gnu: Add rust-typed-arena-1.4.

* gnu/packages/crates-io.scm (rust-typed-arena-1.4): New variable.

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

gnu/packages/crates-io.scm

@@ -6929,6 +6929,27 @@ serializing Rust structures.")
     (properties '((hidden? . #t)))
     (license license:expat)))
 
+(define-public rust-typed-arena-1.4
+  (package
+    (name "rust-typed-arena")
+    (version "1.4.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "typed-arena" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1i8yczhwcy0nnrxqck1lql3i7hvg95l0vw0dbgfb92zkms96mh66"))))
+    (build-system cargo-build-system)
+    (arguments `(#:skip-build? #t))
+    (home-page "https://github.com/SimonSapin/rust-typed-arena")
+    (synopsis "The arena allocator")
+    (description
+     "The arena, a fast but limited type of allocator.")
+    (license license:expat)))
+
 (define-public rust-typemap-0.3
   (package
     (name "rust-typemap")