gnu: Add rust-ctr-0.8.

* gnu/packages/crates-io.scm (rust-ctr-0.8): New variable.
(rust-ctr-0.6): Inherit from above.

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

gnu/packages/crates-io.scm

@@ -13708,31 +13708,46 @@ use with sct crate.")
      "This package provides an @code{__attribute__((constructor))} for Rust.")
     (license (list license:asl2.0 license:expat))))
 
-(define-public rust-ctr-0.6
+(define-public rust-ctr-0.8
   (package
     (name "rust-ctr")
-    (version "0.6.0")
+    (version "0.8.0")
     (source
-      (origin
-        (method url-fetch)
-        (uri (crate-uri "ctr" version))
-        (file-name
-          (string-append name "-" version ".tar.gz"))
-        (sha256
-          (base32 "0zvyf13675hrlc37myj97k5ng7m1mj3d9p4ic4yvyhvl9zak0jpv"))))
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "ctr" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "1sk1aykwhkny92cnvl6s75dx3fyvfzw5xkd6xz3y7w5anhgvk6q4"))))
     (build-system cargo-build-system)
     (arguments
-      `(#:skip-build? #t
-        #:cargo-inputs
-        (("rust-cipher" ,rust-cipher-0.2))))
+     `(#:skip-build? #t
+       #:cargo-inputs (("rust-cipher" ,rust-cipher-0.3))))
     (home-page "https://docs.rs/ctr/")
     (synopsis "CTR block mode of operation")
     (description "This package provides a generic implementations of CTR mode
-for block ciphers.
-
-Mode functionality is accessed using traits from re-exported cipher crate.")
+for block ciphers. Mode functionality is accessed using traits from
+re-exported cipher crate.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-ctr-0.6
+  (package
+    (inherit rust-ctr-0.8)
+    (name "rust-ctr")
+    (version "0.6.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "ctr" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0zvyf13675hrlc37myj97k5ng7m1mj3d9p4ic4yvyhvl9zak0jpv"))))
+    (arguments
+     `(#:skip-build? #t
+       #:cargo-inputs (("rust-cipher" ,rust-cipher-0.2))))))
+
 (define-public rust-ctrlc-3
   (package
     (name "rust-ctrlc")