[INFO] cloning repository https://github.com/BlockchainIdentityLab/zero-knowledge-rust-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BlockchainIdentityLab/zero-knowledge-rust-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlockchainIdentityLab%2Fzero-knowledge-rust-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlockchainIdentityLab%2Fzero-knowledge-rust-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbdd17e79a054e629587885cd840263b6737b424
[INFO] building BlockchainIdentityLab/zero-knowledge-rust-example against try#615edd3ad1cf6871c977dc900317cb6c2070fd6b for pr-97334
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlockchainIdentityLab%2Fzero-knowledge-rust-example" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlockchainIdentityLab/zero-knowledge-rust-example on toolchain 615edd3ad1cf6871c977dc900317cb6c2070fd6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BlockchainIdentityLab/zero-knowledge-rust-example
[INFO] finished tweaking git repo https://github.com/BlockchainIdentityLab/zero-knowledge-rust-example
[INFO] tweaked toml for git repo https://github.com/BlockchainIdentityLab/zero-knowledge-rust-example written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/BlockchainIdentityLab/zero-knowledge-rust-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 868d608503d15c2a473efe727c8326c2aeee7de5c75106241d9f63c5e18dc02a
[INFO] running `Command { std: "docker" "start" "-a" "868d608503d15c2a473efe727c8326c2aeee7de5c75106241d9f63c5e18dc02a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "868d608503d15c2a473efe727c8326c2aeee7de5c75106241d9f63c5e18dc02a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "868d608503d15c2a473efe727c8326c2aeee7de5c75106241d9f63c5e18dc02a", kill_on_drop: false }`
[INFO] [stdout] 868d608503d15c2a473efe727c8326c2aeee7de5c75106241d9f63c5e18dc02a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9503b61e376b10967b1586b7e18909ed47c81d5564adb9e01f3b2d2f68421cea
[INFO] running `Command { std: "docker" "start" "-a" "9503b61e376b10967b1586b7e18909ed47c81d5564adb9e01f3b2d2f68421cea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling sha3 v0.7.3
[INFO] [stderr]    Compiling zk-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/prover.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha3_256`
[INFO] [stdout]  --> src/prover.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::sha3::{Digest, Sha3_256};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/prover.rs:93:16
[INFO] [stdout]    |
[INFO] [stdout] 93 |             if (i != self.problem.partition_sizes.len() - 1) {
[INFO] [stdout]    |                ^                                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 93 -             if (i != self.problem.partition_sizes.len() - 1) {
[INFO] [stdout] 93 +             if i != self.problem.partition_sizes.len() - 1 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/verifier.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{thread_rng, Rng, SeedableRng, StdRng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Digest`
[INFO] [stdout]  --> src/prover.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::sha3::{Digest, Sha3_256};
[INFO] [stdout]   |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/prover.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for mut i in 0..num_queries {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/merkle.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         for i in 0..next_pow_2 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/merkle.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for (i, value) in leaf_node_data.iter().enumerate().rev() {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hasher`
[INFO] [stdout]   --> src/merkle.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 let mut hasher = Sha3_256::new();                   
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hasher`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs_val`
[INFO] [stdout]   --> src/verifier.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let abs_val = (proof.merkle_proof_1.value - proof.merkle_proof_2.value).abs();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs_problem`
[INFO] [stdout]   --> src/verifier.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let abs_problem = problem[query_idx].abs();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abs_problem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/prover.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for mut i in 0..num_queries {
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/merkle.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 let mut hasher = Sha3_256::new();                   
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `merkle`, `prover`
[INFO] [stdout]  --> src/main.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zkpartition::{merkle, prover, problem};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let config = problem::PartictionProblem::new(&problem, &assignment).unwrap_or_else(|err| {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.40s
[INFO] running `Command { std: "docker" "inspect" "9503b61e376b10967b1586b7e18909ed47c81d5564adb9e01f3b2d2f68421cea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9503b61e376b10967b1586b7e18909ed47c81d5564adb9e01f3b2d2f68421cea", kill_on_drop: false }`
[INFO] [stdout] 9503b61e376b10967b1586b7e18909ed47c81d5564adb9e01f3b2d2f68421cea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,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" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed71e0fdff9ebabccdeb516fc1948d94adca0b65e944a0cd3405f826cc5fbed4
[INFO] running `Command { std: "docker" "start" "-a" "ed71e0fdff9ebabccdeb516fc1948d94adca0b65e944a0cd3405f826cc5fbed4", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/prover.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha3_256`
[INFO] [stdout]  --> src/prover.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::sha3::{Digest, Sha3_256};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/prover.rs:93:16
[INFO] [stdout]    |
[INFO] [stdout] 93 |             if (i != self.problem.partition_sizes.len() - 1) {
[INFO] [stdout]    |                ^                                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 93 -             if (i != self.problem.partition_sizes.len() - 1) {
[INFO] [stdout] 93 +             if i != self.problem.partition_sizes.len() - 1 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/verifier.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{thread_rng, Rng, SeedableRng, StdRng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Digest`
[INFO] [stdout]  --> src/prover.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::sha3::{Digest, Sha3_256};
[INFO] [stdout]   |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/prover.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for mut i in 0..num_queries {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/merkle.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         for i in 0..next_pow_2 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/merkle.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for (i, value) in leaf_node_data.iter().enumerate().rev() {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hasher`
[INFO] [stdout]   --> src/merkle.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 let mut hasher = Sha3_256::new();                   
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hasher`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs_val`
[INFO] [stdout]   --> src/verifier.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let abs_val = (proof.merkle_proof_1.value - proof.merkle_proof_2.value).abs();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs_problem`
[INFO] [stdout]   --> src/verifier.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let abs_problem = problem[query_idx].abs();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abs_problem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/prover.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for mut i in 0..num_queries {
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/merkle.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 let mut hasher = Sha3_256::new();                   
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zk-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `merkle`, `prover`
[INFO] [stdout]  --> src/main.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zkpartition::{merkle, prover, problem};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let config = problem::PartictionProblem::new(&problem, &assignment).unwrap_or_else(|err| {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/prover.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha3_256`
[INFO] [stdout]  --> src/prover.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::sha3::{Digest, Sha3_256};
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/prover.rs:93:16
[INFO] [stdout]    |
[INFO] [stdout] 93 |             if (i != self.problem.partition_sizes.len() - 1) {
[INFO] [stdout]    |                ^                                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 93 -             if (i != self.problem.partition_sizes.len() - 1) {
[INFO] [stdout] 93 +             if i != self.problem.partition_sizes.len() - 1 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]  --> src/verifier.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{thread_rng, Rng, SeedableRng, StdRng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Digest`
[INFO] [stdout]  --> src/prover.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::sha3::{Digest, Sha3_256};
[INFO] [stdout]   |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/prover.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for mut i in 0..num_queries {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/merkle.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         for i in 0..next_pow_2 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/merkle.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for (i, value) in leaf_node_data.iter().enumerate().rev() {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hasher`
[INFO] [stdout]   --> src/merkle.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 let mut hasher = Sha3_256::new();                   
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hasher`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs_val`
[INFO] [stdout]   --> src/verifier.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let abs_val = (proof.merkle_proof_1.value - proof.merkle_proof_2.value).abs();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abs_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `abs_problem`
[INFO] [stdout]   --> src/verifier.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let abs_problem = problem[query_idx].abs();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_abs_problem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/prover.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for mut i in 0..num_queries {
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/merkle.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 let mut hasher = Sha3_256::new();                   
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/zkpartition-9536a5fc971ab901)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/zk_tutorial-784753fdd3d5ead8)
[INFO] running `Command { std: "docker" "inspect" "ed71e0fdff9ebabccdeb516fc1948d94adca0b65e944a0cd3405f826cc5fbed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed71e0fdff9ebabccdeb516fc1948d94adca0b65e944a0cd3405f826cc5fbed4", kill_on_drop: false }`
[INFO] [stdout] ed71e0fdff9ebabccdeb516fc1948d94adca0b65e944a0cd3405f826cc5fbed4