refactor: enable clippy::std_instead_of_core lint

Cargo.toml

@@ -129,8 +129,7 @@ get_unwrap = "warn"
 similar_names = "warn" # Reduce risk of confusing similar names together, and protects against typos when variable shadowing was intended.
 str_to_string = "warn"
 string_to_string = "warn"
-# TODO: std_instead_of_alloc = "warn"
+std_instead_of_core = "warn"
-# TODO: std_instead_of_core = "warn"
 separated_literal_suffix = "warn"
 unused_self = "warn"
 useless_let_if_seq = "warn"

crates/ironrdp-acceptor/src/channel_connection.rs

@@ -70,7 +70,7 @@ impl Sequence for ChannelConnectionSequence {
     }
 
     fn step(&mut self, input: &[u8], output: &mut WriteBuf) -> ConnectorResult<Written> {
-        let (written, next_state) = match std::mem::take(&mut self.state) {
+        let (written, next_state) = match core::mem::take(&mut self.state) {
             ChannelConnectionState::WaitErectDomainRequest => {
                 let erect_domain_request = ironrdp_core::decode::<X224<mcs::ErectDomainPdu>>(input)
                     .map_err(ConnectorError::decode)

crates/ironrdp-acceptor/src/connection.rs

@@ -1,5 +1,5 @@
-use std::any::TypeId;
+use core::any::TypeId;
-use std::mem;
+use core::mem;
 
 use ironrdp_connector::{
     encode_x224_packet, reason_err, ConnectorError, ConnectorErrorExt, ConnectorResult, DesktopSize, Sequence, State,

crates/ironrdp-acceptor/src/finalization.rs

@@ -78,7 +78,7 @@ impl Sequence for FinalizationSequence {
     }
 
     fn step(&mut self, input: &[u8], output: &mut WriteBuf) -> ConnectorResult<Written> {
-        let (written, next_state) = match std::mem::take(&mut self.state) {
+        let (written, next_state) = match core::mem::take(&mut self.state) {
             FinalizationState::WaitSynchronize => {
                 let synchronize = decode_share_control(input);
 

crates/ironrdp-async/src/framed.rs

@@ -9,7 +9,7 @@ use ironrdp_pdu::PduHint;
 // https://github.com/rust-lang/rust/issues/91611
 
 pub trait FramedRead {
-    type ReadFut<'read>: std::future::Future<Output = io::Result<usize>> + 'read
+    type ReadFut<'read>: core::future::Future<Output = io::Result<usize>> + 'read
     where
         Self: 'read;
 
@@ -24,7 +24,7 @@ pub trait FramedRead {
 }
 
 pub trait FramedWrite {
-    type WriteAllFut<'write>: std::future::Future<Output = io::Result<()>> + 'write
+    type WriteAllFut<'write>: core::future::Future<Output = io::Result<()>> + 'write
     where
         Self: 'write;
 

crates/ironrdp-async/src/lib.rs

@@ -12,8 +12,8 @@ mod connector;
 mod framed;
 mod session;
 
-use std::future::Future;
+use core::future::Future;
-use std::pin::Pin;
+use core::pin::Pin;
 
 use ironrdp_connector::sspi::generator::NetworkRequest;
 use ironrdp_connector::ConnectorResult;

crates/ironrdp-client/src/app.rs

@@ -1,8 +1,9 @@
 #![allow(clippy::print_stderr, clippy::print_stdout)] // allowed in this module only
 
-use std::num::NonZeroU32;
+use core::num::NonZeroU32;
+use core::time::Duration;
 use std::sync::Arc;
-use std::time::{Duration, Instant};
+use std::time::Instant;
 
 use raw_window_handle::{DisplayHandle, HasDisplayHandle};
 use tokio::sync::mpsc;
@@ -37,7 +38,7 @@ impl App {
         // SAFETY: We drop the softbuffer context right before the event loop is stopped, thus making this safe.
         // FIXME: This is not a sufficient proof and the API is actually unsound as-is.
         let display_handle = unsafe {
-            std::mem::transmute::<DisplayHandle<'_>, DisplayHandle<'static>>(event_loop.display_handle().unwrap())
+            core::mem::transmute::<DisplayHandle<'_>, DisplayHandle<'static>>(event_loop.display_handle().unwrap())
         };
         let context = softbuffer::Context::new(display_handle)
             .map_err(|e| anyhow::anyhow!("unable to initialize softbuffer context: {e}"))?;
@@ -165,7 +166,7 @@ impl ApplicationHandler<RdpOutputEvent> for App {
                         event::ElementState::Released => ironrdp::input::Operation::KeyReleased(scancode),
                     };
 
-                    let input_events = self.input_database.apply(std::iter::once(operation));
+                    let input_events = self.input_database.apply(core::iter::once(operation));
 
                     send_fast_path_events(&self.input_event_sender, input_events);
                 }
@@ -202,7 +203,7 @@ impl ApplicationHandler<RdpOutputEvent> for App {
                 let y = (position.y / win_size.height as f64 * self.buffer_size.1 as f64) as u16;
                 let operation = ironrdp::input::Operation::MouseMove(ironrdp::input::MousePosition { x, y });
 
-                let input_events = self.input_database.apply(std::iter::once(operation));
+                let input_events = self.input_database.apply(core::iter::once(operation));
 
                 send_fast_path_events(&self.input_event_sender, input_events);
             }
@@ -275,7 +276,7 @@ impl ApplicationHandler<RdpOutputEvent> for App {
                     event::ElementState::Released => ironrdp::input::Operation::MouseButtonReleased(mouse_button),
                 };
 
-                let input_events = self.input_database.apply(std::iter::once(operation));
+                let input_events = self.input_database.apply(core::iter::once(operation));
 
                 send_fast_path_events(&self.input_event_sender, input_events);
             }

crates/ironrdp-client/src/config.rs

@@ -1,6 +1,6 @@
+use core::num::ParseIntError;
+use core::str::FromStr;
 use std::io;
-use std::num::ParseIntError;
-use std::str::FromStr;
 
 use anyhow::Context as _;
 use clap::clap_derive::ValueEnum;

crates/ironrdp-client/src/network_client.rs

@@ -1,6 +1,6 @@
-use std::future::Future;
+use core::future::Future;
+use core::pin::Pin;
 use std::net::{IpAddr, Ipv4Addr};
-use std::pin::Pin;
 
 use ironrdp::connector::{custom_err, ConnectorResult};
 use ironrdp_tokio::AsyncNetworkClient;

crates/ironrdp-cliprdr-format/src/html.rs

@@ -83,7 +83,7 @@ pub fn cf_html_to_plain_html(input: &[u8]) -> Result<&str, HtmlError> {
         }
     }
 
-    fn header_value_to_u32(value: &str) -> Result<u32, std::num::ParseIntError> {
+    fn header_value_to_u32(value: &str) -> Result<u32, core::num::ParseIntError> {
         value.trim_start_matches('0').parse::<u32>()
     }
 }

crates/ironrdp-cliprdr-native/src/windows.rs

@@ -111,7 +111,7 @@ pub struct WinClipboard {
     /// ```
     ///
     /// Therefore this type should be non-Send and non-Sync to prevent incorrect use.
-    _thread_marker: std::marker::PhantomData<*const ()>,
+    _thread_marker: core::marker::PhantomData<*const ()>,
 }
 
 impl WinClipboard {

crates/ironrdp-cliprdr-native/src/windows/clipboard_data_ref.rs

@@ -56,7 +56,7 @@ impl<'a> ClipboardDataRef<'a> {
     pub(crate) fn data(&self) -> &[u8] {
         let size = self.size();
         // SAFETY: `data` pointer is valid during the lifetime of the wrapper
-        unsafe { std::slice::from_raw_parts(self.data, size) }
+        unsafe { core::slice::from_raw_parts(self.data, size) }
     }
 }
 

crates/ironrdp-cliprdr-native/src/windows/clipboard_impl.rs

@@ -1,6 +1,6 @@
+use core::time::Duration;
 use std::collections::HashSet;
 use std::sync::mpsc;
-use std::time::Duration;
 
 use ironrdp_cliprdr::backend::{ClipboardMessage, ClipboardMessageProxy};
 use ironrdp_cliprdr::pdu::{ClipboardFormat, ClipboardFormatId, FormatDataRequest, FormatDataResponse};
@@ -165,7 +165,7 @@ impl WinClipboardImpl {
             }
         };
 
-        let formats = std::mem::take(&mut self.available_formats_on_remote);
+        let formats = core::mem::take(&mut self.available_formats_on_remote);
 
         // Clearing clipboard is not required, just render all available formats
 

crates/ironrdp-cliprdr-native/src/windows/os_clipboard.rs

@@ -87,7 +87,7 @@ impl OwnedOsClipboard {
     pub(crate) fn delay_render(&mut self, format: ClipboardFormatId) -> Result<(), WinCliprdrError> {
         // SAFETY: We own the clipboard at moment of method invocation, therefore it is safe to
         // call `SetClipboardData`.
-        let result = unsafe { SetClipboardData(format.value(), HANDLE(std::ptr::null_mut())) };
+        let result = unsafe { SetClipboardData(format.value(), HANDLE(core::ptr::null_mut())) };
 
         if let Err(err) = result {
             // `windows` crate will return `Err(..)` on err zero handle, but for `SetClipboardData`

crates/ironrdp-cliprdr-native/src/windows/remote_format_registry.rs

@@ -58,7 +58,7 @@ impl RemoteClipboardFormatRegistry {
         let format_name_utf16 = format_name
             .value()
             .encode_utf16()
-            .chain(std::iter::once(0))
+            .chain(core::iter::once(0))
             .collect::<Vec<_>>();
 
         let format_name_pcwstr = PCWSTR::from_raw(format_name_utf16.as_ptr());

crates/ironrdp-cliprdr-native/src/windows/utils.rs

@@ -26,7 +26,7 @@ impl GlobalMemoryBuffer {
         // - `dst` is valid for writes of `data.len()` bytes, we allocated enough above.
         // - Both `data` and `dst` are properly aligned: u8 alignment is 1
         // - Memory regions are not overlapping, `dst` was allocated by us just above.
-        unsafe { std::ptr::copy_nonoverlapping(data.as_ptr(), dst as *mut u8, data.len()) };
+        unsafe { core::ptr::copy_nonoverlapping(data.as_ptr(), dst as *mut u8, data.len()) };
 
         // SAFETY: We called `GlobalLock` on this handle just above.
         if let Err(error) = unsafe { GlobalUnlock(handle) } {
@@ -67,7 +67,7 @@ pub(crate) unsafe fn render_format(format: ClipboardFormatId, data: &[u8]) -> Wi
 
     // We successfully transferred ownership of the data to the clipboard, we don't need to
     // call drop on handle
-    std::mem::forget(global_data);
+    core::mem::forget(global_data);
 
     Ok(())
 }

crates/ironrdp-cliprdr/src/backend.rs

@@ -41,12 +41,12 @@ pub enum ClipboardMessage {
 
 /// Proxy to send messages from the os clipboard backend to the main application event loop
 /// (e.g. winit event loop).
-pub trait ClipboardMessageProxy: std::fmt::Debug + Send {
+pub trait ClipboardMessageProxy: core::fmt::Debug + Send {
     fn send_clipboard_message(&self, message: ClipboardMessage);
 }
 
 /// OS-specific clipboard backend interface.
-pub trait CliprdrBackend: AsAny + std::fmt::Debug + Send {
+pub trait CliprdrBackend: AsAny + core::fmt::Debug + Send {
     /// Returns path to local temporary directory where clipboard-transferred files should be
     /// stored.
     fn temporary_directory(&self) -> &str;

crates/ironrdp-cliprdr/src/lib.rs

@@ -50,7 +50,7 @@ enum CliprdrState {
     Failed,
 }
 
-pub trait Role: std::fmt::Debug + Send + 'static {
+pub trait Role: core::fmt::Debug + Send + 'static {
     fn is_server() -> bool;
 }
 
@@ -60,7 +60,7 @@ pub struct Cliprdr<R: Role> {
     backend: Box<dyn CliprdrBackend>,
     capabilities: Capabilities,
     state: CliprdrState,
-    _marker: std::marker::PhantomData<R>,
+    _marker: core::marker::PhantomData<R>,
 }
 
 pub type CliprdrClient = Cliprdr<Client>;
@@ -103,7 +103,7 @@ impl<R: Role> Cliprdr<R> {
             backend,
             state: CliprdrState::Initialization,
             capabilities: Capabilities::new(ClipboardProtocolVersion::V2, flags),
-            _marker: std::marker::PhantomData,
+            _marker: core::marker::PhantomData,
         }
     }
 

crates/ironrdp-connector/src/channel_connection.rs

@@ -1,5 +1,5 @@
 use std::collections::HashSet;
-use std::mem;
+use core::mem;
 
 use ironrdp_core::WriteBuf;
 use ironrdp_pdu::{mcs, x224::X224, PduHint};

crates/ironrdp-connector/src/connection.rs

@@ -1,5 +1,5 @@
 use std::borrow::Cow;
-use std::mem;
+use core::mem;
 use std::net::SocketAddr;
 
 use ironrdp_core::{decode, encode_vec, Encode, WriteBuf};

crates/ironrdp-connector/src/connection_activation.rs

@@ -1,4 +1,4 @@
-use std::mem;
+use core::mem;
 
 use ironrdp_pdu::rdp::{self, capability_sets::CapabilitySet};
 

crates/ironrdp-connector/src/connection_finalization.rs

@@ -1,4 +1,4 @@
-use std::mem;
+use core::mem;
 
 use ironrdp_core::WriteBuf;
 use ironrdp_pdu::rdp::capability_sets::SERVER_CHANNEL_ID;

crates/ironrdp-connector/src/license_exchange.rs

@@ -1,5 +1,5 @@
 use core::fmt;
-use std::mem;
+use core::mem;
 
 use ironrdp_core::WriteBuf;
 use ironrdp_pdu::rdp::server_license::{self, LicensePdu, ServerLicenseError};

crates/ironrdp-futures/src/lib.rs

@@ -7,7 +7,7 @@
 pub use ironrdp_async::*;
 
 use std::io;
-use std::pin::Pin;
+use core::pin::Pin;
 
 use bytes::BytesMut;
 use futures_util::io::{AsyncRead, AsyncWrite};
@@ -42,7 +42,7 @@ impl<S> FramedRead for FuturesStream<S>
 where
     S: Send + Sync + Unpin + AsyncRead,
 {
-    type ReadFut<'read> = Pin<Box<dyn std::future::Future<Output = io::Result<usize>> + Send + Sync + 'read>>
+    type ReadFut<'read> = Pin<Box<dyn core::future::Future<Output = io::Result<usize>> + Send + Sync + 'read>>
     where
         Self: 'read;
 
@@ -64,7 +64,7 @@ impl<S> FramedWrite for FuturesStream<S>
 where
     S: Send + Sync + Unpin + AsyncWrite,
 {
-    type WriteAllFut<'write> = Pin<Box<dyn std::future::Future<Output = io::Result<()>> + Send + Sync + 'write>>
+    type WriteAllFut<'write> = Pin<Box<dyn core::future::Future<Output = io::Result<()>> + Send + Sync + 'write>>
     where
         Self: 'write;
 
@@ -110,7 +110,7 @@ impl<S> FramedRead for LocalFuturesStream<S>
 where
     S: Unpin + AsyncRead,
 {
-    type ReadFut<'read> = Pin<Box<dyn std::future::Future<Output = io::Result<usize>> + 'read>>
+    type ReadFut<'read> = Pin<Box<dyn core::future::Future<Output = io::Result<usize>> + 'read>>
     where
         Self: 'read;
 
@@ -132,7 +132,7 @@ impl<S> FramedWrite for LocalFuturesStream<S>
 where
     S: Unpin + AsyncWrite,
 {
-    type WriteAllFut<'write> = Pin<Box<dyn std::future::Future<Output = io::Result<()>> + 'write>>
+    type WriteAllFut<'write> = Pin<Box<dyn core::future::Future<Output = io::Result<()>> + 'write>>
     where
         Self: 'write;
 

crates/ironrdp-graphics/src/color_conversion.rs

@@ -1,4 +1,4 @@
-use std::cmp::min;
+use core::cmp::min;
 use std::io::{self, Write};
 
 use crate::image_processing::PixelFormat;

crates/ironrdp-graphics/src/image_processing.rs

@@ -1,4 +1,5 @@
-use std::{cmp, io};
+use core::{cmp, fmt};
+use std::io;
 
 use byteorder::WriteBytesExt;
 use ironrdp_pdu::geometry::{InclusiveRectangle, Rectangle as _};
@@ -15,8 +16,8 @@ pub struct ImageRegionMut<'a> {
     pub data: &'a mut [u8],
 }
 
-impl std::fmt::Debug for ImageRegionMut<'_> {
+impl fmt::Debug for ImageRegionMut<'_> {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("ImageRegionMut")
             .field("region", &self.region)
             .field("step", &self.step)
@@ -33,8 +34,8 @@ pub struct ImageRegion<'a> {
     pub data: &'a [u8],
 }
 
-impl std::fmt::Debug for ImageRegion<'_> {
+impl fmt::Debug for ImageRegion<'_> {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("ImageRegion")
             .field("region", &self.region)
             .field("step", &self.step)

crates/ironrdp-graphics/src/rdp6/rle.rs

@@ -1,3 +1,4 @@
+use core::cmp;
 use std::io::{Read, Write};
 
 use byteorder::ReadBytesExt;
@@ -167,7 +168,7 @@ pub(crate) fn decompress_8bpp_plane(
 }
 
 struct RleEncoderScanlineIterator<I> {
-    inner: std::iter::Enumerate<I>,
+    inner: core::iter::Enumerate<I>,
     width: usize,
     prev_scanline: Vec<u8>,
 }
@@ -201,7 +202,7 @@ impl<I: Iterator<Item = u8>> Iterator for RleEncoderScanlineIterator<I> {
     fn next(&mut self) -> Option<Self::Item> {
         let (idx, mut next) = self.inner.next()?;
 
-        let prev = std::mem::replace(&mut self.prev_scanline[idx % self.width], next);
+        let prev = core::mem::replace(&mut self.prev_scanline[idx % self.width], next);
         if idx >= self.width {
             next = Self::delta_value(prev, next);
         }
@@ -301,7 +302,7 @@ impl RlePlaneEncoder {
             raw = &raw[15..];
         }
 
-        let control = ((raw.len() as u8) << 4) + std::cmp::min(run, 15) as u8;
+        let control = ((raw.len() as u8) << 4) + cmp::min(run, 15) as u8;
 
         ensure_size!(dst: dst, size: raw.len() + 1);
 
@@ -322,9 +323,9 @@ impl RlePlaneEncoder {
         while run >= 16 {
             ensure_size!(dst: dst, size: 1);
 
-            let current = std::cmp::min(run, MAX_DECODED_SEGMENT_SIZE) as u8;
+            let current = cmp::min(run, MAX_DECODED_SEGMENT_SIZE) as u8;
 
-            let c_raw_bytes = std::cmp::min(current / 16, 2);
+            let c_raw_bytes = cmp::min(current / 16, 2);
             let n_run_length = current - c_raw_bytes * 16;
 
             let control = (n_run_length << 4) + c_raw_bytes;

crates/ironrdp-graphics/src/rectangle_processing.rs

@@ -1,4 +1,4 @@
-use std::cmp::{max, min};
+use core::cmp::{max, min};
 
 use ironrdp_pdu::geometry::{InclusiveRectangle, Rectangle as _};
 

crates/ironrdp-graphics/src/rle.rs

@@ -10,7 +10,7 @@
 //!   - [interleaved.c](https://github.com/FreeRDP/FreeRDP/blob/db98f16e5bce003c898e8c85eb7af964f22a16a8/libfreerdp/codec/interleaved.c#L3)
 //!   - [bitmap.c](https://github.com/FreeRDP/FreeRDP/blob/3a8dce07ea0262b240025bd68b63801578ca63f0/libfreerdp/codec/include/bitmap.c)
 use core::fmt;
-use std::ops::BitXor;
+use core::ops::BitXor;
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub enum RlePixelFormat {
@@ -319,7 +319,7 @@ fn decompress_impl<Mode: DepthMode>(src: &[u8], dst: &mut [u8], row_delta: usize
             let mut number_to_read = run_length;
 
             while number_to_read > 0 {
-                let c_bits = std::cmp::min(8, number_to_read);
+                let c_bits = core::cmp::min(8, number_to_read);
 
                 ensure_size!(from: src, size: 1);
                 let bitmask = src.read_u8();

crates/ironrdp-graphics/src/rlgr.rs

@@ -1,4 +1,4 @@
-use std::cmp::min;
+use core::cmp::min;
 use std::io;
 
 use bitvec::field::BitField as _;

crates/ironrdp-graphics/src/utils.rs

@@ -1,4 +1,4 @@
-use std::ops;
+use core::ops;
 
 use bitvec::prelude::{BitSlice, Msb0};
 

crates/ironrdp-graphics/src/zgfx/circular_buffer.rs

@@ -1,4 +1,4 @@
-use std::cmp::min;
+use core::cmp::min;
 use std::io;
 
 pub(crate) struct FixedCircularBuffer {

crates/ironrdp-input/src/lib.rs

@@ -380,7 +380,7 @@ impl Database {
             events.push(FastPathInputEvent::KeyboardEvent(flags, scancode));
         }
 
-        for character in std::mem::take(&mut self.unicode_keyboard_state).into_iter() {
+        for character in core::mem::take(&mut self.unicode_keyboard_state).into_iter() {
             let mut utf16_buffer = [0u16; 2];
             let utf16_code_units = character.encode_utf16(&mut utf16_buffer);
 

crates/ironrdp-pdu/src/basic_output/bitmap.rs

@@ -3,7 +3,7 @@ mod tests;
 
 pub mod rdp6;
 
-use std::fmt::{self, Debug};
+use core::fmt::{self, Debug};
 
 use bitflags::bitflags;
 

crates/ironrdp-pdu/src/basic_output/surface_commands.rs

@@ -173,8 +173,8 @@ pub struct ExtendedBitmapDataPdu<'a> {
     pub data: &'a [u8],
 }
 
-impl std::fmt::Debug for ExtendedBitmapDataPdu<'_> {
+impl core::fmt::Debug for ExtendedBitmapDataPdu<'_> {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         f.debug_struct("ExtendedBitmapDataPdu")
             .field("bpp", &self.bpp)
             .field("codec_id", &self.codec_id)

crates/ironrdp-pdu/src/crypto/rc4.rs

@@ -1,4 +1,4 @@
-use std::{fmt, ops};
+use core::{fmt, ops};
 
 #[derive(Debug, Clone)]
 pub(crate) struct Rc4 {

crates/ironrdp-pdu/src/geometry.rs

@@ -1,4 +1,4 @@
-use std::cmp::{max, min};
+use core::cmp::{max, min};
 
 use ironrdp_core::{ensure_fixed_part_size, ReadCursor, WriteCursor};
 use ironrdp_core::{Decode, DecodeResult, Encode, EncodeResult};

crates/ironrdp-pdu/src/rdp/client_info.rs

@@ -704,7 +704,7 @@ fn string_len(value: &str, character_set: CharacterSet) -> u16 {
 
 pub mod builder {
     use super::*;
-    use std::marker::PhantomData;
+    use core::marker::PhantomData;
 
     pub struct ExtendedClientOptionalInfoBuilderStateSetTimeZone;
     pub struct ExtendedClientOptionalInfoBuilderStateSetSessionId;

crates/ironrdp-pdu/src/rdp/server_license/server_license_request.rs

@@ -189,7 +189,7 @@ impl<'de> Decode<'de> for Scope {
         let mut blob_data = src.read_slice(blob_header.length).to_vec();
         blob_data.resize(blob_data.len() - UTF8_NULL_TERMINATOR_SIZE, 0);
 
-        if let Ok(data) = std::str::from_utf8(&blob_data) {
+        if let Ok(data) = core::str::from_utf8(&blob_data) {
             Ok(Self(String::from(data)))
         } else {
             Err(invalid_field_err!("scope", "scope is not utf8"))

crates/ironrdp-pdu/src/rdp/vc/dvc/gfx/graphics_messages/avc_messages.rs

@@ -1,4 +1,4 @@
-use std::fmt::Debug;
+use core::fmt::Debug;
 
 use bit_field::BitField;
 use bitflags::bitflags;
@@ -65,7 +65,7 @@ pub struct Avc420BitmapStream<'a> {
 }
 
 impl Debug for Avc420BitmapStream<'_> {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         f.debug_struct("Avc420BitmapStream")
             .field("rectangles", &self.rectangles)
             .field("quant_qual_vals", &self.quant_qual_vals)

crates/ironrdp-pdu/src/utils.rs

@@ -1,8 +1,8 @@
 use byteorder::{LittleEndian, ReadBytesExt as _};
 use num_derive::{FromPrimitive, ToPrimitive};
-use std::fmt::Debug;
+use core::fmt::Debug;
-use std::mem::size_of;
+use core::mem::size_of;
-use std::ops::Add;
+use core::ops::Add;
 
 use crate::{DecodeResult, EncodeResult};
 use ironrdp_core::{ensure_size, invalid_field_err, other_err, ReadCursor, WriteCursor};
@@ -245,7 +245,7 @@ impl<T> SplitTo for &mut [T] {
     fn split_to(&mut self, n: usize) -> Self {
         assert!(n <= self.len());
 
-        let (a, b) = std::mem::take(self).split_at_mut(n);
+        let (a, b) = core::mem::take(self).split_at_mut(n);
         *self = b;
 
         a

crates/ironrdp-rdpdr/src/pdu/efs.rs

@@ -3,8 +3,8 @@
 //! [\[MS-RDPEFS\]: Remote Desktop Protocol: File System Virtual Channel Extension]: https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpefs/34d9de58-b2b5-40b6-b970-f82d4603bdb5
 
 use core::fmt;
-use std::fmt::{Debug, Display};
+use core::fmt::{Debug, Display};
-use std::mem::size_of;
+use core::mem::size_of;
 
 use bitflags::bitflags;
 use ironrdp_core::{
@@ -3178,7 +3178,7 @@ impl DeviceReadResponse {
 }
 
 impl Debug for DeviceReadResponse {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("DeviceReadResponse")
             .field("device_io_reply", &self.device_io_reply)
             .field("read_data", &format!("Vec<u8> of length {}", self.read_data.len()))

crates/ironrdp-rdpdr/src/pdu/esc.rs

@@ -5,7 +5,7 @@
 pub mod ndr;
 pub mod rpce;
 
-use std::mem::size_of;
+use core::mem::size_of;
 
 use bitflags::bitflags;
 use ironrdp_core::{

crates/ironrdp-rdpdr/src/pdu/esc/ndr.rs

@@ -21,7 +21,7 @@
 //!
 //! [smartcard_pack.c]: https://github.com/FreeRDP/FreeRDP/blob/ff303a9bda911c54ffc1b9f2471acd79c897b075/libfreerdp/utils/smartcard_pack.c
 
-use std::mem::size_of;
+use core::mem::size_of;
 
 use ironrdp_core::{ensure_size, invalid_field_err, DecodeResult, EncodeResult, ReadCursor, WriteCursor};
 use ironrdp_pdu::utils::{self, CharacterSet};

crates/ironrdp-rdpdr/src/pdu/esc/rpce.rs

@@ -2,7 +2,7 @@
 //!
 //! [\[MS-RPCE\]: Remote Procedure Call Protocol Extensions]: https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15
 
-use std::mem::size_of;
+use core::mem::size_of;
 
 use ironrdp_core::{
     cast_length, ensure_size, invalid_field_err, DecodeError, DecodeResult, EncodeResult, ReadCursor, WriteCursor,
@@ -140,12 +140,12 @@ impl<T: HeaderlessEncode> Encode for Pdu<T> {}
 ///
 /// Implementers should typically avoid implementing this trait directly
 /// and instead implement [`HeaderlessEncode`], and wrap it in a [`Pdu`].
-pub trait Encode: ironrdp_core::Encode + Send + std::fmt::Debug {}
+pub trait Encode: ironrdp_core::Encode + Send + core::fmt::Debug {}
 
 /// Trait for types that can be encoded into an [MS-RPCE] message.
 ///
 /// Implementers should typically implement this trait instead of [`Encode`].
-pub trait HeaderlessEncode: Send + std::fmt::Debug {
+pub trait HeaderlessEncode: Send + core::fmt::Debug {
     /// Encodes the instance into a buffer sans its headers.
     fn encode(&self, dst: &mut WriteCursor<'_>) -> EncodeResult<()>;
     /// Returns the name associated with this RPCE PDU.

crates/ironrdp-rdpdr/src/pdu/mod.rs

@@ -1,5 +1,5 @@
-use std::fmt::{self, Display};
+use core::fmt::{self, Display};
-use std::mem::size_of;
+use core::mem::size_of;
 
 use ironrdp_core::{
     ensure_size, invalid_field_err, unsupported_value_err, DecodeError, DecodeResult, EncodeResult, ReadCursor,

crates/ironrdp-rdpsnd-native/examples/cpal.rs

@@ -1,6 +1,6 @@
 use std::sync::mpsc;
 use std::thread;
-use std::time::Duration;
+use core::time::Duration;
 
 use anyhow::Context;
 use cpal::traits::StreamTrait;

crates/ironrdp-rdpsnd-native/src/cpal.rs

@@ -1,9 +1,9 @@
 use std::borrow::Cow;
-use std::sync::atomic::{AtomicBool, Ordering};
+use core::sync::atomic::{AtomicBool, Ordering};
 use std::sync::mpsc::{self, Receiver, Sender};
 use std::sync::Arc;
 use std::thread::{self, JoinHandle};
-use std::time::Duration;
+use core::time::Duration;
 
 use anyhow::{bail, Context};
 use cpal::traits::{DeviceTrait, HostTrait};

crates/ironrdp-rdpsnd/src/client.rs

@@ -16,7 +16,7 @@ use tracing::{debug, error};
 use crate::pdu::{self, AudioFormat, PitchPdu, ServerAudioFormatPdu, TrainingPdu, VolumePdu};
 use crate::server::RdpsndSvcMessages;
 
-pub trait RdpsndClientHandler: Send + std::fmt::Debug {
+pub trait RdpsndClientHandler: Send + core::fmt::Debug {
     fn wave(&mut self, format: &AudioFormat, ts: u32, data: Cow<'_, [u8]>);
 
     fn set_volume(&mut self, volume: VolumePdu);

crates/ironrdp-rdpsnd/src/server.rs

@@ -28,7 +28,7 @@ pub enum RdpsndServerMessage {
     Error(Box<dyn RdpsndError>),
 }
 
-pub trait RdpsndServerHandler: Send + std::fmt::Debug {
+pub trait RdpsndServerHandler: Send + core::fmt::Debug {
     fn get_formats(&self) -> &[pdu::AudioFormat];
 
     fn start(&mut self, client_format: &ClientAudioFormatPdu) -> Option<u16>;

crates/ironrdp-server/src/builder.rs

@@ -187,7 +187,7 @@ struct NoopDisplayUpdates;
 #[async_trait::async_trait]
 impl RdpServerDisplayUpdates for NoopDisplayUpdates {
     async fn next_update(&mut self) -> Option<DisplayUpdate> {
-        let () = std::future::pending().await;
+        let () = core::future::pending().await;
         unreachable!()
     }
 }

crates/ironrdp-server/src/display.rs

@@ -1,4 +1,4 @@
-use std::num::NonZeroU16;
+use core::num::NonZeroU16;
 
 use anyhow::Result;
 use ironrdp_displaycontrol::pdu::DisplayControlMonitorLayout;
@@ -39,8 +39,8 @@ pub struct RGBAPointer {
     pub data: Vec<u8>,
 }
 
-impl std::fmt::Debug for RGBAPointer {
+impl core::fmt::Debug for RGBAPointer {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         f.debug_struct("RGBAPointer")
             .field("with", &self.width)
             .field("height", &self.height)
@@ -78,8 +78,8 @@ pub struct BitmapUpdate {
     pub stride: usize,
 }
 
-impl std::fmt::Debug for BitmapUpdate {
+impl core::fmt::Debug for BitmapUpdate {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         f.debug_struct("BitmapUpdate")
             .field("top", &self.top)
             .field("left", &self.left)

crates/ironrdp-server/src/encoder/mod.rs

@@ -1,7 +1,7 @@
 mod bitmap;
 pub(crate) mod rfx;
 
-use std::{cmp, mem};
+use core::{cmp, mem};
 
 use anyhow::{Context, Result};
 use ironrdp_core::Encode;

crates/ironrdp-server/src/encoder/rfx.rs

@@ -23,7 +23,6 @@ impl RfxEncoder {
     }
 
     // FIXME: rewrite to use WriteCursor
-    #[allow(clippy::similar_names)] // It’s hard to find better names for cr, cb, etc.
     pub(crate) fn encode(&mut self, bitmap: &BitmapUpdate) -> EncodeResult<Vec<u8>> {
         let width = bitmap.width.get();
         let height = bitmap.height.get();
@@ -184,6 +183,8 @@ impl<'a> UpdateEncoder<'a> {
     }
 
     fn encode_tile<'b>(&self, tile_x: usize, tile_y: usize, buf: &'b mut [u8]) -> Result<EncodedTile<'b>, RlgrError> {
+        #![allow(clippy::similar_names)] // It’s hard to find better names for cr, cb, etc.
+
         assert!(buf.len() >= 4096 * 3);
 
         let bpp: usize = self.bitmap.format.bytes_per_pixel().into();
@@ -192,8 +193,8 @@ impl<'a> UpdateEncoder<'a> {
 
         let x = tile_x * 64;
         let y = tile_y * 64;
-        let tile_width = std::cmp::min(width - x, 64);
+        let tile_width = core::cmp::min(width - x, 64);
-        let tile_height = std::cmp::min(height - y, 64);
+        let tile_height = core::cmp::min(height - y, 64);
         let input = &self.bitmap.data[y * self.bitmap.stride + x * bpp..];
 
         let y = &mut [0i16; 4096];

crates/ironrdp-server/src/lib.rs

@@ -43,10 +43,10 @@ macro_rules! time_warn {
     ($context:expr, $threshold_ms:expr, $op:expr) => {{
         #[cold]
         fn warn_log(context: &str, duration: u128) {
-            use std::sync::atomic::AtomicUsize;
+            use ::core::sync::atomic::AtomicUsize;
 
             static COUNT: AtomicUsize = AtomicUsize::new(0);
-            let current_count = COUNT.fetch_add(1, ::std::sync::atomic::Ordering::Relaxed);
+            let current_count = COUNT.fetch_add(1, ::core::sync::atomic::Ordering::Relaxed);
             if current_count < 50 || current_count % 100 == 0 {
                 ::tracing::warn!("{context} took {duration} ms! (count: {current_count})");
             }

crates/ironrdp-server/src/server.rs

@@ -947,7 +947,7 @@ impl<W> FramedWrite for SharedWriter<'_, W>
 where
     W: FramedWrite,
 {
-    type WriteAllFut<'write> = std::pin::Pin<Box<dyn std::future::Future<Output = std::io::Result<()>> + 'write>>
+    type WriteAllFut<'write> = core::pin::Pin<Box<dyn core::future::Future<Output = std::io::Result<()>> + 'write>>
     where
         Self: 'write;
 

crates/ironrdp-session/src/image.rs

@@ -38,8 +38,8 @@ pub struct DecodedImage {
     height: u16,
 }
 
-impl std::fmt::Debug for DecodedImage {
+impl core::fmt::Debug for DecodedImage {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         f.debug_struct("DecodedImage")
             .field("pixel_format", &self.pixel_format)
             .field("data_len", &self.data.len())

crates/ironrdp-session/src/rfx.rs

@@ -1,4 +1,4 @@
-use std::cmp::min;
+use core::cmp::min;
 
 use ironrdp_graphics::color_conversion::{self, YCbCrBuffer};
 use ironrdp_graphics::rectangle_processing::Region;

crates/ironrdp-svc/src/lib.rs

@@ -17,7 +17,7 @@ use alloc::collections::BTreeMap;
 use core::any::TypeId;
 use core::fmt;
 use std::borrow::Cow;
-use std::marker::PhantomData;
+use core::marker::PhantomData;
 
 use bitflags::bitflags;
 use ironrdp_core::{assert_obj_safe, AsAny, DecodeResult, EncodeResult, ReadCursor, WriteBuf, WriteCursor};
@@ -311,7 +311,7 @@ impl ChunkProcessor {
         // If this was an unchunked message, or the last in a series of chunks, return the payload
         if last {
             // Take the chunked_pdu buffer and replace it with an empty one
-            return Ok(Some(std::mem::take(&mut self.chunked_pdu)));
+            return Ok(Some(core::mem::take(&mut self.chunked_pdu)));
         }
 
         // This was an intermediate chunk, return None
@@ -341,7 +341,7 @@ impl ChunkProcessor {
 
         let total_len = encoded_pdu.filled_len();
         let mut chunk_start_index: usize = 0;
-        let mut chunk_end_index = std::cmp::min(total_len, max_chunk_len);
+        let mut chunk_end_index = core::cmp::min(total_len, max_chunk_len);
         loop {
             // Create a buffer to hold this next chunk.
             // TODO(perf): Reuse this buffer using `clear` and `filled` as appropriate.
@@ -385,7 +385,7 @@ impl ChunkProcessor {
 
             // Otherwise, update the chunk start and end indices for the next iteration.
             chunk_start_index = chunk_end_index;
-            chunk_end_index = std::cmp::min(total_len, chunk_end_index.saturating_add(max_chunk_len));
+            chunk_end_index = core::cmp::min(total_len, chunk_end_index.saturating_add(max_chunk_len));
         }
 
         Ok(chunks)

crates/ironrdp-testsuite-core/tests/dvc/mod.rs

@@ -18,7 +18,7 @@ fn test_encodes<T: Encode>(data: &T, expected: &[u8]) {
 }
 
 // TODO: This likely generalizes to many tests and can thus be reused outside of this module.
-fn test_decodes<'a, T: Decode<'a> + PartialEq + std::fmt::Debug>(encoded: &'a [u8], expected: &T) {
+fn test_decodes<'a, T: Decode<'a> + PartialEq + core::fmt::Debug>(encoded: &'a [u8], expected: &T) {
     let mut src = ReadCursor::new(encoded);
     assert_eq!(*expected, T::decode(&mut src).unwrap());
 }

crates/ironrdp-testsuite-core/tests/input/fastpath_packets.rs

@@ -20,7 +20,7 @@ fn mouse_buttons(#[case] button: MouseButton, #[case] expected_flag: MouseFlags)
     let mut db = Database::default();
 
     {
-        let packets = db.apply(std::iter::once(Operation::MouseButtonPressed(button)));
+        let packets = db.apply(core::iter::once(Operation::MouseButtonPressed(button)));
         let packet = packets.into_iter().next().expect("one input event");
 
         let expected_input_event = match expected_flag {
@@ -41,7 +41,7 @@ fn mouse_buttons(#[case] button: MouseButton, #[case] expected_flag: MouseFlags)
     }
 
     {
-        let packets = db.apply(std::iter::once(Operation::MouseButtonReleased(button)));
+        let packets = db.apply(core::iter::once(Operation::MouseButtonReleased(button)));
         let packet = packets.into_iter().next().expect("one input event");
 
         let expected_input_event = match expected_flag {

crates/ironrdp-testsuite-core/tests/input/smoke.rs

@@ -42,7 +42,7 @@ fn smoke_mouse_buttons() {
         let mut db = Database::default();
 
         for op in ops {
-            db.apply(std::iter::once(op.clone()));
+            db.apply(core::iter::once(op.clone()));
 
             match op {
                 Operation::MouseButtonPressed(button) => {
@@ -85,7 +85,7 @@ fn smoke_keyboard() {
         let mut db = Database::default();
 
         for op in ops {
-            let packets = db.apply(std::iter::once(op.clone()));
+            let packets = db.apply(core::iter::once(op.clone()));
 
             match op {
                 Operation::KeyPressed(scancode) => {

crates/ironrdp-tokio/src/lib.rs

@@ -7,7 +7,7 @@
 pub use ironrdp_async::*;
 
 use std::io;
-use std::pin::Pin;
+use core::pin::Pin;
 
 use bytes::BytesMut;
 use tokio::io::{AsyncRead, AsyncWrite, ReadHalf, WriteHalf};
@@ -62,7 +62,7 @@ impl<S> FramedRead for TokioStream<S>
 where
     S: Send + Sync + Unpin + AsyncRead,
 {
-    type ReadFut<'read> = Pin<Box<dyn std::future::Future<Output = io::Result<usize>> + Send + Sync + 'read>>
+    type ReadFut<'read> = Pin<Box<dyn core::future::Future<Output = io::Result<usize>> + Send + Sync + 'read>>
     where
         Self: 'read;
 
@@ -77,7 +77,7 @@ impl<S> FramedWrite for TokioStream<S>
 where
     S: Send + Sync + Unpin + AsyncWrite,
 {
-    type WriteAllFut<'write> = Pin<Box<dyn std::future::Future<Output = io::Result<()>> + Send + Sync + 'write>>
+    type WriteAllFut<'write> = Pin<Box<dyn core::future::Future<Output = io::Result<()>> + Send + Sync + 'write>>
     where
         Self: 'write;
 
@@ -123,7 +123,7 @@ impl<S> FramedRead for LocalTokioStream<S>
 where
     S: Unpin + AsyncRead,
 {
-    type ReadFut<'read> = Pin<Box<dyn std::future::Future<Output = io::Result<usize>> + 'read>>
+    type ReadFut<'read> = Pin<Box<dyn core::future::Future<Output = io::Result<usize>> + 'read>>
     where
         Self: 'read;
 
@@ -138,7 +138,7 @@ impl<S> FramedWrite for LocalTokioStream<S>
 where
     S: Unpin + AsyncWrite,
 {
-    type WriteAllFut<'write> = Pin<Box<dyn std::future::Future<Output = io::Result<()>> + 'write>>
+    type WriteAllFut<'write> = Pin<Box<dyn core::future::Future<Output = io::Result<()>> + 'write>>
     where
         Self: 'write;
 

crates/ironrdp-web/src/canvas.rs

@@ -1,4 +1,4 @@
-use std::num::NonZeroU32;
+use core::num::NonZeroU32;
 
 use ironrdp::pdu::geometry::{InclusiveRectangle, Rectangle as _};
 use softbuffer::{NoDisplayHandle, NoWindowHandle};

crates/ironrdp-web/src/clipboard/mod.rs

@@ -429,7 +429,7 @@ impl WasmClipboard {
                 .send_cliprdr_message(ClipboardMessage::SendInitiatePaste(*format));
         } else {
             // All formats were read, send clipboard to JS
-            let transaction = std::mem::take(&mut self.remote_clipboard);
+            let transaction = core::mem::take(&mut self.remote_clipboard);
             if transaction.is_empty() {
                 return Ok(());
             }

crates/ironrdp-web/src/network_client.rs

@@ -1,4 +1,4 @@
-use std::pin::Pin;
+use core::pin::Pin;
 
 use futures_util::Future;
 use ironrdp::connector::sspi::generator::NetworkRequest;

crates/ironrdp-web/src/session.rs

@@ -3,9 +3,9 @@
 
 use core::cell::RefCell;
 use std::borrow::Cow;
-use std::num::NonZeroU32;
+use core::num::NonZeroU32;
 use std::rc::Rc;
-use std::time::Duration;
+use core::time::Duration;
 
 use anyhow::Context as _;
 use base64::Engine as _;

crates/ironrdp/examples/screenshot.rs

@@ -23,7 +23,7 @@ extern crate tracing;
 use std::io::Write as _;
 use std::net::TcpStream;
 use std::path::PathBuf;
-use std::time::Duration;
+use core::time::Duration;
 
 use anyhow::Context as _;
 use connector::Credentials;

ffi/src/connector/mod.rs

@@ -7,7 +7,7 @@ pub mod state;
 pub mod ffi {
     use diplomat_runtime::DiplomatWriteable;
     use ironrdp::{connector::Sequence as _, displaycontrol::client::DisplayControlClient};
-    use std::fmt::Write;
+    use core::fmt::Write;
     use tracing::info;
 
     use crate::{

ffi/src/credssp/network.rs

@@ -94,7 +94,7 @@ pub mod ffi {
         }
 
         pub fn get_url(&self, writeable: &mut diplomat_runtime::DiplomatWriteable) -> Result<(), Box<IronRdpError>> {
-            use std::fmt::Write;
+            use core::fmt::Write;
             let url: &str = self.0.url.as_ref();
             write!(writeable, "{}", url)?;
             Ok(())

ffi/src/error.rs

@@ -1,5 +1,5 @@
 #![allow(clippy::return_self_not_must_use)]
-use std::fmt::Display;
+use core::fmt::Display;
 
 use ironrdp::{cliprdr::backend::ClipboardError, connector::ConnectorError, session::SessionError};
 #[cfg(target_os = "windows")]
@@ -55,8 +55,8 @@ impl From<std::io::Error> for IronRdpErrorKind {
     }
 }
 
-impl From<std::fmt::Error> for IronRdpErrorKind {
+impl From<core::fmt::Error> for IronRdpErrorKind {
-    fn from(_val: std::fmt::Error) -> Self {
+    fn from(_val: core::fmt::Error) -> Self {
         IronRdpErrorKind::Generic
     }
 }
@@ -110,7 +110,7 @@ struct IronRdpErrorInner {
 #[diplomat::bridge]
 pub mod ffi {
     use diplomat_runtime::DiplomatWriteable;
-    use std::fmt::Write as _;
+    use core::fmt::Write as _;
 
     #[derive(Debug, Clone, Copy, thiserror::Error)]
     pub enum IronRdpErrorKind {
@@ -177,7 +177,7 @@ impl ValueConsumedError {
 }
 
 impl Display for ValueConsumedError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         if let Some(reason) = &self.reason {
             write!(f, "{}: {}", self.item, reason)
         } else {
@@ -217,7 +217,7 @@ impl IncorrectEnumTypeErrorBuilder {
 }
 
 impl Display for IncorrectEnumTypeError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         write!(
             f,
             "expected enum variable {}, of enum {}",
@@ -252,7 +252,7 @@ impl WrongOSError {
 }
 
 impl Display for WrongOSError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         if let Some(custom_message) = &self.custom_message {
             write!(f, "{}", custom_message)?;
         }

ffi/src/input.rs

@@ -11,7 +11,7 @@ pub mod ffi {
         }
 
         pub fn apply(&mut self, operation: &Operation) -> Box<FastPathInputEventIterator> {
-            let res = self.0.apply(std::iter::once(operation.0.clone()));
+            let res = self.0.apply(core::iter::once(operation.0.clone()));
             Box::new(res.to_vec().into())
         }
     }

xtask/src/cov.rs

@@ -72,7 +72,7 @@ pub fn report(sh: &Shell, html_report: bool) -> anyhow::Result<()> {
 }
 
 pub fn report_github(sh: &Shell, repo: &str, pr_id: u32) -> anyhow::Result<()> {
-    use std::fmt::Write as _;
+    use core::fmt::Write as _;
 
     const COMMENT_HEADER: &str = "## Coverage Report :robot: :gear:";
     const DIFF_THRESHOLD: f64 = 0.005;

xtask/src/main.rs

@@ -187,14 +187,14 @@ pub fn local_bin() -> PathBuf {
     path
 }
 
-static VERBOSE: std::sync::atomic::AtomicBool = std::sync::atomic::AtomicBool::new(false);
+static VERBOSE: core::sync::atomic::AtomicBool = core::sync::atomic::AtomicBool::new(false);
 
 pub fn set_verbose(value: bool) {
-    VERBOSE.store(value, std::sync::atomic::Ordering::Release);
+    VERBOSE.store(value, core::sync::atomic::Ordering::Release);
 }
 
 pub fn is_verbose() -> bool {
-    VERBOSE.load(std::sync::atomic::Ordering::Acquire)
+    VERBOSE.load(core::sync::atomic::Ordering::Acquire)
 }
 
 pub fn list_files(sh: &Shell, path: impl AsRef<Path>) -> anyhow::Result<()> {