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misc: Adapt consistent import style formatting
Historically the Cloud Hypervisor coding style has been to ensure that all imports are ordered and placed in a single group. Unfortunately cargo fmt has no support for ensuring that all imports are in a single group so if whitespace lines were added as part of the import statements then they would only be odered correctly in the group. By adopting "group_imports="StdExternalCrate" we can enforce a style where imports are placed in at most three groups for std, external crates and the crate itself. Choosing a style enforceable by the tooling reduces the reviewer burden. Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
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@@ -3,13 +3,6 @@
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// SPDX-License-Identifier: Apache-2.0
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//
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use crate::console_devices::ConsoleOutput;
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#[cfg(target_arch = "aarch64")]
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use devices::legacy::Pl011;
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#[cfg(target_arch = "x86_64")]
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use devices::legacy::Serial;
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use libc::EFD_NONBLOCK;
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use serial_buffer::SerialBuffer;
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use std::fs::File;
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use std::io::Read;
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use std::net::Shutdown;
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@@ -20,9 +13,18 @@ use std::path::PathBuf;
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use std::sync::atomic::{AtomicBool, Ordering};
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use std::sync::{Arc, Mutex};
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use std::{io, result, thread};
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#[cfg(target_arch = "aarch64")]
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use devices::legacy::Pl011;
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#[cfg(target_arch = "x86_64")]
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use devices::legacy::Serial;
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use libc::EFD_NONBLOCK;
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use serial_buffer::SerialBuffer;
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use thiserror::Error;
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use vmm_sys_util::eventfd::EventFd;
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use crate::console_devices::ConsoleOutput;
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#[derive(Debug, Error)]
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pub enum Error {
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/// Cannot clone File.
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