[INFO] cloning repository https://github.com/jkciw/zkpchallenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkciw/zkpchallenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkciw%2Fzkpchallenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkciw%2Fzkpchallenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e499fe67ada0c41499cc7f0639a460ce9a42709a
[INFO] checking jkciw/zkpchallenge against try#2cbf9c3ff35600794d69a7dc7ab399810a067910 for pr-129249-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkciw%2Fzkpchallenge" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jkciw/zkpchallenge
[INFO] finished tweaking git repo https://github.com/jkciw/zkpchallenge
[INFO] tweaked toml for git repo https://github.com/jkciw/zkpchallenge written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jkciw/zkpchallenge on toolchain 2cbf9c3ff35600794d69a7dc7ab399810a067910
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jkciw/zkpchallenge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 957d1f505cd92404993b293d531e95896b70ab8d605cdc7e3f2645950cfd1de6
[INFO] running `Command { std: "docker" "start" "957d1f505cd92404993b293d531e95896b70ab8d605cdc7e3f2645950cfd1de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "957d1f505cd92404993b293d531e95896b70ab8d605cdc7e3f2645950cfd1de6" "/opt/rustwide/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "957d1f505cd92404993b293d531e95896b70ab8d605cdc7e3f2645950cfd1de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "957d1f505cd92404993b293d531e95896b70ab8d605cdc7e3f2645950cfd1de6" "/opt/rustwide/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `schnorr::Signature`
[INFO] [stdout]  --> src/prover.rs:3:50
[INFO] [stdout]   |
[INFO] [stdout] 3 | use secp256k1::{Secp256k1, SecretKey, PublicKey, schnorr::Signature, Message, Keypair, All};
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Digest` and `Sha256`
[INFO] [stdout]  --> src/challenge.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sha2::{Sha256, Digest};
[INFO] [stdout]   |            ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_g`
[INFO] [stdout]   --> src/commitment.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let a_g = generator_g.mul_tweak(secp, &value_scalar)?; //THIS IS: aG
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_a_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_h`
[INFO] [stdout]   --> src/commitment.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let r_h = generator_h.mul_tweak(secp, &blinding_scalar)?; //THIS IS: rH
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_r_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `challenge`
[INFO] [stdout]   --> src/prover.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     challenge: &BulletproofChallenge,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_challenge`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secp`
[INFO] [stdout]   --> src/prover.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let secp = Secp256k1::new();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_secp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transcript`
[INFO] [stdout]   --> src/challenge.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn generate_challenge(transcript: &[u8]) -> Result<BulletproofChallenge, Box<dyn Error>> {
[INFO] [stdout]    |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transcript`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `schnorr::Signature`
[INFO] [stdout]  --> src/prover.rs:3:50
[INFO] [stdout]   |
[INFO] [stdout] 3 | use secp256k1::{Secp256k1, SecretKey, PublicKey, schnorr::Signature, Message, Keypair, All};
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Digest` and `Sha256`
[INFO] [stdout]  --> src/challenge.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sha2::{Sha256, Digest};
[INFO] [stdout]   |            ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secp`
[INFO] [stdout]   --> src/confidential_tx.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let secp = Secp256k1::new();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_secp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `commitment`
[INFO] [stdout]   --> src/inner_product.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     for commitment in bit_commitments.iter().skip(1) {
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_commitment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `response_challenge` is never read
[INFO] [stdout]   --> src/prover.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct BulletproofResponse {
[INFO] [stdout]    |            ------------------- field in this struct
[INFO] [stdout] 12 |     pub response_commitment: PublicKey,
[INFO] [stdout] 13 |     pub response_challenge: SecretKey,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `challenge` is never read
[INFO] [stdout]  --> src/challenge.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BulletproofChallenge {
[INFO] [stdout]   |            -------------------- field in this struct
[INFO] [stdout] 7 |     pub challenge: SecretKey,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BulletproofChallenge` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `Scalar`
[INFO] [stdout]   --> src/commitment.rs:17:52
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let generator_h = generator_g.mul_tweak(secp, &h_scalar.into())?;
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: you can instead use the fully-qualified path `<Scalar as Into<Scalar>::into(val) to avoid triggering this lint
[INFO] [stdout]    = note: `#[warn(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_g`
[INFO] [stdout]   --> src/commitment.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let a_g = generator_g.mul_tweak(secp, &value_scalar)?; //THIS IS: aG
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_a_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_h`
[INFO] [stdout]   --> src/commitment.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let r_h = generator_h.mul_tweak(secp, &blinding_scalar)?; //THIS IS: rH
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_r_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `challenge`
[INFO] [stdout]   --> src/prover.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     challenge: &BulletproofChallenge,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_challenge`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secp`
[INFO] [stdout]   --> src/prover.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let secp = Secp256k1::new();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_secp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transcript`
[INFO] [stdout]   --> src/challenge.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn generate_challenge(transcript: &[u8]) -> Result<BulletproofChallenge, Box<dyn Error>> {
[INFO] [stdout]    |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transcript`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `secp`
[INFO] [stdout]   --> src/confidential_tx.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let secp = Secp256k1::new();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_secp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `commitment`
[INFO] [stdout]   --> src/inner_product.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     for commitment in bit_commitments.iter().skip(1) {
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_commitment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `response_challenge` is never read
[INFO] [stdout]   --> src/prover.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct BulletproofResponse {
[INFO] [stdout]    |            ------------------- field in this struct
[INFO] [stdout] 12 |     pub response_commitment: PublicKey,
[INFO] [stdout] 13 |     pub response_challenge: SecretKey,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `challenge` is never read
[INFO] [stdout]  --> src/challenge.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BulletproofChallenge {
[INFO] [stdout]   |            -------------------- field in this struct
[INFO] [stdout] 7 |     pub challenge: SecretKey,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BulletproofChallenge` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `Scalar`
[INFO] [stdout]   --> src/commitment.rs:17:52
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let generator_h = generator_g.mul_tweak(secp, &h_scalar.into())?;
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: you can instead use the fully-qualified path `<Scalar as Into<Scalar>::into(val) to avoid triggering this lint
[INFO] [stdout]    = note: `#[warn(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "957d1f505cd92404993b293d531e95896b70ab8d605cdc7e3f2645950cfd1de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "957d1f505cd92404993b293d531e95896b70ab8d605cdc7e3f2645950cfd1de6", kill_on_drop: false }`
[INFO] [stdout] 957d1f505cd92404993b293d531e95896b70ab8d605cdc7e3f2645950cfd1de6
