gnu: Add rust-flatbuffers-0.8.

* gnu/packages/crates-io.scm (rust-flatbuffers-0.8): New variable.

gnu/packages/crates-io.scm

@@ -15678,6 +15678,30 @@ cross platform API.")
      "A procedural macro to insert @code{flame::start_guard(_)} calls.")
     (license license:asl2.0)))
 
+(define-public rust-flatbuffers-0.8
+  (package
+    (name "rust-flatbuffers")
+    (version "0.8.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "flatbuffers" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0sc0ngk9xim7xgqydx36xz4a1sqxq2fv7fmqn6z76vbx5cs05if3"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:skip-build? #t
+       #:cargo-inputs
+       (("rust-bitflags" ,rust-bitflags-1)
+        ("rust-smallvec" ,rust-smallvec-1)
+        ("rust-thiserror" ,rust-thiserror-1))))
+    (home-page "https://google.github.io/flatbuffers/")
+    (synopsis "FlatBuffers Rust serialization library")
+    (description
+     "This crates provides FlatBuffers runtime serialization library.")
+    (license license:asl2.0)))
+
 (define-public rust-flate2-1
   (package
     (name "rust-flate2")