gnu: Add rust-git2-0.11.

* gnu/packages/crates-io.scm (rust-git2-0.11): New variable.
(rust-git2-0.9): Inherit from rust-git2-0.11.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu/packages/crates-io.scm

@@ -3827,8 +3827,48 @@ retrieving random data from system source.")
 DWARF debugging format.")
     (license (list license:asl2.0 license:expat))))
 
+(define-public rust-git2-0.11
+  (package
+    (name "rust-git2")
+    (version "0.11.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "git2" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1i0fgsr91r97hsjbgqnymkcyiyg0057m7m04116k3vmyqpvrwlbp"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:skip-build? #t
+       #:cargo-inputs
+       (("rust-bitflags" ,rust-bitflags-1)
+        ("rust-libc" ,rust-libc-0.2)
+        ("rust-libgit2-sys" ,rust-libgit2-sys-0.10)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-openssl-probe" ,rust-openssl-probe-0.1)
+        ("rust-openssl-sys" ,rust-openssl-sys-0.9)
+        ("rust-url" ,rust-url-2.1))
+       #:cargo-development-inputs
+       (("rust-docopt" ,rust-docopt-1.1)
+        ("rust-serde" ,rust-serde-1.0)
+        ("rust-serde-derive" ,rust-serde-derive-1.0)
+        ("rust-tempfile" ,rust-tempfile-3.1)
+        ("rust-thread-id" ,rust-thread-id-3.3)
+        ("rust-time" ,rust-time-0.1))))
+    (home-page "https://github.com/rust-lang/git2-rs")
+    (synopsis "Rust bindings to libgit2")
+    (description
+     "Bindings to libgit2 for interoperating with git repositories.
+This library is both threadsafe and memory safe and allows both
+reading and writing git repositories.")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-git2-0.9
   (package
+    (inherit rust-git2-0.11)
     (name "rust-git2")
     (version "0.9.1")
     (source
@@ -3840,7 +3880,6 @@ DWARF debugging format.")
        (sha256
         (base32
          "0cayf5w7wkvclvs8brbi7lyfxbdklwls9s49mpf2brl655yjwjwj"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:skip-build? #t
        #:cargo-inputs
@@ -3857,14 +3896,7 @@ DWARF debugging format.")
         ("rust-serde-derive" ,rust-serde-derive-1.0)
         ("rust-tempdir" ,rust-tempdir-0.3)
         ("rust-thread-id" ,rust-thread-id-3.3)
-        ("rust-time" ,rust-time-0.1))))
+        ("rust-time" ,rust-time-0.1))))))
-    (home-page "https://github.com/rust-lang/git2-rs")
-    (synopsis "Rust bindings to libgit2")
-    (description
-     "Bindings to libgit2 for interoperating with git repositories.
-This library is both threadsafe and memory safe and allows both
-reading and writing git repositories.")
-    (license (list license:asl2.0 license:expat))))
 
 (define-public rust-glob-0.3
   (package