remove deprecated try macros

actix-http/src/extensions.rs

@@ -6,6 +6,8 @@ use fxhash::FxHashMap;
 #[derive(Default)]
 /// A type map of request extensions.
 pub struct Extensions {
+    /// Use FxHasher with a std HashMap with for faster
+    /// lookups on the small `TypeId` (u64 equivalent) keys.
     map: FxHashMap<TypeId, Box<dyn Any>>,
 }
 

actix-http/src/header/common/range.rs

@@ -183,13 +183,13 @@ impl fmt::Display for Range {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match *self {
             Range::Bytes(ref ranges) => {
-                try!(write!(f, "bytes="));
+                write!(f, "bytes=")?;
 
                 for (i, range) in ranges.iter().enumerate() {
                     if i != 0 {
-                        try!(f.write_str(","));
+                        f.write_str(",")?;
                     }
-                    try!(Display::fmt(range, f));
+                    Display::fmt(range, f)?;
                 }
                 Ok(())
             }

src/config.rs

@@ -123,6 +123,7 @@ impl AppService {
     }
 }
 
+/// Application connection config
 #[derive(Clone)]
 pub struct AppConfig(Rc<AppConfigInner>);