gnu: Add rust-option-set-0.2.

* gnu/packages/crates-io.scm (rust-option-set-0.2): New variable.
(rust-option-set-0.1): Inherit from rust-option-set-0.2.

gnu/packages/crates-io.scm

@@ -46445,8 +46445,35 @@ system for OpenSSL.")
     (description "Extends `Option` with additional operations")
     (license license:mpl2.0)))
 
+(define-public rust-option-set-0.2
+  (package
+    (name "rust-option-set")
+    (version "0.2.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "option-set" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0i6s3bmnrw44nffqbbcaiq7fyhz7j881lcgspb57jxsi752m11k0"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-heck" ,rust-heck-0.4)
+        ("rust-serde" ,rust-serde-1))
+       #:cargo-development-inputs
+       (("rust-bitflags" ,rust-bitflags-2)
+        ("rust-serde" ,rust-serde-1)
+        ("rust-serde-json" ,rust-serde-json-1)
+        ("rust-serde-yaml" ,rust-serde-yaml-0.9))))
+    (home-page "https://github.com/H2CO3/option_set.git")
+    (synopsis "Bitflags on steroids")
+    (description "This package provides an extended version of rust bitflags.")
+    (license license:expat)))
+
 (define-public rust-option-set-0.1
   (package
+    (inherit rust-option-set-0.2)
     (name "rust-option-set")
     (version "0.1.4")
     (source (origin
@@ -46455,7 +46482,6 @@ system for OpenSSL.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32 "16wsxh2qmjb2bf7mcq7dhlpzwkslzgjpg3nwzx97ia6gpnb2sfy8"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
        (("rust-heck" ,rust-heck-0.3)
@@ -46464,11 +46490,7 @@ system for OpenSSL.")
        (("rust-bitflags" ,rust-bitflags-1)
         ("rust-serde" ,rust-serde-1)
         ("rust-serde-json" ,rust-serde-json-1)
-        ("rust-serde-yaml" ,rust-serde-yaml-0.8))))
-    (home-page "https://github.com/H2CO3/option_set.git")
-    (synopsis "Bitflags on steroids")
-    (description "This package provides an extended version of rust bitflags.")
-    (license license:expat)))
+        ("rust-serde-yaml" ,rust-serde-yaml-0.8))))))
 
 (define-public rust-orbclient-0.3
   (package