gnu: Add rust-miow-0.6.

* gnu/packages/crates-io.scm (rust-miow-0.6): New variable.
(rust-miow-0.5): Inherit from rust-miow-0.6.

Change-Id: I1c31c3fe9f081f1d9da6dab4d13fe40733092f08

gnu/packages/crates-io.scm

@@ -41995,8 +41995,34 @@ possible over the OS abstractions.")
      "Unix domain socket bindings for mio.")
     (license (list license:asl2.0 license:expat))))
 
+(define-public rust-miow-0.6
+  (package
+    (name "rust-miow")
+    (version "0.6.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "miow" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0i307jyhxnhgzj148cdb9zq59rhlhr1b65g142g9z9r01d1pd7rm"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-windows-sys" ,rust-windows-sys-0.48))
+       #:cargo-development-inputs
+       (("rust-rand" ,rust-rand-0.8)
+        ("rust-socket2" ,rust-socket2-0.5))))
+    (home-page "https://github.com/yoshuawuyts/miow")
+    (synopsis "Rust I/O library for Windows")
+    (description
+     "This package provides a zero overhead I/O library for Windows, focusing on
+IOCP and Async I/O abstractions.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-miow-0.5
   (package
+    (inherit rust-miow-0.6)
     (name "rust-miow")
     (version "0.5.0")
     (source
@@ -42006,20 +42032,12 @@ possible over the OS abstractions.")
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
         (base32 "08qi8xm2zf8dqacdbnrp19aqk2xiwmw75n1mpq43rqsmysibrzsj"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
        (("rust-windows-sys" ,rust-windows-sys-0.42))
        #:cargo-development-inputs
        (("rust-rand" ,rust-rand-0.8)
-        ("rust-socket2" ,rust-socket2-0.4))))
-    (home-page "https://github.com/alexcrichton/miow")
-    (synopsis "Rust I/O library for Windows")
-    (description
-     "This package provides a zero overhead I/O library for Windows, focusing on
-IOCP and Async I/O abstractions.")
-    (license (list license:asl2.0
-                   license:expat))))
+        ("rust-socket2" ,rust-socket2-0.4))))))
 
 (define-public rust-miow-0.4
   (package