gnu: rust-unrar: Move to (gnu packages crates-compression).

* gnu/packages/crates-io.scm (rust-unrar-0.5, rust-unrar-sys-0.5): Move
from here ...
* gnu/packages/crates-compression.scm: ... to here.

Change-Id: I4f02333203fbfe654f1b578eedaab1b8ac329dfa

gnu/packages/crates-compression.scm

@@ -1103,6 +1103,52 @@ known as zlib).")
      "This package provides a 7z decompressor/compressor written in pure rust.")
     (license license:asl2.0)))
 
+(define-public rust-unrar-0.5
+  (package
+    (name "rust-unrar")
+    (version "0.5.6")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "unrar" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0a8cd2l2hgmc7h5vjkvsl71vas5l7xqjwmx4kh8z48m26mvnm7f9"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs (("rust-bitflags" ,rust-bitflags-1)
+                       ("rust-regex" ,rust-regex-1)
+                       ("rust-unrar-sys" ,rust-unrar-sys-0.5)
+                       ("rust-widestring" ,rust-widestring-1))
+       #:cargo-development-inputs (("rust-tempfile" ,rust-tempfile-3))))
+    (home-page "https://github.com/muja/unrar.rs")
+    (synopsis "List and extract RAR archives")
+    (description
+     "This package provides functionality to list and extract RAR archives.")
+    (license (list license:expat license:asl2.0))))
+
+(define-public rust-unrar-sys-0.5
+  (package
+    (name "rust-unrar-sys")
+    (version "0.5.6")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "unrar_sys" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "1npkjbqx77rsls2f2nhi6x83ass4cw9d27xl647gmzvr6h82b0rz"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs (("rust-cc" ,rust-cc-1)
+                       ("rust-libc" ,rust-libc-0.2)
+                       ("rust-winapi" ,rust-winapi-0.3))))
+    (home-page "https://github.com/muja/unrar.rs")
+    (synopsis "FFI bindings to unrar")
+    (description
+     "This package provides FFI bindings to unrar (with minimal abstractions).")
+    (license license:expat)))
+
 (define-public rust-zip-2
   (package
     (name "rust-zip")