Fix clippy (v0.1.67) warnings

src/deflate/decode.rs

@@ -90,10 +90,7 @@ where
                     if used != len.into() {
                         Err(io::Error::new(
                             io::ErrorKind::UnexpectedEof,
-                            format!(
-                                "The reader has incorrect length: expected {}, read {}",
-                                len, used
-                            ),
+                            format!("The reader has incorrect length: expected {len}, read {used}"),
                         ))
                     } else {
                         Ok(())

src/deflate/symbol.rs

@@ -215,7 +215,7 @@ impl Decoder {
             0..=255 => Symbol::Code(lz77::Code::Literal(decoded as u8)),
             256 => Symbol::EndOfBlock,
             286 | 287 => {
-                let message = format!("The value {} must not occur in compressed data", decoded);
+                let message = format!("The value {decoded} must not occur in compressed data");
                 reader.set_last_error(io::Error::new(io::ErrorKind::InvalidData, message));
                 Symbol::EndOfBlock // dummy value
             }
@@ -392,8 +392,7 @@ impl HuffmanCodec for DynamicHuffmanCodec {
 
         if distance_code_count as usize > MAX_DISTANCE_CODE_COUNT {
             let message = format!(
-                "The value of HDIST is too big: max={}, actual={}",
-                MAX_DISTANCE_CODE_COUNT, distance_code_count
+                "The value of HDIST is too big: max={MAX_DISTANCE_CODE_COUNT}, actual={distance_code_count}"
             );
             return Err(io::Error::new(io::ErrorKind::InvalidData, message));
         }
@@ -491,7 +490,7 @@ fn build_bitwidth_codes(
         (&codec.literal, literal_code_count),
         (&codec.distance, distance_code_count),
     ] {
-        for (i, c) in (0..size).map(|x| e.lookup(x as u16).width).enumerate() {
+        for (i, c) in (0..size).map(|x| e.lookup(x).width).enumerate() {
             if i > 0 && run_lens.last().map_or(false, |s| s.value == c) {
                 run_lens.last_mut().unwrap().count += 1;
             } else {

src/huffman.rs

@@ -170,7 +170,7 @@ impl Decoder {
             }
             peek_bitwidth = bitwidth;
         }
-        reader.skip_bits(bitwidth as u8);
+        reader.skip_bits(bitwidth);
         value >> 5
     }
 }

src/non_blocking/transaction.rs

@@ -92,7 +92,7 @@ impl<R: Read> Read for TransactionalReader<R> {
         if self.offset < self.buffer.len() {
             let unread_buf_size = self.buffer.len() - self.offset;
             let size = cmp::min(buf.len(), unread_buf_size);
-            (&mut buf[0..size]).copy_from_slice(&self.buffer[self.offset..self.offset + size]);
+            buf[0..size].copy_from_slice(&self.buffer[self.offset..self.offset + size]);
             self.offset += size;
             return Ok(size);
         }

src/zlib.rs

@@ -181,22 +181,18 @@ impl Lz77WindowSize {
 /// - [Zlib Flush Modes](https://www.bolet.org/~pornin/deflate-flush.html)
 ///
 /// [zlib]: https://www.zlib.net/
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
+#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
 pub enum FlushMode {
     /// `Z_NO_FLUSH` (default).
     ///
     /// Note that when this parameter is specified,
     /// no `zlib` specific processing will not be executed but ordinal DEFLATE layer flushing will be performed.
+    #[default]
     None = 0,
 
     /// `Z_SYNC_FLUSH`.
     Sync = 2,
 }
-impl Default for FlushMode {
-    fn default() -> Self {
-        FlushMode::None
-    }
-}
 
 /// ZLIB header.
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]