Comment 6 for bug 1221705

So the original tests that failed now pass with mgo rev 245, however, we have another test failing periodically even with that fix
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FAIL: assign_test.go:913: assignCleanSuite.TestAssignUsingConstraintsToMachine

[LOG] 20.47509 INFO juju.state opening state; mongo addresses: ["localhost:45631"]; entity ""
[LOG] 20.47805 INFO juju.state connection established
[LOG] 20.49497 INFO juju.state initializing environment
test 0
test 1
test 2
test 3
test 4
test 5
test 6
test 7
test 8
test 9
test 10
test 11
test 12
test 13
test 14
test 15
assign_test.go:921:
    c.Assert(err, gc.IsNil)
... value *errors.errorString = &errors.errorString{s:"cannot add unit to service \"wordpress\": read tcp 127.0.0.1:45631: i/o timeout"} ("cannot add unit to service \"wordpress\": read tcp 127.0.0.1:45631: i/o timeout")

OOPS: 321 passed, 1 FAILED
--- FAIL: TestPackage (68.58 seconds)

So for now, we're using rev 240 in bot running the test suite.