fix warnings

src/error.rs

@@ -970,23 +970,13 @@ where
 #[cfg(feature = "fail")]
 mod failure_integration {
     use super::*;
-    use failure::{self, Fail};
 
     /// Compatibility for `failure::Error`
-    impl<T> ResponseError for failure::Compat<T>
-    where
-        T: fmt::Display + fmt::Debug + Sync + Send + 'static,
-    {
+    impl ResponseError for failure::Error {
         fn error_response(&self) -> Response {
             Response::new(StatusCode::INTERNAL_SERVER_ERROR)
         }
     }
-
-    impl From<failure::Error> for Error {
-        fn from(err: failure::Error) -> Error {
-            err.compat().into()
-        }
-    }
 }
 
 #[cfg(test)]

src/header/common/content_disposition.rs

@@ -27,7 +27,7 @@ fn split_once(haystack: &str, needle: char) -> (&str, &str) {
 /// first part and the left of the last part.
 fn split_once_and_trim(haystack: &str, needle: char) -> (&str, &str) {
     let (first, last) = split_once(haystack, needle);
-    (first.trim_right(), last.trim_left())
+    (first.trim_end(), last.trim_start())
 }
 
 /// The implied disposition of the content of the HTTP body.
@@ -324,7 +324,7 @@ impl ContentDisposition {
                         }
                     }
                     left = &left[end.ok_or(crate::error::ParseError::Header)? + 1..];
-                    left = split_once(left, ';').1.trim_left();
+                    left = split_once(left, ';').1.trim_start();
                     // In fact, it should not be Err if the above code is correct.
                     String::from_utf8(quoted_string)
                         .map_err(|_| crate::error::ParseError::Header)?

src/header/shared/quality_item.rs

@@ -58,7 +58,7 @@ impl<T: fmt::Display> fmt::Display for QualityItem<T> {
         match self.quality.0 {
             1000 => Ok(()),
             0 => f.write_str("; q=0"),
-            x => write!(f, "; q=0.{}", format!("{:03}", x).trim_right_matches('0')),
+            x => write!(f, "; q=0.{}", format!("{:03}", x).trim_end_matches('0')),
         }
     }
 }

src/request.rs

@@ -103,7 +103,7 @@ impl<P> Request<P> {
     }
 
     /// Mutable reference to the message's headers.
-    fn headers_mut(&mut self) -> &mut HeaderMap {
+    pub fn headers_mut(&mut self) -> &mut HeaderMap {
         &mut self.head_mut().headers
     }
 

src/test.rs

@@ -46,7 +46,6 @@ struct Inner {
     headers: HeaderMap,
     _cookies: Option<Vec<Cookie<'static>>>,
     payload: Option<Payload>,
-    prefix: u16,
 }
 
 impl Default for TestRequest {
@@ -58,7 +57,6 @@ impl Default for TestRequest {
             headers: HeaderMap::new(),
             _cookies: None,
             payload: None,
-            prefix: 0,
         }))
     }
 }

src/ws/client/mod.rs

@@ -25,20 +25,6 @@ impl Protocol {
         }
     }
 
-    fn is_http(self) -> bool {
-        match self {
-            Protocol::Https | Protocol::Http => true,
-            _ => false,
-        }
-    }
-
-    fn is_secure(self) -> bool {
-        match self {
-            Protocol::Https | Protocol::Wss => true,
-            _ => false,
-        }
-    }
-
     fn port(self) -> u16 {
         match self {
             Protocol::Http | Protocol::Ws => 80,