gnu: Add rust-enum-to-u8-slice-derive-0.1.

* gnu/packages/crates-io.scm (rust-enum-to-u8-slice-derive-0.1): New variable.

gnu/packages/crates-io.scm

@@ -9423,6 +9423,29 @@ accessor functions on enums.")
         ("rust-quote" ,rust-quote-0.6)
         ("rust-syn" ,rust-syn-0.15))))))
 
+(define-public rust-enum-to-u8-slice-derive-0.1
+  (package
+    (name "rust-enum-to-u8-slice-derive")
+    (version "0.1.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "enum_to_u8_slice_derive" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0hvzi74pnh5a7f4klrk0dz45l0mgcy5l3zajjhjsxzws28js4yc4"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-quote" ,rust-quote-0.3)
+        ("rust-syn" ,rust-syn-0.11))))
+    (home-page "https://github.com/mesalock-linux/enum_to_u8_slice_derive")
+    (synopsis "Convert enum to u8 slice ref")
+    (description
+     "This package provides a simple fork of @code{enum_to_str_derive},
+convert enum to u8 slice ref.")
+    (license license:bsd-3)))
+
 (define-public rust-env-logger-0.7
   (package
     (name "rust-env-logger")