场景：
使用 Mac 搭建的自动化服务器，每天定时执行自动化任务，大约 5-6 天，左右，手机就不能响应自动化了，需要重启手机才恢复，求解答！
log

xctest-client.js:190:18 [master] pid:50733 please check project: /usr/local/lib/node_modules/macaca-ios/node_modules/xctestwd/XCTestWD/XCTestWD.xcodeproj
xctest-client.js:276:14 [master] pid:50733 killing deviceLogProc pid: 16227
xctest-client.js:281:14 [master] pid:50733 killing runnerProc pid: 16220
xctest-client.js:201:16 [master] pid:50733 xctest client exit with code: 65, signal: null
xctest-client.js:155:16 [master] pid:50733 devicelog exit with code: null, signal: SIGKILL
xctest-client.js:268:14 [master] pid:50733 Fail to start xctest: undefined
macaca-ios.js:169:12 [master] pid:50733 Trying to start xctestwd server...
xctest-client.js:242:14 [master] pid:50733 xcode version: 9.2
XCTestWD version: 1.3.13
xctest-client.js:190:18 [master] pid:50733 please check project: /usr/local/lib/node_modules/macaca-ios/node_modules/xctestwd/XCTestWD/XCTestWD.xcodeproj
xctest-client.js:190:18 [master] pid:50733 please check project: /usr/local/lib/node_modules/macaca-ios/node_modules/xctestwd/XCTestWD/XCTestWD.xcodeproj
xctest-client.js:190:18 [master] pid:50733 please check project: /usr/local/lib/node_modules/macaca-ios/node_modules/xctestwd/XCTestWD/XCTestWD.xcodeproj
xctest-client.js:190:18 [master] pid:50733 please check project: /usr/local/lib/node_modules/macaca-ios/node_modules/xctestwd/XCTestWD/XCTestWD.xcodeproj
xctest-client.js:190:18 [master] pid:50733 please check project: /usr/local/lib/node_modules/macaca-ios/node_modules/xctestwd/XCTestWD/XCTestWD.xcodeproj
xctest-client.js:190:18 [master] pid:50733 please check project: /usr/local/lib/node_modules/macaca-ios/node_modules/xctestwd/XCTestWD/XCTestWD.xcodeproj
xctest-client.js:190:18 [master] pid:50733 please check project: /usr/local/lib/node_modules/macaca-ios/node_modules/xctestwd/XCTestWD/XCTestWD.xcodeproj
xctest-client.js:276:14 [master] pid:50733 killing deviceLogProc pid: 16425
xctest-client.js:281:14 [master] pid:50733 killing runnerProc pid: 16363
xctest-client.js:201:16 [master] pid:50733 xctest client exit with code: 65, signal: null
xctest-client.js:155:16 [master] pid:50733 devicelog exit with code: null, signal: SIGKILL
xctest-client.js:268:14 [master] pid:50733 Fail to start xctest: undefined
macaca-ios.js:169:12 [master] pid:50733 Trying to start xctestwd server...
xctest-client.js:242:14 [master] pid:50733 xcode version: 9.2
XCTestWD version: 1.3.13
log