Add Travis CI job for checking the minimum supported Rust version

rust-lang · Jul 25, 2019 · c4b5546 · c4b5546
1 parent 95dc4d4
commit c4b5546
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,7 @@
 language: rust
 matrix:
   include:
+    - rust: 1.28.0
     - rust: stable
     - rust: beta
     - rust: nightly