diff --git a/src/dragonball/src/device_manager/mod.rs b/src/dragonball/src/device_manager/mod.rs
index 75eaef6ac3..09689ca52c 100644
--- a/src/dragonball/src/device_manager/mod.rs
+++ b/src/dragonball/src/device_manager/mod.rs
@@ -795,13 +795,14 @@ impl DeviceManager {
     fn allocate_mmio_device_resource(
         &self,
     ) -> std::result::Result<DeviceResources, StartMicroVmError> {
-        let mut requests = Vec::new();
-        requests.push(ResourceConstraint::MmioAddress {
-            range: None,
-            align: MMIO_DEFAULT_CFG_SIZE,
-            size: MMIO_DEFAULT_CFG_SIZE,
-        });
-        requests.push(ResourceConstraint::LegacyIrq { irq: None });
+        let requests = vec![
+            ResourceConstraint::MmioAddress {
+                range: None,
+                align: MMIO_DEFAULT_CFG_SIZE,
+                size: MMIO_DEFAULT_CFG_SIZE,
+            },
+            ResourceConstraint::LegacyIrq { irq: None },
+        ];
 
         self.res_manager
             .allocate_device_resources(&requests, false)
diff --git a/src/dragonball/src/vcpu/aarch64.rs b/src/dragonball/src/vcpu/aarch64.rs
index 054a1f65d4..dc4b9c61a6 100644
--- a/src/dragonball/src/vcpu/aarch64.rs
+++ b/src/dragonball/src/vcpu/aarch64.rs
@@ -39,6 +39,7 @@ impl Vcpu {
     ///   vcpu thread to vmm thread.
     /// * `create_ts` - A timestamp used by the vcpu to calculate its lifetime.
     /// * `support_immediate_exit` -  whether kvm uses supports immediate_exit flag.
+    #[allow(clippy::too_many_arguments)]
     pub fn new_aarch64(
         id: u8,
         vcpu_fd: Arc<VcpuFd>,
diff --git a/src/dragonball/src/vcpu/vcpu_impl.rs b/src/dragonball/src/vcpu/vcpu_impl.rs
index 85f2888ced..ff3f9e44fe 100644
--- a/src/dragonball/src/vcpu/vcpu_impl.rs
+++ b/src/dragonball/src/vcpu/vcpu_impl.rs
@@ -851,7 +851,7 @@ pub mod tests {
 
         let kvm = Kvm::new().unwrap();
         let vm = Arc::new(kvm.create_vm().unwrap());
-        let kvm_context = KvmContext::new(Some(kvm.as_raw_fd())).unwrap();
+        let _kvm_context = KvmContext::new(Some(kvm.as_raw_fd())).unwrap();
         let vcpu_fd = Arc::new(vm.create_vcpu(0).unwrap());
         let io_manager = IoManagerCached::new(Arc::new(ArcSwap::new(Arc::new(IoManager::new()))));
         let reset_event_fd = EventFd::new(libc::EFD_NONBLOCK).unwrap();
diff --git a/src/dragonball/src/vcpu/vcpu_manager.rs b/src/dragonball/src/vcpu/vcpu_manager.rs
index f6f3e93ffa..51a790c4db 100644
--- a/src/dragonball/src/vcpu/vcpu_manager.rs
+++ b/src/dragonball/src/vcpu/vcpu_manager.rs
@@ -774,7 +774,7 @@ impl VcpuManager {
             self.reset_event_fd.as_ref().unwrap().try_clone().unwrap(),
             self.vcpu_state_event.try_clone().unwrap(),
             self.vcpu_state_sender.clone(),
-            request_ts.clone(),
+            request_ts,
             self.support_immediate_exit,
         )
         .map_err(VcpuManagerError::Vcpu)
diff --git a/src/dragonball/src/vm/aarch64.rs b/src/dragonball/src/vm/aarch64.rs
index 8206920ce7..fddbf9516a 100644
--- a/src/dragonball/src/vm/aarch64.rs
+++ b/src/dragonball/src/vm/aarch64.rs
@@ -35,6 +35,7 @@ use crate::event_manager::EventManager;
 /// * `device_info` - A hashmap containing the attached devices for building FDT device nodes.
 /// * `gic_device` - The GIC device.
 /// * `initrd` - Information about an optional initrd.
+#[allow(clippy::borrowed_box)]
 fn configure_system<T: DeviceInfoForFDT + Clone + Debug, M: GuestMemory>(
     guest_mem: &M,
     cmdline: &str,
@@ -58,8 +59,9 @@ fn configure_system<T: DeviceInfoForFDT + Clone + Debug, M: GuestMemory>(
 #[cfg(target_arch = "aarch64")]
 impl Vm {
     /// Gets a reference to the irqchip of the VM
+    #[allow(clippy::borrowed_box)]
     pub fn get_irqchip(&self) -> &Box<dyn GICDevice> {
-        &self.irqchip_handle.as_ref().unwrap()
+        self.irqchip_handle.as_ref().unwrap()
     }
 
     /// Creates the irq chip in-kernel device model.