Switch serde dependency to serde_core

Author: dtolnay

Cargo.toml

@@ -16,7 +16,7 @@ indexmap = { version = "2.2.3", optional = true }
 itoa = "1.0"
 memchr = { version = "2", default-features = false }
 ryu = "1.0"
-serde = { version = "1.0.194", default-features = false }
+serde_core = { version = "1.0.220", default-features = false }
 
 [dev-dependencies]
 automod = "1.0.11"
@@ -48,12 +48,12 @@ features = ["float_roundtrip", "raw_value", "unbounded_depth"]
 [features]
 default = ["std"]
 
-std = ["memchr/std", "serde/std"]
+std = ["memchr/std", "serde_core/std"]
 
 # Provide integration for heap-allocated collections without depending on the
 # rest of the Rust standard library.
 # NOTE: Disabling both `std` *and* `alloc` features is not supported yet.
-alloc = ["serde/alloc"]
+alloc = ["serde_core/alloc"]
 
 # Make serde_json::Map use a representation which maintains insertion order.
 # This allows data to be read into a Value and written back to a JSON string

src/lib.rs

@@ -378,6 +378,8 @@ extern crate alloc;
 #[cfg(feature = "std")]
 extern crate std;
 
+extern crate serde_core as serde;
+
 // Not public API. Used from macro-generated code.
 #[doc(hidden)]
 pub mod __private {