chore(travis): use stable instead of beta

Byron · Byron · commit 8db67f5874b0 · 2015-06-23T10:54:43.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,6 @@
 language: rust
 rust:
-- beta
+- stable
 before_script:
 - pip install 'travis-cargo<0.2' --user && export PATH=$HOME/.local/bin:$PATH
 script:
