Use travis-cargo

See https://github.com/huonw/travis-cargo

.travis.yml

@@ -1,16 +1,35 @@
 language: rust
 sudo: false
+
+addons:
+  apt:
+    packages:
+      - libcurl4-openssl-dev
+      - libelf-dev
+      - libdw-dev
+      - binutils-dev
+
 rust:
   - stable
   - beta
   - nightly
+
+before_script:
+  - |
+      pip install 'travis-cargo<0.2' --user &&
+      export PATH=$HOME/.local/bin:$PATH
+
 matrix:
   allow_failures:
     - rust: nightly
 services:
   - redis-server
 script:
-  - cargo test
-  - cargo doc --no-deps
+  - |
+      travis-cargo build &&
+      travis-cargo test &&
+      travis-cargo bench &&
+      travis-cargo --only stable doc
 after_success:
-  - bash scripts/travis-doc-upload.sh
+  - travis-cargo --only stable doc-upload
+  - travis-cargo coveralls --no-sudo --verify