Enable autodiff in ci for all major os *[View all comments](https://triagebot.infra.rust-lang.org/gh-comments/rust-lang/rust/pull/152768)* Follow-up attempt to https://github.com/rust-lang/rust/pull/140064 after moving autodiff to dlopen. It covers Linux (x86_64+aarch64), MacOS (aarch64), Windows (mingw-llvm aarch64+x86_64) The extra build time for Enzyme are 180.27s on our slowest runner (aarch64-apple). The follow-up distribution via rustup probably still needs a small fix, see https://github.com/rust-lang/rust/pull/151063#issuecomment-3778937008 Placing the downloaded libEnzyme artifact on my local linux under `~/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib` enables my nightly compiler to run autodiff. r? @Kobzol closes: https://github.com/rust-lang/rust/pull/140064 closes: https://github.com/rust-lang/rust/pull/151243 closes: https://github.com/rust-lang/rust/pull/151063