error: using `clone` on type `utilities::lookup_range_check::tests::short_range_check::MyCircuit<pasta_curves::Fp>` which implements the `Copy` trait
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:784:33
    |
784 |             test_proof_size(11, circuit.clone(), &params, &vk);
    |                                 ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `circuit`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy

error: using `clone` on type `utilities::lookup_range_check::tests::short_range_check::MyCircuit<pasta_curves::Fp>` which implements the `Copy` trait
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:737:33
    |
737 |             test_proof_size(11, circuit.clone(), &params, &vk);
    |                                 ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `circuit`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy

error: using `clone` on type `utilities::lookup_range_check::tests::short_range_check::MyCircuit<pasta_curves::Fp>` which implements the `Copy` trait
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:689:33
    |
689 |             test_proof_size(11, circuit.clone(), &params, &vk);
    |                                 ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `circuit`
    |
    = note: `-D clippy::clone-on-copy` implied by `-D warnings`
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy

error: redundant clone
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:791:38
    |
791 |                     proofs.push(proof.clone());
    |                                      ^^^^^^^^ help: remove this
    |
note: this value is dropped without further use
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:791:33
    |
791 |                     proofs.push(proof.clone());
    |                                 ^^^^^
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_clone

error: redundant clone
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:744:38
    |
744 |                     proofs.push(proof.clone());
    |                                      ^^^^^^^^ help: remove this
    |
note: this value is dropped without further use
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:744:33
    |
744 |                     proofs.push(proof.clone());
    |                                 ^^^^^
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_clone

error: redundant clone
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:696:38
    |
696 |                     proofs.push(proof.clone());
    |                                      ^^^^^^^^ help: remove this
    |
    = note: `-D clippy::redundant-clone` implied by `-D warnings`
note: this value is dropped without further use
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:696:33
    |
696 |                     proofs.push(proof.clone());
    |                                 ^^^^^
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_clone

error: unused variable: `proofs`
   --> halo2_gadgets/src/utilities/lookup_range_check.rs:656:17
    |
656 |             let proofs= {
    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_proofs`
    |
    = note: `-D unused-variables` implied by `-D warnings`

error: function is never used: `write_all_test_case`
  --> halo2_gadgets/src/utilities/test_circuit.rs:93:15
   |
93 | pub(crate) fn write_all_test_case<W: Write>(
   |               ^^^^^^^^^^^^^^^^^^^

error: function is never used: `test_proof_size`
  --> halo2_gadgets/src/utilities/test_circuit.rs:58:15
   |
58 | pub(crate) fn test_proof_size<C>(
   |               ^^^^^^^^^^^^^^^
   |
   = note: `-D dead-code` implied by `-D warnings`