travis: update RUSTFMT to use rust-1.30 instead of 1.29

diff --git a/.travis.yml b/.travis.yml
index da26702751d48efa58b2d5792594e9b9bfefec56..61059371b394e8dada5b7610201a83b392af014f 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ rust:
   - nightly
 matrix:
   include:
-    - rust: 1.29.0 # lock down for consistent rustfmt behavior
+    - rust: 1.30.0 # lock down for consistent rustfmt behavior
       env: RUSTFMT
       install:
         - rustup component add rustfmt-preview