Comment 6 for bug 1590960

Looks like this problem exists on 1.25 as well, but it at least gives an error during deploy:

$ juju deploy ubuntu --to lxc
Added charm "cs:xenial/ubuntu-0" to the environment.
ERROR adding new machine to host unit "ubuntu/0": cannot add a new machine: machine not found

$ juju status
environment: amazon
machines:
  "0":
    agent-state: started
    agent-version: 1.25.5
    dns-name: 52.38.197.82
    instance-id: i-7e04f2d1
    instance-state: running
    series: xenial
    hardware: arch=amd64 cpu-cores=1 cpu-power=300 mem=3840M root-disk=8192M availability-zone=us-west-2a
    state-server-member-status: has-vote
services:
  ubuntu:
    charm: cs:xenial/ubuntu-0
    exposed: false
    service-status:
      current: unknown
      message: Waiting for agent initialization to finish
      since: 10 Jun 2016 11:16:50-05:00
    units:
      ubuntu/0:
        workload-status:
          current: unknown
          message: Waiting for agent initialization to finish
          since: 10 Jun 2016 11:16:50-05:00
        agent-status:
          current: allocating
          since: 10 Jun 2016 11:16:50-05:00
        agent-state: pending