r320183 (rpc.lockd cleanup) breaks virtualbox-ose build

[Ed Maste]

On 11 July 2017 at 12:44, Don Lewis <truckman at freebsd.org> wrote:
> This is a really strange problem ...
>
> Last week I upgraded my 12.0-CURRENT package build box from r318774 to
> r320570.  I also upgraded the poudriere jail to match.  When I went to
> build packages, the virtualbox-ose build failed due to ar segfaulting.

Can you give the patch in https://reviews.freebsd.org/D11687 a try?