CI: add Rust 1.26.2 to test the last minor version

mssun · mssun · commit e90654052215 · 2018-07-13T20:32:05.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,6 @@
 language: rust
 rust:
+  - 1.26.2
   - stable
   - nightly
 env:

-Original file line number
+Diff line change
@@ @@ -1,5 +1,6 @@ @@
 language: rust
 rust:
 +  - 1.26.2
   - stable
   - nightly
 env: