Repository: flutter
Issue: "getVM: (112) Service has disappeared" on ios_app_with_extensions_test
Labels: c: crash,tool,dependency: dart,P2,c: flake,team-tool,triaged-tool

```
2021-02-18T17:43:14.687604: 
Executing: /Users/flutter/.cocoon/flutter/bin/flutter run -d 1A03BE03-0AF1-41BD-84C1-AE661358E509 in /var/folders/ws/_c0c34n960l1xc2scwr9m56r0000gn/T/ios_app_with_extensions_testQksKMr/app_with_extensions
2021-02-18T17:43:16.670206: stdout: Running "flutter pub get" in app_with_extensions...                803ms
2021-02-18T17:43:16.969888: stdout: Launching lib/main.dart on TestFlutteriPhoneWithWatch in debug mode...
2021-02-18T17:43:23.900646: stdout: Running pod install...                                           1,403ms
2021-02-18T17:43:23.930932: stdout: Watch companion app found. Adjusting build settings.
2021-02-18T17:44:01.307507: stdout: Running Xcode build...                                          
2021-02-18T17:44:01.310081: stdout: Xcode build done.                                           37.4s
2021-02-18T17:44:06.189278: stdout: Syncing files to device TestFlutteriPhoneWithWatch...               73ms
2021-02-18T17:44:06.200204: stdout: 
2021-02-18T17:44:06.200608: stdout: Flutter run key commands.
2021-02-18T17:44:06.202957: stdout: r Hot reload. 🔥🔥🔥
2021-02-18T17:44:06.203571: stdout: R Hot restart.
2021-02-18T17:44:06.203824: stdout: h Repeat this help message.
2021-02-18T17:44:06.204130: stdout: d Detach (terminate "flutter run" but leave application running).
2021-02-18T17:44:06.204387: stdout: c Clear the screen
2021-02-18T17:44:06.204780: stdout: q Quit (terminate the application on the device).
stdout: 
2021-02-18T17:44:06.204909: stdout: Running with unsound null safety
2021-02-18T17:44:06.205026: stdout: For more information see https://dart.dev/null-safety/unsound-null-safety
2021-02-18T17:44:06.205113: stdout: 
2021-02-18T17:44:06.205770: stdout: An Observatory debugger and profiler on TestFlutteriPhoneWithWatch is available at: http://127.0.0.1:63498/tYlmyx1mSDE=/
2021-02-18T17:44:06.212093: stdout: 
2021-02-18T17:44:06.893041: stdout: The Flutter DevTools debugger and profiler on TestFlutteriPhoneWithWatch is available at: http://127.0.0.1:9100?uri=http%3A%2F%2F127.0.0.1%3A63498%2FtYlmyx1mSDE%3D%2F
2021-02-18T17:44:06.909282: stderr: 
2021-02-18T17:44:06.913210: stderr: Oops; flutter has exited unexpectedly: "getVM: (112) Service has disappeared".
2021-02-18T17:44:07.177933: stdout: Application finished.
2021-02-18T17:44:07.195663: stderr: A crash report has been written to /private/var/folders/ws/_c0c34n960l1xc2scwr9m56r0000gn/T/ios_app_with_extensions_testQksKMr/app_with_extensions/flutter_01.log.
stdout: This crash may already be reported. Check GitHub for similar crashes.
2021-02-18T17:44:07.195977: stdout: https://github.com/flutter/flutter/issues?q=is%3Aissue+getVM%3A+%28112%29+Service+has+disappeared
stdout: 
2021-02-18T17:44:07.196045: stdout: To report your crash to the Flutter team, first read the guide to filing a bug.
2021-02-18T17:44:07.196186: stdout: https://flutter.dev/docs/resources/bug-reports
stdout: 
2021-02-18T17:44:07.196301: stdout: Create a new GitHub issue by pasting this link into your browser and completing the issue template. Thank you!
2021-02-18T17:44:07.640040: stdout: https://git.io/Jty3I
stdout: 
2021-02-18T17:44:07.664701: "/Users/flutter/.cocoon/flutter/bin/flutter" exit code: 1
2021-02-18T17:44:07.720153: 
Executing: xcrun simctl shutdown 1DA9072A-CD8B-4053-B76C-7D99FCB0895E in /Users/flutter/.cocoon/flutter
2021-02-18T17:44:13.847764: "xcrun" exit code: 0
```

happened on https://github.com/flutter/flutter/commit/69775c5d0a64e92b5dc24fd4f5ca7d8fadd034a7.
Looks similar to https://github.com/flutter/flutter/issues/75097