message: construction_worker: removed gcc
diff: @@ -33,8 +33,7 @@ matrix:
  env: COMPILER=clang++-3.8
  addons:
  apt:
  - sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-3.8']
  - packages: ['g++-6', 'clang-3.8']
  + packages: ['clang-3.8']
  ################
  # build script #
  