...
@/mnt/home/buildbot/slave/Linux_64bit/mongo/jstests/replsets/auth2.js:101
Wed Dec 21 19:59:21 uncaught exception: assert.soon failed: function () {
    try {
        m = new Mongo("127.0.0.1:" + port);
        return true;
    } catch (e) {
    }
    return false;
}, msg:unable to connect to mongo program on port 31000
failed to load: /mnt/home/buildbot/slave/Linux_64bit/mongo/jstests/replsets/auth2.js
...