gnu: Add rust-core-affinity-0.8.

* gnu/packages/crates-io.scm (rust-core-affinity-0.8): New variable.
(rust-core-affinity-0.5): Inherit from rust-core-affinity-0.8.

Change-Id: I75c87bca13f701291ea84945f4e8bcb0d0ee2cb8

gnu/packages/crates-io.scm

@@ -14622,8 +14622,30 @@ in @code{no_std}.  Alloc support is optional.")
        (("rust-env-logger" ,rust-env-logger-0.7)
         ("rust-pretty-assertions" ,rust-pretty-assertions-0.6))))))
 
+(define-public rust-core-affinity-0.8
+  (package
+    (name "rust-core-affinity")
+    (version "0.8.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "core_affinity" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0113rfzyvjpl1camxnrf92pn9vakhn9zqvgir0wgrqawcgsr4a32"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs (("rust-libc" ,rust-libc-0.2)
+                       ("rust-num-cpus" ,rust-num-cpus-1)
+                       ("rust-winapi" ,rust-winapi-0.3))))
+    (home-page "https://github.com/Elzair/core_affinity_rs")
+    (synopsis "Manage CPU affinities")
+    (description "This package manages CPU affinities.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-core-affinity-0.5
   (package
+    (inherit rust-core-affinity-0.8)
     (name "rust-core-affinity")
     (version "0.5.10")
     (source
@@ -14633,17 +14655,12 @@ in @code{no_std}.  Alloc support is optional.")
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32 "07qpwyxps4gp3gci2p6c5h4cmcql7551bp91qgbv0ky3bh8h72kz"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
        (("rust-kernel32-sys" ,rust-kernel32-sys-0.2)
         ("rust-libc" ,rust-libc-0.2)
         ("rust-num-cpus" ,rust-num-cpus-1)
-        ("rust-winapi" ,rust-winapi-0.2))))
+        ("rust-winapi" ,rust-winapi-0.2))))))
-    (home-page "https://github.com/Elzair/core_affinity_rs")
-    (synopsis "Manage CPU affinities")
-    (description "This package manages CPU affinities.")
-    (license (list license:expat license:asl2.0))))
 
 (define-public rust-core-arch-0.1
   (package