error: cannot find attribute `autodiff_reverse` in this scope | |
--> $DIR/feature-gate-autodiff.rs:9:3 | |
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LL | #[autodiff_reverse(dfoo)] | |
| ^^^^^^^^^^^^^^^^ | |
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help: consider importing this attribute macro | |
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LL + use std::autodiff::autodiff_reverse; | |
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error: aborting due to 1 previous error | |