Comment 0 for bug 1588631

The unit tests that use a fake server fail in LXC.
It seems to be trying to access the proxy. Setting the envvar no_proxy=localhost fixes it.

[Impact]

 * No impact for users.

 * It seems to impact some launchpad builders, but after 5 runs we saw no more errors.

[Test Case]

 * launch a xenial lxc
 * clone the snapcraft repository
 * run gbp build-package

[Regression Potential]

 * None. It could affect the existing autopkgtests, but we have an execution before this gets to master, and it will execute again before it gets to proposed.