gnu: Add rust-faster-hex-0.8.

* gnu/packages/crates-io.scm (rust-faster-hex-0.8): New variable.

Change-Id: I03865bdfad13f371c55dd4604f25e70e52e3dcaa

gnu/packages/crates-io.scm

@@ -25366,6 +25366,34 @@ is defined in the HTML specification.")
 floats.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-faster-hex-0.8
+  (package
+    (name "rust-faster-hex")
+    (version "0.8.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "faster-hex" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "12ikld53h5d682rn1j85d77n90pq4vy5mncwdaqhm0hgjgxpp7r3"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-serde" ,rust-serde-1))
+       #:cargo-development-inputs
+       (("rust-bytes" ,rust-bytes-1)
+        ("rust-criterion" ,rust-criterion-0.3)
+        ("rust-hex" ,rust-hex-0.3)
+        ("rust-proptest" ,rust-proptest-1)
+        ("rust-rustc-hex" ,rust-rustc-hex-1)
+        ("rust-serde" ,rust-serde-1)
+        ("rust-serde-json" ,rust-serde-json-1))))
+    (home-page "https://github.com/nervosnetwork/faster-hex")
+    (synopsis "Fast hex encoding")
+    (description "Fast hex encoding.")
+    (license license:expat)))
+
 (define-public rust-fastq-0.6
   (package
     (name "rust-fastq")