From ca40809f852f384953f638d877cc0f61c03ea962 Mon Sep 17 00:00:00 2001
From: Luiz Irber <luiz.irber@gmail.com>
Date: Wed, 24 Jun 2020 12:20:26 -0700
Subject: [PATCH] fix lints and msrv (older backtrace crate)

---
 src/core/Cargo.toml            | 1 +
 src/core/src/sketch/minhash.rs | 8 +++-----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/core/Cargo.toml b/src/core/Cargo.toml
index 7b93309992..b6123105c7 100644
--- a/src/core/Cargo.toml
+++ b/src/core/Cargo.toml
@@ -25,6 +25,7 @@ parallel = ["rayon"]
 #cbindgen = "~0.14.2"
 
 [dependencies]
+backtrace = "=0.3.46" # later versions require rust 1.40
 byteorder = "1.3.4"
 cfg-if = "0.1.10"
 failure = "0.1.8"
diff --git a/src/core/src/sketch/minhash.rs b/src/core/src/sketch/minhash.rs
index ccfd0b4499..8af0ffb453 100644
--- a/src/core/src/sketch/minhash.rs
+++ b/src/core/src/sketch/minhash.rs
@@ -1476,10 +1476,8 @@ impl KmerMinHashBTree {
         {
             // "good" hash - within range, smaller than current entry, or
             // still have space available
-            if self.mins.insert(hash) {
-                if hash > self.current_max {
-                    self.current_max = hash;
-                }
+            if self.mins.insert(hash) && hash > self.current_max {
+                self.current_max = hash;
             }
             if let Some(ref mut abunds) = self.abunds {
                 *abunds.entry(hash).or_insert(0) += abundance;
@@ -1530,7 +1528,7 @@ impl KmerMinHashBTree {
             self.num as usize
         };
 
-        self.mins = union.into_iter().take(to_take).cloned().collect();
+        self.mins = union.take(to_take).cloned().collect();
 
         if let Some(abunds) = &self.abunds {
             if let Some(oabunds) = &other.abunds {