gnu: Add rust-serial-test@0.4.0.

* gnu/packages/crates-io.scm (rust-serial-test-0.4): New variable.

Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>

gnu/packages/crates-io.scm

@@ -23419,6 +23419,31 @@ functionality and without weak references.")
     (description "Serialising Rust tests")
     (license license:expat)))
 
+(define-public rust-serial-test-0.4
+  (package
+    (name "rust-serial-test")
+    (version "0.4.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "serial_test" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1mkz246ax07nar0bmh3m98kl27lacja98vywi9cjqbsb8g3zgxgy"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-lazy-static" ,rust-lazy-static-1)
+("rust-parking-lot" ,rust-parking-lot-0.10)
+("rust-serial-test-derive" ,rust-serial-test-derive-0.4))))
+    (home-page
+     "https://github.com/palfrey/serial_test/")
+    (synopsis "Serialising Rust tests")
+    (description "Serialising Rust tests")
+    (license license:expat)))
+
 (define-public rust-servo-fontconfig-0.4
   (package
     (name "rust-servo-fontconfig")