Improve backward compatability draft1 · QED-it/halo2@bf66955

The job was canceled because "stable_ubuntu-latest" failed.

Run tests: halo2_gadgets/src/sinsemilla/merkle/chip.rs#L60

missing documentation for a macro

Run tests: halo2_gadgets/src/sinsemilla/merkle/chip.rs#L188

missing documentation for a macro

Run tests: halo2_gadgets/src/sinsemilla/merkle/chip.rs#L412

missing documentation for a macro

Run tests: halo2_gadgets/src/sinsemilla/merkle/chip.rs#L426

missing documentation for a macro

Run tests: halo2_gadgets/src/sinsemilla/merkle/chip.rs#L463

missing documentation for a macro

The operation was canceled.

Run tests: halo2_gadgets/src/ecc/chip.rs#L10

unused import: `PrimeFieldBits`

Run tests: halo2_gadgets/src/ecc/chip.rs#L31

unused import: `crate::utilities::lookup_range_check::LookupRangeCheck`

Run tests: halo2_gadgets/src/sinsemilla/merkle/chip.rs#L21

unused import: `crate::sinsemilla_opt::chip::SinsemillaConfigOptimized`

Run tests: halo2_gadgets/src/sinsemilla_opt/chip.rs#L13

unused import: `Affine`

Run tests: halo2_gadgets/src/sinsemilla_opt/chip.rs#L18

unused imports: `C`, `K`

Run tests: halo2_gadgets/src/sinsemilla_opt/merkle.rs#L4

unused imports: `Chip`, `Layouter`, `Value`, `plonk::Error`

Run tests: halo2_gadgets/src/sinsemilla_opt/merkle.rs#L7

unused import: `pasta_curves::arithmetic::CurveAffine`

Run tests: halo2_gadgets/src/sinsemilla_opt/merkle.rs#L9

unused imports: `HashDomains`, `SinsemillaInstructions`

Run tests: halo2_gadgets/src/sinsemilla_opt/merkle.rs#L10

unused import: `MerklePath`

Run tests: halo2_gadgets/src/sinsemilla_opt/merkle.rs#L12

unused imports: `UtilitiesInstructions`, `cond_swap::CondSwapInstructions`, `i2lebsp`

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