Random failures in Memcached testsuite due to port conflicts

[ERROR] testStoreAsBinaryOverride(org.infinispan.server.memcached.MemcachedFunctionalTest)  Time elapsed: 0.028 s  <<< FAILURE!
io.netty.channel.unix.Errors$NativeIoException: bind(..) failed: Address already in use
        at io.netty.channel.unix.Errors.newIOException(Errors.java:117)
        at io.netty.channel.unix.Socket.bind(Socket.java:234)
        at io.netty.channel.epoll.EpollServerSocketChannel.doBind(EpollServerSocketChannel.java:91)
        at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:554)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1258)
        at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:501)
        at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:486)
        at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:980)
        at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:250)
        at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:365)
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:403)
        at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:304)
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
        at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
        at java.lang.Thread.run(Thread.java:748)