gnu: Add rust-cachedir-0.1.

* gnu/packages/crates-io.scm (rust-cachedir-0.1): New variable.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu/packages/crates-io.scm

@@ -3324,6 +3324,32 @@ exposed as Reader/Writer streams.")
      "The ChaCha family of stream ciphers.")
     (license (list license:asl2.0 license:expat))))
 
+(define-public rust-cachedir-0.1
+  (package
+    (name "rust-cachedir")
+    (version "0.1.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "cachedir" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1j18j73fxrr82marcdrn86123vr9v5n0fgyjkf9mi9pzyk8hjrf0"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-tempfile" ,rust-tempfile-3))
+       ;; Tests require a mutable home directory and access to /var/tmp.
+       #:tests? #f))
+    (home-page "https://github.com/lilianmoraru/cachedir")
+    (synopsis "Interact with cache directories and @file{CACHEDIR.TAG} files")
+    (description
+     "This package provides a library to help interacting with cache
+directories and @code{CACHEDIR.TAG} files.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-calloop-0.4
   (package
     (name "rust-calloop")