Remove bincode dev-dependency (#2127)

`bincode` is unmaintained. See https://crates.io/crates/bincode/3.0.0

This adds `postcard` as an alternative for rustdocs

Author: tarcieri

Cargo.lock

@@ -19,13 +19,13 @@ rust-version = "1.85"
 base16ct = { version = "0.3", default-features = false }
 serde = { version = "1.0.184", default-features = false }
 
-# optional featuresw
+# optional features
 zeroize = { version = "1", optional = true, default-features = false }
 
 [dev-dependencies]
-bincode = "1"
 ciborium = "0.2"
 hex-literal = "1"
+postcard = { version = "1", features = ["use-std"] }
 proptest = "1"
 rmp-serde = "1"
 serde = { version = "1.0.184", default-features = false, features = ["derive"] }

serdect/Cargo.toml

@@ -48,20 +48,10 @@
 //!
 //! let data = SecretData([42; 32]);
 //!
-//! let serialized = bincode::serialize(&data).unwrap();
-//! // bincode, a binary serialization format is serialized into bytes.
-//! assert_eq!(
-//!     serialized.as_slice(),
-//!     [
-//!         // Array size.
-//!         32, 0, 0, 0, 0, 0, 0, 0,
-//!         // Actual data.
-//!         42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
-//!         42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
-//!     ]
-//! );
-//! # let deserialized: SecretData = bincode::deserialize(&serialized).unwrap();
-//! # assert_eq!(deserialized, data);
+//! // postcard: an embedded-friendly binary serialization format
+//! let serialized = postcard::to_stdvec(&data).unwrap();
+//! let deserialized: SecretData = postcard::from_bytes(&serialized).unwrap();
+//! assert_eq!(deserialized, data);
 //!
 //! let serialized = serde_json::to_string(&data).unwrap();
 //! // JSON, a human-readable serialization format, is serialized into lower-case HEX.
@@ -102,20 +92,10 @@
 //!
 //! let data = SecretData(vec![42; 32]);
 //!
-//! let serialized = bincode::serialize(&data).unwrap();
-//! // bincode, a binary serialization format is serialized into bytes.
-//! assert_eq!(
-//!     serialized.as_slice(),
-//!     [
-//!         // Slice size.
-//!         32, 0, 0, 0, 0, 0, 0, 0,
-//!         // Actual data.
-//!         42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
-//!         42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
-//!     ]
-//! );
-//! # let deserialized: SecretData = bincode::deserialize(&serialized).unwrap();
-//! # assert_eq!(deserialized, data);
+//! // postcard: an embedded-friendly binary serialization format
+//! let serialized = postcard::to_stdvec(&data).unwrap();
+//! let deserialized: SecretData = postcard::from_bytes(&serialized).unwrap();
+//! assert_eq!(deserialized, data);
 //!
 //! let serialized = serde_json::to_string(&data).unwrap();
 //! // JSON, a human-readable serialization format is serialized into lower-case HEX.