The xenial image is using version 1.29.7 of rvm (as of today) while version 1.29.9 is the latest stable version available.
As a result, using
jruby-9 alias will install jruby version 184.108.40.206 instead of 220.127.116.11.
Please consider using the latest stable version of rvm.
Please note that it’s not possible to manually update
rvm in a
before_install task because the
rvm matrix runs before.