From 07a7cd18849b2bc3602a0699f06f445ffb371315 Mon Sep 17 00:00:00 2001
From: Efraim Flashner <efraim@flashner.co.il>
Date: Wed, 28 Aug 2019 16:40:36 +0300
Subject: gnu: Add rust-tracing-core.

* gnu/packages/crates-io.scm (rust-tracing-core): New variable.
---
 gnu/packages/crates-io.scm | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'gnu')

diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 3a906af89a..2f9608750c 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -1604,6 +1604,29 @@ fixed set of worker threads.")
     (description "Mock a Tokio task")
     (license license:expat)))
 
+(define-public rust-tracing-core
+  (package
+    (name "rust-tracing-core")
+    (version "0.1.2")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "tracing-core" version))
+        (file-name (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "01fa73wzw2m5ybi3kkd52dgrw97mgc3i6inmhwys46ab28giwnxi"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-lazy-static" ,rust-lazy-static))))
+    (home-page "https://tokio.rs")
+    (synopsis "Core primitives for application-level tracing")
+    (description
+     "Core primitives for application-level tracing.")
+    (license (list license:asl2.0
+                   license:expat))))
+
 (define-public rust-typenum
   (package
     (name "rust-typenum")
-- 
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