diff --git a/.github/workflows/bvt.yaml b/.github/workflows/bvt.yaml
index be20c97..f04c5c5 100644
--- a/.github/workflows/bvt.yaml
+++ b/.github/workflows/bvt.yaml
@@ -1,7 +1,7 @@
 name: BVT
 on: [pull_request]
 env:
-  RUST_VERSION: 1.52
+  RUST_VERSION: 1.69.0
 jobs:
   build:
     name: Build
diff --git a/.gitignore b/.gitignore
index 979d87e..088ba6b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,7 +8,3 @@ Cargo.lock
 
 # These are backup files generated by rustfmt
 **/*.rs.bk
-
-/target
-**/*.rs.bk
-Cargo.lock
diff --git a/src/devices.rs b/src/devices.rs
index fffa879..d5325c1 100644
--- a/src/devices.rs
+++ b/src/devices.rs
@@ -46,6 +46,7 @@ pub enum DeviceType {
     Block,
 }
 
+#[allow(clippy::derivable_impls)]
 impl Default for DeviceType {
     fn default() -> Self {
         DeviceType::All
diff --git a/src/lib.rs b/src/lib.rs
index 3d50982..5754a47 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -879,6 +879,7 @@ pub enum MaxValue {
     Value(i64),
 }
 
+#[allow(clippy::derivable_impls)]
 impl Default for MaxValue {
     fn default() -> Self {
         MaxValue::Max
diff --git a/tests/cgroup.rs b/tests/cgroup.rs
index 3c9bd7d..c63be25 100644
--- a/tests/cgroup.rs
+++ b/tests/cgroup.rs
@@ -199,7 +199,7 @@ fn test_kill_cgroup() {
                 }
             }
         };
-        assert!(!status.is_none());
+        assert!(status.is_some());
     }
     cg.delete().unwrap();
 }