diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index cf20dd756a..e5119312dc 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -17109,8 +17109,37 @@ (define-public rust-parking-lot-core-0.4
         ("rust-winapi" ,rust-winapi-0.3)
         ("rust-rustc-version" ,rust-rustc-version-0.2))))))
 
+(define-public rust-partial-io-0.3
+  (package
+    (name "rust-partial-io")
+    (version "0.3.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "partial-io" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0b9a2bvqmaj2r4rkbshjsg8zzvp23b67qfvj2y6jwjckrn6zhb38"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-futures" ,rust-futures-0.1)
+        ("rust-quickcheck" ,rust-quickcheck-0.6)
+        ("rust-tokio-io" ,rust-tokio-io-0.1))
+       #:cargo-development-inputs
+       (("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-quickcheck" ,rust-quickcheck-0.6)
+        ("rust-tokio-core" ,rust-tokio-core-0.1))))
+    (home-page "https://github.com/facebookincubator/rust-partial-io")
+    (synopsis "Helpers to test partial, interrupted and would-block I/O operations")
+    (description "This package provides helpers to test partial, interrupted
+and would-block I/O operations.")
+    (license license:expat)))
+
 (define-public rust-partial-io-0.2
   (package
+    (inherit rust-partial-io-0.3)
     (name "rust-partial-io")
     (version "0.2.5")
     (source
@@ -17122,7 +17151,6 @@ (define-public rust-partial-io-0.2
        (sha256
         (base32
          "03iynvayh11a4mckhwflm5y1qmnkw5m3b20gzi1crpasndy3h8xx"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
        (("rust-futures" ,rust-futures-0.1)
@@ -17132,11 +17160,6 @@ (define-public rust-partial-io-0.2
        (("rust-lazy-static" ,rust-lazy-static-0.2)
         ("rust-quickcheck" ,rust-quickcheck-0.4)
         ("rust-tokio-core" ,rust-tokio-core-0.1))))
-    (home-page "https://github.com/facebookincubator/rust-partial-io")
-    (synopsis
-     "Helpers to test partial, interrupted and would-block I/O operations")
-    (description
-     "Helpers to test partial, interrupted and would-block I/O operations.")
     (license license:bsd-3)))
 
 (define-public rust-paste-0.1