gnu: Add rust-napi-0.5.

* gnu/packages/crates-io.scm (rust-napi-0.5): New variable.

gnu/packages/crates-io.scm

@@ -15363,6 +15363,35 @@ statically-sized or dynamically-sized matrices.")
 IO of Windows's named pipes.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-napi-0.5
+  (package
+    (name "rust-napi")
+    (version "0.5.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "napi" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0mp0di7zv1r9gn3r3pmqnyy6q94akd9d6bl1p7m76nm9hgj9rw56"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-encoding-rs" ,rust-encoding-rs-0.8)
+        ("rust-futures" ,rust-futures-0.3)
+        ("rust-napi-sys" ,rust-napi-sys-0.4)
+        ("rust-once-cell" ,rust-once-cell-1)
+        ("rust-serde" ,rust-serde-1)
+        ("rust-serde-json" ,rust-serde-json-1)
+        ("rust-tokio" ,rust-tokio-0.2))
+       #:cargo-development-inputs
+       (("rust-napi-build" ,rust-napi-build-0.2))))
+    (home-page "https://github.com/napi-rs/napi-rs")
+    (synopsis "N-API bindings")
+    (description "This package provides N-API bindings.")
+    (license license:expat)))
+
 (define-public rust-napi-build-0.2
   (package
     (name "rust-napi-build")