failingBuild 'c'

        when:
        fails ':a:build'

        then:
        failure.assertHasCause 'failure in c'

        and:
        jarsBuilt 'd'
        jarsNotBuilt 'a', 'b', 'c'
    }

    // 'c' + 'd' _may_ be built with parallel executer
    // test can't handle parallel task execution
    @Requires(IntegTestPreconditions.NotParallelOrConfigCacheExecutor)