gnu: Add rust-radium-0.7.

* gnu/packages/crates-io.scm (rust-radium-0.7): New variable.

gnu/packages/crates-io.scm

@@ -47260,6 +47260,29 @@ data.")
     (description "This package provides a generic connection pool.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-radium-0.7
+  (package
+    (name "rust-radium")
+    (version "0.7.0")
+    (source (origin
+              (method url-fetch)
+              (uri (crate-uri "radium" version))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "02cxfi3ky3c4yhyqx9axqwhyaca804ws46nn4gc1imbk94nzycyw"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-development-inputs
+       (("rust-static-assertions" ,rust-static-assertions-1))))
+    (home-page "https://ferrilab.github.io/ferrilab")
+    (synopsis "Portable interfaces for maybe-atomic types")
+    (description
+     "@code{radium} provides abstractions and graceful degradation for
+behavior that must be shared-mutable, but merely may use atomic instructions
+to do so.")
+    (license license:expat)))
+
 (define-public rust-radium-0.6
   (package
     (name "rust-radium")