gnu: Add rust-pbkdf2-0.12.

* gnu/packages/crates-io.scm (rust-pbkdf2-0.12): New variable.
(rust-pbkdf2-0.11): Inherit from rust-pbkdf2-0.12.

gnu/packages/crates-io.scm

@@ -43010,8 +43010,43 @@ relative path from a provided base directory path to the provided
 path.")
     (license (list license:asl2.0 license:expat))))
 
+(define-public rust-pbkdf2-0.12
+  (package
+    (name "rust-pbkdf2")
+    (version "0.12.1")
+    (source (origin
+              (method url-fetch)
+              (uri (crate-uri "pbkdf2" version))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0cbcfkb9qh5czbm88gw3aii4y5m84wig6s5d7fzrhxb0d1d0pjph"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-digest" ,rust-digest-0.10)
+        ("rust-hmac" ,rust-hmac-0.12)
+        ("rust-password-hash" ,rust-password-hash-0.5)
+        ("rust-rayon" ,rust-rayon-1)
+        ("rust-sha1" ,rust-sha1-0.10)
+        ("rust-sha2" ,rust-sha2-0.10))
+       #:cargo-development-inputs
+       (("rust-hex-literal" ,rust-hex-literal-0.3)
+        ("rust-hmac" ,rust-hmac-0.12)
+        ("rust-sha1" ,rust-sha1-0.10)
+        ("rust-sha2" ,rust-sha2-0.10)
+        ("rust-streebog" ,rust-streebog-0.10))))
+    (home-page
+     "https://github.com/RustCrypto/password-hashes/tree/master/pbkdf2")
+    (synopsis "Generic implementation of PBKDF2")
+    (description "This package contains a collection of password hashing
+algorithms, otherwise known as password-based key derivation functions, written
+in pure Rust.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-pbkdf2-0.11
   (package
+    (inherit rust-pbkdf2-0.12)
     (name "rust-pbkdf2")
     (version "0.11.0")
     (source
@@ -43021,7 +43056,6 @@ path.")
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32 "05q9wqjvfrs4dvw03yn3bvcs4zghz0a7ycfa53pz2k2fqhp6k843"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
        (("rust-digest" ,rust-digest-0.10)
@@ -43036,12 +43070,7 @@ path.")
         ("rust-sha-1" ,rust-sha-1-0.10)
         ("rust-sha2" ,rust-sha2-0.10)
         ("rust-streebog" ,rust-streebog-0.10))))
-    (home-page "https://github.com/RustCrypto/password-hashing")
-    (synopsis "Generic implementation of PBKDF2")
-    (description "This package contains a collection of password hashing
-algorithms, otherwise known as password-based key derivation functions, written
-in pure Rust.")
-    (license (list license:expat license:asl2.0))))
+    (home-page "https://github.com/RustCrypto/password-hashing")))
 
 (define-public rust-pbkdf2-0.10
   (package