Travis supports rust directly now :D

.travis.yml

@@ -1,15 +1,8 @@
+language: rust
 
-before_install:
-  - sudo add-apt-repository --yes ppa:hansjorg/rust
-  - sudo add-apt-repository --yes ppa:cmrx64/cargo
-  - sudo apt-get update -qq
 install:
-  - sudo apt-get install -qq rust-nightly cargo
   - git clone https://github.com/sipa/secp256k1.git
   - cd secp256k1
   - ./autogen.sh && ./configure && make && sudo make install
   - sudo ldconfig /usr/local/lib
-script:
-  - cargo build
-  - cargo test