arm-android docker image is broken after a rebuild

[pietroalbini]

Any freshly built arm-android Docker image is unable to build the compiler, crashing with a QEMU error message:

emulator: ERROR: detected a hanging thread 'QEMU1 main loop'. No response for 105001 ms

The image currently in the cache is fine, but if that image has to be rebuilt for whatever reason CI is broken.

cc @rust-lang/infra

[pietroalbini]

Opened an issue upstream: https://issuetracker.google.com/issues/130080449 (note: the link requires a Google account)