可以正常退出，但是会报错
> 2022-07-29 20:51:46 E/main: java.util.concurrent.CancellationException: SelectorNetworkHandler is already closed java.util.concurrent.CancellationException: SelectorNetworkHandler is already closed at net.mamoe.mirai.internal.network.handler.selector.SelectorNetworkHandler.sendAndExpect$suspendImpl(SelectorNetworkHandler.kt:118) at net.mamoe.mirai.internal.network.handler.selector.SelectorNetworkHandler.sendAndExpect(SelectorNetworkHandler.kt) at net.mamoe.mirai.internal.network.handler.NetworkHandler.sendAndExpect$default(NetworkHandler.kt:148) at net.mamoe.mirai.internal.message.protocol.outgoing.MessageProtocolStrategy.sendPacket$suspendImpl(MessageProtocolStrategy.kt:35) at net.mamoe.mirai.internal.message.protocol.outgoing.MessageProtocolStrategy.sendPacket(MessageProtocolStrategy.kt) at net.mamoe.mirai.internal.message.protocol.impl.GeneralMessageSenderProtocol$GeneralMessageSender.sendSinglePacket(GeneralMessageSenderProtocol.kt:105) at net.mamoe.mirai.internal.message.protocol.impl.GeneralMessageSenderProtocol$GeneralMessageSender.sendAllPackets(GeneralMessageSenderProtocol.kt:89) at net.mamoe.mirai.internal.message.protocol.impl.GeneralMessageSenderProtocol$GeneralMessageSender.process(GeneralMessageSenderProtocol.kt:68) at net.mamoe.mirai.internal.message.protocol.outgoing.OutgoingMessageProcessorAdapter.process(OutgoingMessagePipelineProcessor.kt:26) at net.mamoe.mirai.internal.message.protocol.outgoing.OutgoingMessageProcessorAdapter.process(OutgoingMessagePipelineProcessor.kt:20) at net.mamoe.mirai.internal.pipeline.AbstractProcessorPipeline.process$suspendImpl(ProcessorPipeline.kt:260) at net.mamoe.mirai.internal.pipeline.AbstractProcessorPipeline.process(ProcessorPipeline.kt) at net.mamoe.mirai.internal.message.protocol.MessageProtocolFacadeImpl.preprocessAndSendOutgoingImpl(MessageProtocolFacade.kt:311) at net.mamoe.mirai.internal.message.protocol.MessageProtocolFacadeImpl.preprocessAndSendOutgoing(MessageProtocolFacade.kt:296) at net.mamoe.mirai.internal.message.protocol.MessageProtocolFacade$INSTANCE.preprocessAndSendOutgoing(MessageProtocolFacade.kt) at net.mamoe.mirai.internal.contact.AbstractUserKt.sendMessageImpl(AbstractUser.kt:264) at net.mamoe.mirai.internal.contact.GroupImpl.sendMessage(GroupImpl.kt:188) at net.mamoe.mirai.console.command.MemberCommandSender.sendMessage$suspendImpl(CommandSender.kt:648) at net.mamoe.mirai.console.command.MemberCommandSender.sendMessage(CommandSender.kt) at net.mamoe.mirai.console.command.MemberCommandSender.sendMessage$suspendImpl(CommandSender.kt:645) at net.mamoe.mirai.console.command.MemberCommandSender.sendMessage(CommandSender.kt) at net.mamoe.mirai.console.command.BuiltInCommands$StopCommand$handle$2.invokeSuspend(BuiltInCommands.kt:144) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33) at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106) at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570) at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:749) at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677) at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)