gnu: Add rust-scrypt-0.8.

* gnu/packages/crates-io.scm (rust-scrypt-0.8): New variable.
(rust-scrypt-0.3): Inherit from above.

Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>

gnu/packages/crates-io.scm

@@ -48093,8 +48093,36 @@ shareable by multiple crates in a build graph and erased by @code{cargo
 clean}.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-scrypt-0.8
+  (package
+    (name "rust-scrypt")
+    (version "0.8.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "scrypt" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "09fkz5sc7qx97dyi1nkv69z36diggd2c9mja33cxpsqicdy6sgg7"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:skip-build? #t
+       #:cargo-inputs
+       (("rust-hmac" ,rust-hmac-0.12)
+        ("rust-password-hash" ,rust-password-hash-0.3)
+        ("rust-pbkdf2" ,rust-pbkdf2-0.10)
+        ("rust-salsa20" ,rust-salsa20-0.9)
+        ("rust-sha2" ,rust-sha2-0.10))))
+    (home-page "https://github.com/RustCrypto/password-hashes")
+    (synopsis "Scrypt password-based key derivation function")
+    (description
+     "This packages provides a Scrypt password-based key derivation
+function.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-scrypt-0.3
   (package
+    (inherit rust-scrypt-0.8)
     (name "rust-scrypt")
     (version "0.3.0")
     (source
@@ -48106,7 +48134,6 @@ clean}.")
         (sha256
          (base32
           "1apicbvp7cgc1z2nl5l48g8h3kp7p592r4zbkx9vsri2ivnvgv43"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
        (("rust-base64" ,rust-base64-0.12)
@@ -48115,12 +48142,7 @@ clean}.")
         ("rust-rand" ,rust-rand-0.7)
         ("rust-rand-core" ,rust-rand-core-0.5)
         ("rust-sha2" ,rust-sha2-0.9)
-        ("rust-subtle" ,rust-subtle-2))))
+        ("rust-subtle" ,rust-subtle-2))))))
-    (home-page "https://github.com/RustCrypto/password-hashes")
-    (synopsis "Scrypt password-based key derivation function")
-    (description
-     "Scrypt password-based key derivation function.")
-    (license (list license:expat license:asl2.0))))
 
 (define-public rust-scrypt-0.2
   (package