16/58: gnu: Add rust-memmap2-0.2.

[guix-commits]

ngz pushed a commit to branch master
in repository guix.

commit 5e549fb8eded94ba04b958f5b8616e01a13091fe
Author: Zheng Junjie <873216071@qq.com>
AuthorDate: Sun Jun 13 17:57:53 2021 +0200

    gnu: Add rust-memmap2-0.2.
    
    * gnu/packages/crates-io.scm (rust-memmap2-0.2): New variable.
    
    Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>
---
 gnu/packages/crates-io.scm | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 5470190..1d9a885 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -24676,6 +24676,21 @@ file IO.")
     (description "This package provides a Rust API for memory-mapped file IO.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-memmap2-0.2
+  (package
+    (inherit rust-memmap2-0.3)
+    (name "rust-memmap2")
+    (version "0.2.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "memmap2" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1d26q3sh0z5dvwpilqqvq5bqi7vqfd2kc5gk3pdj7h65rnykwgkj"))))))
+
 (define-public rust-memmap2-0.1
   (package
     (inherit rust-memmap2-0.3)