diff --git a/.travis.yml b/.travis.yml
index 323197fa..8c4a32e8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,11 @@
 language: rust
 rust:
+  - nightly
   - beta
+  - stable
+matrix:
+  allow_failures:
+      - rust: nightly
 script:
 - RUST_BACKTRACE=1 CARGO_INCREMENTAL=0 cargo test --all
 - RUST_BACKTRACE=1 CARGO_INCREMENTAL=0 cargo test --tests --all