message: use travis default rust installation
diff: @@ -2,7 +2,9 @@ sudo: required
  dist: trusty
  git:
  submodules: true
  -language: c
  +language: c rust
  +rust:
  + - nightly
  compiler: gcc
  before_install:
  - echo "deb https://dl.bintray.com/rwth-os/hermitcore vivid main" | sudo tee -a /etc/apt/sources.list
  @@ -12,8 +14,6 @@ before_install:
  - git submodule update --init lwip usr/libomp
  script:
  - - curl https://sh.rustup.rs -sSf | sh
  - - rustup install nightly
  - source cmake/local-cmake.sh
  - mkdir build
  - cd build
  