It's an old flavor not well supported by homebrew any longer, so what's happening is that most of the dependency packages we ask to install have to build from source, which means it takes a long long time.
By disabling OpenCV and Qt homebrew installation for it, we can make it fast again. Neither the minimal OpenCV interop, nor osltoy (the only thing that needs Qt) are exercised by the automated testsuite anyway, so I don't think there's any loss of testing functionality in practice.
It's an old flavor not well supported by homebrew any longer, so what's happening is that most of the dependency packages we ask to install have to build from source, which means it takes a long long time.
By disabling OpenCV and Qt homebrew installation for it, we can make it fast again. Neither the minimal OpenCV interop, nor osltoy (the only thing that needs Qt) are exercised by the automated testsuite anyway, so I don't think there's any loss of testing functionality in practice.