and:
        testKitDir.eachFileRecurse {
            assert !it.name.contains("gradle-$lowestMajorGradleVersion-bin.zip")
        }

        cleanup:
        killDaemons(lowestMajorGradleVersion)
    }

    private void killDaemons(String version) {
        if (!debug) {
            testKitDaemons(GradleVersion.version(version)).killAll()
        }
    }