Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -4,9 +4,9 @@
         - apt-get install -y wget sudo
         - wget -O - https://git.u-cergy.fr/blaar/blaar/raw/master/developer_tools/clone_and_install_blaar_ubuntu.sh | bash
 
-build:xenial:
-    image: ubuntu:xenial
-    <<: *install_definition
+#build:xenial: <<xenial does not support move constructor (Arg&& ...)
+#    image: ubuntu:xenial
+#    <<: *install_definition
 
 build:bionic:
     image: ubuntu:bionic