 3 Sep 2019 18:31:51 +0300
Subject: [PATCH] avoid drain of vec

---
 src/tree.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/tree.rs b/src/tree.rs
index efb59e3..bc85416 100644
--- a/src/tree.rs
+++ b/src/tree.rs
@@ -227,9 +227,9 @@ impl Tree {
             }
         }
 
-        let mut new_root = peaks.drain(0..1).nth(0).expect("At lest 2 elements in peaks");
+        let mut new_root = *peaks.iter().nth(0).expect("At lest 2 elements in peaks");
 
-        for next_peak in peaks.into_iter() {
+        for next_peak in peaks.into_iter().skip(1) {
             new_root = self.push_generated(
                 combine_nodes(
                 self.resolve_link(new_root)?,