MAINT: Test in travis from Rust 1.20

bluss · bluss · commit b1976641f3d4 · 2018-11-25T10:44:23.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,7 +4,7 @@ env:
   - FEATURES='serde-1'
 matrix:
   include:
-    - rust: 1.13.0
+    - rust: 1.20.0
     - rust: stable
       env:
         - NODEFAULT=1
