Update rust code

wasm/Cargo.toml

@@ -11,35 +11,21 @@ publish = false
 [lib]
 crate-type = ["cdylib", "rlib"]
 
-[features]
-default = ["console_error_panic_hook"]
-
 [dependencies]
-wasm-bindgen = "0.2"
-serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0.91"
+wasm-bindgen = "0.2.89"
+serde = { version = "1.0.193", features = ["derive"] }
+serde_json = "1.0.108"
 lazy_static = "1.4.0"
-unicode-rs = "0.1.2"
 
 # The `console_error_panic_hook` crate provides better debugging of panics by
 # logging them with `console.error`. This is great for development, but requires
 # all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
 # code size when deploying.
-console_error_panic_hook = { version = "0.1.1", optional = true }
-
-# `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
-# compared to the default allocator's ~10K. It is slower than the default
-# allocator, however.
-#
-# Unfortunately, `wee_alloc` requires nightly Rust when targeting wasm for now.
-wee_alloc = { version = "0.4.2", optional = true }
-
-[dev-dependencies]
-wasm-bindgen-test = "0.3"
+console_error_panic_hook = { version = "0.1.7" }
 
 [build-dependencies]
-proc-macro2 = "1.0.50"
-quote = "1.0.23"
+proc-macro2 = "1.0.70"
+quote = "1.0.33"
 
 [profile.release]
 # Tell `rustc` to optimize for small code size.