doc(readme): Update readme to compile with latest serde

README.md

@@ -100,7 +100,7 @@ serde_json = "*"
 
 `src/main.rs`:
 
-```rust
+```rust,ignore
 extern crate serde;
 extern crate serde_json;
 
@@ -109,7 +109,7 @@ include!(concat!(env!("OUT_DIR"), "/main.rs"));
 
 `src/main.rs.in`:
 
-```rust
+```rust,ignore
 #[derive(Serialize, Deserialize, Debug)]
 struct Point {
     x: i32,
@@ -130,7 +130,7 @@ fn main() {
 
 `build.rs`
 
-```rust
+```rust,ignore
 extern crate syntex;
 extern crate serde_codegen;
 
@@ -189,7 +189,7 @@ serde_macros = { version = "*", optional = true }
 
 `build.rs`:
 
-```rust
+```rust,ignore
 #[cfg(not(feature = "serde_macros"))]
 mod inner {
     extern crate syntex;
@@ -223,7 +223,7 @@ fn main() {
 
 `src/main.rs`:
 
-```rust
+```rust,ignore
 #![cfg_attr(feature = "serde_macros", feature(custom_derive, plugin))]
 #![cfg_attr(feature = "serde_macros", plugin(serde_macros))]
 
@@ -248,7 +248,7 @@ Then to run with stable:
 
 Or with nightly:
 
-```rust
+```
 % cargo build --features nightly --no-default-features
 ...
 ```
@@ -272,7 +272,7 @@ The
 [Serializer](http://serde-rs.github.io/serde/serde/serde/ser/trait.Serializer.html)
 is threaded through the type:
 
-```rust
+```rust,ignore
 impl serde::Serialize for i32 {
     fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
         where S: serde::Serializer,
@@ -289,7 +289,7 @@ to the
 [Serializer](http://serde-rs.github.io/serde/serde/serde/ser/trait.Serializer.html)
 in order to walk through the type:
 
-```rust
+```rust,ignore
 impl<K, V> Serialize for BTreeMap<K, V>
     where K: Serialize + Ord,
           V: Serialize,
@@ -350,6 +350,7 @@ the fields:
 
 ```rust
 extern crate serde;
+extern crate serde_json;
 
 struct Point {
     x: i32,
@@ -391,6 +392,13 @@ impl<'a> serde::ser::MapVisitor for PointMapVisitor<'a> {
         }
     }
 }
+
+fn main() {
+    let point = Point { x: 1, y: 2 };
+    let serialized = serde_json::to_string(&point).unwrap();
+
+    println!("{}", serialized);
+}
 ```
 
 Deserialization without Macros
@@ -405,7 +413,7 @@ implementation. It passes a
 The [Visitor](http://serde-rs.github.io/serde/serde/serde/de/trait.Visitor.html)
 can create the `i32` from a variety of different types:
 
-```rust
+```rust,ignore
 impl Deserialize for i32 {
     fn deserialize<D>(deserializer: &mut D) -> Result<i32, D::Error>
         where D: serde::Deserializer,
@@ -442,13 +450,13 @@ which allows a
 [Deserialize](http://serde-rs.github.io/serde/serde/serde/de/trait.Deserialize.html)
 to generate an error for a few common error conditions. Here's how it could be used:
 
-```rust
+```rust,ignore
     ...
 
     fn visit_string<E>(&mut self, _: String) -> Result<i32, E>
         where E: Error,
     {
-        Err(serde::de::Error::syntax("expect a string"))
+        Err(serde::de::Error::custom("expect a string"))
     }
 
     ...
@@ -460,7 +468,7 @@ Maps follow a similar pattern as before, and use a
 to walk through the values generated by the 
 [Deserializer](http://serde-rs.github.io/serde/serde/serde/de/trait.Deserializer.html).
 
-```rust
+```rust,ignore
 impl<K, V> serde::Deserialize for BTreeMap<K, V>
     where K: serde::Deserialize + Eq + Ord,
           V: serde::Deserialize,
@@ -510,7 +518,6 @@ impl<K, V> serde::de::Visitor for BTreeMapVisitor<K, V>
         Ok(values)
     }
 }
-
 ```
 
 Deserializing structs goes a step further in order to support not allocating a
@@ -520,7 +527,9 @@ before, we need to generate:
 
 ```rust
 extern crate serde;
+extern crate serde_json;
 
+#[derive(Debug)]
 struct Point {
     x: i32,
     y: i32,
@@ -546,7 +555,7 @@ impl serde::Deserialize for PointField {
                 match value {
                     "x" => Ok(PointField::X),
                     "y" => Ok(PointField::Y),
-                    _ => Err(serde::de::Error::syntax("expected x or y")),
+                    _ => Err(serde::de::Error::custom("expected x or y")),
                 }
             }
         }
@@ -598,6 +607,15 @@ impl serde::de::Visitor for PointVisitor {
         Ok(Point{ x: x, y: y })
     }
 }
+
+
+fn main() {
+    let serialized = "{\"x\":1,\"y\":2}";
+
+    let deserialized: Point = serde_json::from_str(&serialized).unwrap();
+
+    println!("{:?}", deserialized);
+}
 ```
 
 Design Considerations and tradeoffs for Serializers and Deserializers
@@ -616,7 +634,7 @@ as either a `null`, or some other value. Serde `Serializer`s and
 `Deserializer`s can opt-in support for this. For serialization, this is pretty
 easy. Simply implement these methods:
 
-```rust
+```rust,ignore
 ...
 
     fn visit_none(&mut self) -> Result<(), Self::Error> {
@@ -636,7 +654,7 @@ next value in the serialized token stream. This following example is from
 where it checks to see if the next value is an `Option`, a `()`, or some other
 value:
 
-```rust
+```rust,ignore
 ...
 
     fn visit_option<V>(&mut self, mut visitor: V) -> Result<V::Value, Error>