misc: Further improve imports styling

By introducing `imports_granularity="Module"` format strategy,
effectively groups imports from the same module into one line or block,
improving maintainability and readability.

Signed-off-by: Ruoqing He <heruoqing@iscas.ac.cn>

virtio-devices/src/net.rs

@@ -10,18 +10,16 @@ use std::net::Ipv4Addr;
 use std::num::Wrapping;
 use std::ops::Deref;
 use std::os::unix::io::{AsRawFd, RawFd};
-use std::result;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Barrier};
-use std::thread;
+use std::{result, thread};
 
 use anyhow::anyhow;
 #[cfg(not(fuzzing))]
 use net_util::virtio_features_to_tap_offload;
-use net_util::CtrlQueue;
 use net_util::{
-    build_net_config_space, build_net_config_space_with_mq, open_tap, MacAddr, NetCounters,
-    NetQueuePair, OpenTapError, RxVirtio, Tap, TapError, TxVirtio, VirtioNetConfig,
+    build_net_config_space, build_net_config_space_with_mq, open_tap, CtrlQueue, MacAddr,
+    NetCounters, NetQueuePair, OpenTapError, RxVirtio, Tap, TapError, TxVirtio, VirtioNetConfig,
 };
 use seccompiler::SeccompAction;
 use serde::{Deserialize, Serialize};
@@ -35,16 +33,14 @@ use vm_migration::{Migratable, MigratableError, Pausable, Snapshot, Snapshottabl
 use vm_virtio::AccessPlatform;
 use vmm_sys_util::eventfd::EventFd;
 
-use super::Error as DeviceError;
 use super::{
     ActivateError, ActivateResult, EpollHelper, EpollHelperError, EpollHelperHandler,
-    RateLimiterConfig, VirtioCommon, VirtioDevice, VirtioDeviceType, VirtioInterruptType,
-    EPOLL_HELPER_EVENT_LAST,
+    Error as DeviceError, RateLimiterConfig, VirtioCommon, VirtioDevice, VirtioDeviceType,
+    VirtioInterruptType, EPOLL_HELPER_EVENT_LAST,
 };
 use crate::seccomp_filters::Thread;
 use crate::thread_helper::spawn_virtio_thread;
-use crate::GuestMemoryMmap;
-use crate::VirtioInterrupt;
+use crate::{GuestMemoryMmap, VirtioInterrupt};
 
 /// Control queue
 // Event available on the control queue.