More formatting of doc tests and example code

serde/src/de/ignored_any.rs

@@ -11,12 +11,11 @@ use de::{
 /// gets deserialized.
 ///
 /// ```edition2021
-/// use std::fmt;
-/// use std::marker::PhantomData;
-///
 /// use serde::de::{
 ///     self, Deserialize, DeserializeSeed, Deserializer, IgnoredAny, SeqAccess, Visitor,
 /// };
+/// use std::fmt;
+/// use std::marker::PhantomData;
 ///
 /// /// A seed that can be used to deserialize only the `n`th element of a sequence
 /// /// while efficiently discarding elements of any type before or after index `n`.

serde/src/de/mod.rs

@@ -433,9 +433,8 @@ impl<'a> fmt::Display for Unexpected<'a> {
 /// (`&self`) is an implementation of this trait.
 ///
 /// ```edition2021
-/// # use std::fmt;
-/// #
 /// # use serde::de::{self, Unexpected, Visitor};
+/// # use std::fmt;
 /// #
 /// # struct Example;
 /// #
@@ -667,11 +666,10 @@ impl<T> DeserializeOwned for T where T: for<'de> Deserialize<'de> {}
 /// trait.
 ///
 /// ```edition2021
+/// use serde::de::{Deserialize, DeserializeSeed, Deserializer, SeqAccess, Visitor};
 /// use std::fmt;
 /// use std::marker::PhantomData;
 ///
-/// use serde::de::{Deserialize, DeserializeSeed, Deserializer, SeqAccess, Visitor};
-///
 /// // A DeserializeSeed implementation that uses stateful deserialization to
 /// // append array elements onto the end of an existing vector. The preexisting
 /// // state ("seed") in this case is the Vec<T>. The `deserialize` method of
@@ -1253,9 +1251,8 @@ pub trait Deserializer<'de>: Sized {
 /// # Example
 ///
 /// ```edition2021
-/// # use std::fmt;
-/// #
 /// # use serde::de::{self, Unexpected, Visitor};
+/// # use std::fmt;
 /// #
 /// /// A visitor that deserializes a long string - a string containing at least
 /// /// some minimum number of bytes.

serde/src/macros.rs

@@ -79,10 +79,9 @@
 /// specified explicitly if necessary.
 ///
 /// ```edition2021
-/// # use std::marker::PhantomData;
-/// #
 /// # use serde::forward_to_deserialize_any;
 /// # use serde::de::{value, Deserializer, Visitor};
+/// # use std::marker::PhantomData;
 /// #
 /// # struct MyDeserializer<V>(PhantomData<V>);
 /// #