[Buildbot] #3277: Builds that contain commands with SlaveLocks fail with exceptions due to inability to coerce SlaveLock to renderable

[Buildbot trac]

#3277: Builds that contain commands with SlaveLocks fail with exceptions due to
inability to coerce SlaveLock to renderable
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Reporter:  cody       |       Owner:
    Type:  undecided  |      Status:  new
Priority:  major      |   Milestone:  0.8.x
 Version:  master     |  Resolution:
Keywords:             |
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Comment (by vlovich):

 0.8.x branch does not contain support for renderable locks.  Straight
 backport doesn't work I believe & needs 1 additional change (the pull
 request for 0.8 is here: https://github.com/buildbot/buildbot/pull/1711)

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Ticket URL: <http://trac.buildbot.net/ticket/3277#comment:1>
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