gnu: Add rust-bare-metal-0.2.

* gnu/packages/crates-io.scm (rust-bare-metal-0.2): New variable.

gnu/packages/crates-io.scm

@@ -4681,6 +4681,28 @@ trace (backtrace) at runtime in a Rust program.")
     (license (list license:asl2.0
                    license:expat))))
 
+(define-public rust-bare-metal-0.2
+  (package
+    (name "rust-bare-metal")
+    (version "0.2.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "bare-metal" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "1cy5pbb92fznnri72y6drfpjxj4qdmd62f0rrlgy70dxlppn9ssx"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:skip-build? #t
+       #:cargo-inputs
+       (("rust-rustc-version" ,rust-rustc-version-0.2))))
+    (home-page "https://github.com/rust-embedded/bare-metal")
+    (synopsis "Abstractions common to bare metal systems")
+    (description "This package provides abstractions common to bare metal
+systems.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-barrel-0.6
   (package
     (name "rust-barrel")