[Buildbot-devel] Step fails only under Buildbot

[Bob Hood]

I'm not holding out much hope that there'll be insight or solutions here, but
I thought I'd try.

I've got a unit-test step running under Buildbot.  It is failing with:

    ...
    xxxxxxxx MachOMac xxxxxxxxxxx Module (Build 3000)
    CPU number: 0

    process killed by signal 11
    program finished with exit code -1
    elapsedTime=6.345505

However, when I go directly to the build slave and run the command manually,
using the same settings as the Buildbot Slave (command, arguments, directory,
etc.), it completes without error:

    ...
    xxxxxxxx MachOMac xxxxxxxxxxx Module (Build 3000)
    CPU number: 0
    ...
    Totals: 7 passed, 0 failed, 0 skipped
    ********* Finished testing of xxxxxxxxxx *********
    osx-10-9:bin$ echo $?
    0

Any suggestions on how to figure out why the process fails when run under
Buildbot but not from the CLI?