message: Use builder image with Node.js v8.2.0 and Yarn v0.27.5.
diff: # ./builder-run ./my-script --my-script-arg1 --my-script-arg2
  -BUILDER_IMAGE=quay.io/coreos/tectonic-console-builder:v9
  +BUILDER_IMAGE=quay.io/coreos/tectonic-console-builder:v10
  # forward whitelisted env variables to docker
  ENV_STR=""
  