diff --git a/src/dragonball/src/address_space_manager.rs b/src/dragonball/src/address_space_manager.rs
index 6efdb027ad..3c4de6c668 100644
--- a/src/dragonball/src/address_space_manager.rs
+++ b/src/dragonball/src/address_space_manager.rs
@@ -644,10 +644,7 @@ impl AddressSpaceMgr {
         guest_numa_node_id: u32,
         vcpu_ids: &[u32],
     ) {
-        let node = self
-            .numa_nodes
-            .entry(guest_numa_node_id)
-            .or_insert_with(NumaNode::new);
+        let node = self.numa_nodes.entry(guest_numa_node_id).or_default();
         node.add_info(&NumaNodeInfo {
             base: region.start_addr(),
             size: region.len(),
diff --git a/src/dragonball/src/device_manager/mod.rs b/src/dragonball/src/device_manager/mod.rs
index e8e660985a..169e8cb147 100644
--- a/src/dragonball/src/device_manager/mod.rs
+++ b/src/dragonball/src/device_manager/mod.rs
@@ -424,7 +424,7 @@ impl DeviceOpContext {
     fn generate_virtio_device_info(&self) -> Result<HashMap<(DeviceType, String), MMIODeviceInfo>> {
         let mut dev_info = HashMap::new();
         #[cfg(feature = "dbs-virtio-devices")]
-        for (_index, device) in self.virtio_devices.iter().enumerate() {
+        for device in self.virtio_devices.iter() {
             let (mmio_base, mmio_size, irq) = DeviceManager::get_virtio_mmio_device_info(device)?;
             let dev_type;
             let device_id;
diff --git a/versions.yaml b/versions.yaml
index a9336893f7..75786265c3 100644
--- a/versions.yaml
+++ b/versions.yaml
@@ -369,12 +369,12 @@ languages:
   rust:
     description: "Rust language"
     notes: "'version' is the default minimum version used by this project."
-    version: "1.72.0"
+    version: "1.75.0"
     meta:
       description: |
         'newest-version' is the latest version known to work when
         building Kata
-      newest-version: "1.72.0"
+      newest-version: "1.75.0"
 
   golangci-lint:
     description: "golangci-lint"