An error occurred in a `before(:suite)` hook.
Failure/Error: raise CommandFailure, "Host '#{self}' exited with #{result.exit_code} running:\n #{cmdline}\nLast #{@options[:trace_limit]} lines of output were:\n#{result.formatted_output(@options[:trace_limit])}"
Beaker::Host::CommandFailure:
  Host 'ubuntu-server-16.04-amd64' exited with 127 running:
   ZUUL_REF= ZUUL_BRANCH= ZUUL_URL= PUPPET_MAJ_VERSION=4 bash openstack/puppet-openstack-integration/install_modules.sh
  Last 10 lines of output were:
  	--------------------------------------------------------------------------------
  	| Install r10k                                                                 |
  	--------------------------------------------------------------------------------
  	+ '[' -n 'SHELLOPTS=braceexpand:hashall:interactive-comments:xtrace
  	    if [ -n "$(set | grep xtrace)" ]; then
  	        local enable_xtrace='\''yes'\'';
  	    if [ -n "${enable_xtrace}" ]; then' ']'
  	+ set +x
  	+ gem install fast_gettext -v '< 1.2.0'
  	openstack/puppet-openstack-integration/install_modules.sh: line 29: gem: command not found