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diff --git a/Cargo.toml b/Cargo.toml
index a63f6a1..0a2b256 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -84,4 +84,4 @@ version = "1"
version = "1"
[target."cfg(any())".dependencies.serde_derive]
-version = "=1.0.226"
+version = "1"
diff --git a/src/de/mod.rs b/src/de/mod.rs
index b036f47..78590d5 100644
--- a/src/de/mod.rs
+++ b/src/de/mod.rs
@@ -2295,7 +2295,7 @@ pub trait VariantAccess<'de>: Sized {
///
/// # Example
///
-/// ```edition2021
+/// ```ignore
/// use serde::de::{value, Deserialize, IntoDeserializer};
/// use serde_derive::Deserialize;
/// use std::str::FromStr;
diff --git a/src/de/value.rs b/src/de/value.rs
index 3d5475d..a60801f 100644
--- a/src/de/value.rs
+++ b/src/de/value.rs
@@ -1,7 +1,7 @@
//! Building blocks for deserializing basic values using the `IntoDeserializer`
//! trait.
//!
-//! ```edition2021
+//! ```ignore
//! use serde::de::{value, Deserialize, IntoDeserializer};
//! use serde_derive::Deserialize;
//! use std::str::FromStr;
diff --git a/src/ser/fmt.rs b/src/ser/fmt.rs
index 4b1549f..af98da9 100644
--- a/src/ser/fmt.rs
+++ b/src/ser/fmt.rs
@@ -17,7 +17,7 @@ macro_rules! fmt_primitives {
};
}
-/// ```edition2021
+/// ```ignore
/// use serde::ser::Serialize;
/// use serde_derive::Serialize;
/// use std::fmt::{self, Display};
diff --git a/src/ser/impls.rs b/src/ser/impls.rs
index a7a175d..3a21b93 100644
--- a/src/ser/impls.rs
+++ b/src/ser/impls.rs
@@ -788,6 +788,8 @@ fn format_u8(mut n: u8, out: &mut [u8]) -> usize {
#[cfg(any(feature = "std", not(no_core_net)))]
#[test]
fn test_format_u8() {
+ extern crate alloc;
+ use alloc::string::ToString;
let mut i = 0u8;
loop {
diff --git a/src/ser/impossible.rs b/src/ser/impossible.rs
index fe69ae2..0431f4c 100644
--- a/src/ser/impossible.rs
+++ b/src/ser/impossible.rs
@@ -15,7 +15,7 @@ use crate::ser::{
/// [`SerializeTuple`], [`SerializeTupleStruct`], [`SerializeTupleVariant`],
/// [`SerializeMap`], [`SerializeStruct`], and [`SerializeStructVariant`].
///
-/// ```edition2021
+/// ```ignore
/// # use serde::ser::{Serializer, Impossible};
/// # use serde_core::__private::doc::Error;
/// #
diff --git a/src/ser/mod.rs b/src/ser/mod.rs
index 62e59d9..25e456e 100644
--- a/src/ser/mod.rs
+++ b/src/ser/mod.rs
@@ -410,7 +410,7 @@ pub trait Serializer: Sized {
/// Serialize a `bool` value.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -432,7 +432,7 @@ pub trait Serializer: Sized {
/// reasonable implementation would be to cast the value to `i64` and
/// forward to `serialize_i64`.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -454,7 +454,7 @@ pub trait Serializer: Sized {
/// reasonable implementation would be to cast the value to `i64` and
/// forward to `serialize_i64`.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -476,7 +476,7 @@ pub trait Serializer: Sized {
/// reasonable implementation would be to cast the value to `i64` and
/// forward to `serialize_i64`.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -494,7 +494,7 @@ pub trait Serializer: Sized {
/// Serialize an `i64` value.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -512,7 +512,7 @@ pub trait Serializer: Sized {
/// Serialize an `i128` value.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -539,7 +539,7 @@ pub trait Serializer: Sized {
/// reasonable implementation would be to cast the value to `u64` and
/// forward to `serialize_u64`.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -561,7 +561,7 @@ pub trait Serializer: Sized {
/// reasonable implementation would be to cast the value to `u64` and
/// forward to `serialize_u64`.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -583,7 +583,7 @@ pub trait Serializer: Sized {
/// reasonable implementation would be to cast the value to `u64` and
/// forward to `serialize_u64`.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -601,7 +601,7 @@ pub trait Serializer: Sized {
/// Serialize a `u64` value.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -619,7 +619,7 @@ pub trait Serializer: Sized {
/// Serialize a `u128` value.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -646,7 +646,7 @@ pub trait Serializer: Sized {
/// reasonable implementation would be to cast the value to `f64` and
/// forward to `serialize_f64`.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -664,7 +664,7 @@ pub trait Serializer: Sized {
/// Serialize an `f64` value.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -685,7 +685,7 @@ pub trait Serializer: Sized {
/// If the format does not support characters, it is reasonable to serialize
/// it as a single element `str` or a `u32`.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -703,7 +703,7 @@ pub trait Serializer: Sized {
/// Serialize a `&str`.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
@@ -727,7 +727,7 @@ pub trait Serializer: Sized {
/// `serialize_seq`. If forwarded, the implementation looks usually just
/// like this:
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::ser::{Serializer, SerializeSeq};
/// # use serde_core::__private::doc::Error;
/// #
@@ -824,7 +824,7 @@ pub trait Serializer: Sized {
/// Serialize a `()` value.
///
- /// ```edition2021
+ /// ```ignore
/// # use serde::Serializer;
/// #
/// # serde_core::__private_serialize!();
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