Steps to Reproduce

I build a quick demo project, just run that and press the floating action button.
Note that this project uses the git version, which was suggested here, but the crash was also reproducible with 0.6.3+2.

Results:

It crashes reliably on two tested Huawei phones when controller.takePicture() is called.
No issues on a moto g7 plus and OnePlus 6 device.

Analyzing demo...
   info • Unused import: 'package:demo/main.dart' • test/widget_test.dart:11:8 • unused_import
  error • The function 'MyApp' isn't defined • test/widget_test.dart:16:29 • undefined_function
2 issues found. (ran in 1.4s)