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I also saw another one with `rusttest` for arm64 and > riscv64. Did you see that one? We probably need a `cfg(testlib)` > split. I am not sure how much value does `rusttest` still provide, given that KUni= t can test much more stuff in an actual envirionment. The fact that we have to do special casing does suggest to me that we might want to remove it. Best, Gary