chore: appease clippy

Fix clippy lints now triggered due to upgraded rust toolchain

Signed-off-by: Patrick Roy <roypat@amazon.co.uk>

src/request.rs

@@ -5,7 +5,7 @@ use std::fs::File;
 use std::str::from_utf8;
 
 use crate::common::ascii::{CR, CRLF_LEN, LF, SP};
-pub use crate::common::HttpHeaderError;
+
 pub use crate::common::RequestError;
 use crate::common::{Body, Method, Version};
 use crate::headers::Headers;
@@ -549,7 +549,7 @@ mod tests {
         let request = Request::try_from(request_bytes, None);
         assert_eq!(
             request.unwrap_err(),
-            RequestError::HeaderError(HttpHeaderError::InvalidValue(
+            RequestError::HeaderError(crate::HttpHeaderError::InvalidValue(
                 "Accept-Encoding".to_string(),
                 "identity;q=0".to_string()
             ))

src/server.rs

@@ -8,7 +8,7 @@ use std::os::unix::net::{UnixListener, UnixStream};
 use std::path::Path;
 
 use crate::common::{Body, Version};
-pub use crate::common::{ConnectionError, RequestError, ServerError};
+pub use crate::common::{ConnectionError, ServerError};
 use crate::connection::HttpConnection;
 use crate::request::Request;
 use crate::response::{Response, StatusCode};
@@ -972,7 +972,7 @@ mod tests {
         assert_eq!(server.connections.len(), 10);
 
         // Check that the server detects a connection shutdown.
-        let sock: &UnixStream = sockets.get(0).unwrap();
+        let sock: &UnixStream = sockets.first().unwrap();
         sock.shutdown(Shutdown::Both).unwrap();
         assert!(server.requests().unwrap().is_empty());
         // Server should drop a closed connection.