fix features

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "byte-unit"
-version = "4.0.16"
+version = "4.0.17"
 authors = ["Magic Len <len@magiclen.org>"]
 edition = "2021"
 repository = "https://github.com/magiclen/byte-unit"
@@ -15,11 +15,11 @@ include = ["src/**/*", "Cargo.toml", "README.md", "LICENSE"]
 [dependencies]
 utf8-width = "0.1"
 
-serde = { version = "1", default-features = false, optional = true }
+serde_dep = { package = "serde", version = "1", default-features = false, features = ["alloc"], optional = true }
 
 [features]
 default = ["std", "u128"]
-serde = ["alloc"]
-std = ["serde/std", "alloc"]
+serde = ["alloc", "serde_dep"]
+std = ["serde_dep/std", "alloc"]
 alloc = []
 u128 = []

src/adjusted_byte.rs

@@ -2,7 +2,7 @@ use core::cmp::Ordering;
 
 use core::fmt::{self, Display, Formatter};
 
-#[cfg(any(feature = "serde", feature = "alloc"))]
+#[cfg(feature = "alloc")]
 use alloc::string::String;
 
 use crate::{get_bytes, Byte, ByteUnit};

src/lib.rs

@@ -156,7 +156,7 @@ extern crate alloc;
 
 #[cfg(feature = "serde")]
 #[macro_use]
-extern crate serde;
+extern crate serde_dep as serde;
 
 #[cfg(feature = "u128")]
 #[macro_use]