Add missing fmt::Debug impls (#224)

* Add missing fmt::Debug impls

ntex-http/src/error.rs

@@ -36,7 +36,7 @@ enum ErrorKind {
 }
 
 impl fmt::Debug for Error {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_tuple("ntex_http::Error")
             // Skip the noise of the ErrorKind enum
             .field(&self.get_ref())

ntex-http/src/lib.rs

@@ -1,4 +1,6 @@
 //! Http protocol support.
+#![deny(rust_2018_idioms, unreachable_pub, missing_debug_implementations)]
+
 pub mod error;
 mod map;
 mod value;

ntex-http/src/map.rs

@@ -62,6 +62,7 @@ impl Value {
     }
 }
 
+#[derive(Debug)]
 pub struct ValueIntoIter {
     value: Value,
 }
@@ -444,6 +445,7 @@ impl TryFrom<&str> for Value {
     }
 }
 
+#[derive(Debug)]
 pub struct GetAll<'a> {
     idx: usize,
     item: Option<&'a Value>,
@@ -477,6 +479,7 @@ impl<'a> Iterator for GetAll<'a> {
     }
 }
 
+#[derive(Debug)]
 pub struct Keys<'a>(hash_map::Keys<'a, HeaderName, Value>);
 
 impl<'a> Iterator for Keys<'a> {
@@ -497,6 +500,7 @@ impl<'a> IntoIterator for &'a HeaderMap {
     }
 }
 
+#[derive(Debug)]
 pub struct Iter<'a> {
     idx: usize,
     current: Option<(&'a HeaderName, &'a VecDeque<HeaderValue>)>,

ntex-http/src/value.rs

@@ -512,7 +512,7 @@ fn is_valid(b: u8) -> bool {
 impl Error for InvalidHeaderValue {}
 
 impl fmt::Debug for InvalidHeaderValue {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("InvalidHeaderValue")
             // skip _priv noise
             .finish()