Dec 18 08:22:25.327 INFO checking BlockchainIdentityLab/zero-knowledge-rust-example against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:22:25.327 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/BlockchainIdentityLab/zero-knowledge-rust-example:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:22:25.552 INFO [stdout] 0e1f98985d37561739a0e25365124c0d127d3d827efe63e1e246856f940a9a18
Dec 18 08:22:25.558 INFO running `"docker" "start" "-a" "0e1f98985d37561739a0e25365124c0d127d3d827efe63e1e246856f940a9a18"`
Dec 18 08:22:26.266 INFO [stderr]     Checking keccak v0.1.0
Dec 18 08:22:26.568 INFO [stderr]     Checking sha3 v0.7.3
Dec 18 08:22:26.965 INFO [stderr]     Checking zk-tutorial v0.1.0 (/opt/crater/workdir)
Dec 18 08:22:27.348 INFO [stderr] warning: unused imports: `Rng`, `thread_rng`
Dec 18 08:22:27.348 INFO [stderr]  --> src/lib.rs:2:12
Dec 18 08:22:27.348 INFO [stderr]   |
Dec 18 08:22:27.348 INFO [stderr] 2 | use rand::{thread_rng, Rng};
Dec 18 08:22:27.348 INFO [stderr]   |            ^^^^^^^^^^  ^^^
Dec 18 08:22:27.348 INFO [stderr]   |
Dec 18 08:22:27.348 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:22:27.348 INFO [stderr] 
Dec 18 08:22:27.348 INFO [stderr] warning: unused import: `std::error::Error`
Dec 18 08:22:27.348 INFO [stderr]  --> src/lib.rs:3:5
Dec 18 08:22:27.348 INFO [stderr]   |
Dec 18 08:22:27.348 INFO [stderr] 3 | use std::error::Error;
Dec 18 08:22:27.348 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 18 08:22:27.348 INFO [stderr] 
Dec 18 08:22:27.348 INFO [stderr] warning: unused import: `std::cmp`
Dec 18 08:22:27.348 INFO [stderr]  --> src/lib.rs:4:5
Dec 18 08:22:27.348 INFO [stderr]   |
Dec 18 08:22:27.348 INFO [stderr] 4 | use std::cmp;
Dec 18 08:22:27.348 INFO [stderr]   |     ^^^^^^^^
Dec 18 08:22:27.348 INFO [stderr] 
Dec 18 08:22:27.348 INFO [stderr] warning: unused import: `std::cmp`
Dec 18 08:22:27.348 INFO [stderr]  --> src/prover.rs:5:5
Dec 18 08:22:27.348 INFO [stderr]   |
Dec 18 08:22:27.348 INFO [stderr] 5 | use std::cmp;
Dec 18 08:22:27.348 INFO [stderr]   |     ^^^^^^^^
Dec 18 08:22:27.348 INFO [stderr] 
Dec 18 08:22:27.348 INFO [stderr] warning: unused import: `Sha3_256`
Dec 18 08:22:27.348 INFO [stderr]  --> src/prover.rs:6:26
Dec 18 08:22:27.348 INFO [stderr]   |
Dec 18 08:22:27.348 INFO [stderr] 6 | use self::sha3::{Digest, Sha3_256};
Dec 18 08:22:27.348 INFO [stderr]   |                          ^^^^^^^^
Dec 18 08:22:27.348 INFO [stderr] 
Dec 18 08:22:27.348 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 18 08:22:27.348 INFO [stderr]   --> src/prover.rs:93:16
Dec 18 08:22:27.348 INFO [stderr]    |
Dec 18 08:22:27.348 INFO [stderr] 93 |             if (i != self.problem.partition_sizes.len() - 1) {
Dec 18 08:22:27.348 INFO [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 08:22:27.348 INFO [stderr]    |
Dec 18 08:22:27.348 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 08:22:27.348 INFO [stderr] 
Dec 18 08:22:27.348 INFO [stderr] warning: unused import: `thread_rng`
Dec 18 08:22:27.348 INFO [stderr]  --> src/verifier.rs:3:12
Dec 18 08:22:27.348 INFO [stderr]   |
Dec 18 08:22:27.348 INFO [stderr] 3 | use rand::{thread_rng, Rng, SeedableRng, StdRng};
Dec 18 08:22:27.348 INFO [stderr]   |            ^^^^^^^^^^
Dec 18 08:22:27.348 INFO [stderr] 
Dec 18 08:22:27.360 INFO [stderr] warning: unused imports: `Rng`, `thread_rng`
Dec 18 08:22:27.360 INFO [stderr]  --> src/lib.rs:2:12
Dec 18 08:22:27.360 INFO [stderr]   |
Dec 18 08:22:27.360 INFO [stderr] 2 | use rand::{thread_rng, Rng};
Dec 18 08:22:27.360 INFO [stderr]   |            ^^^^^^^^^^  ^^^
Dec 18 08:22:27.360 INFO [stderr]   |
Dec 18 08:22:27.360 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:22:27.360 INFO [stderr] 
Dec 18 08:22:27.360 INFO [stderr] warning: unused import: `std::error::Error`
Dec 18 08:22:27.360 INFO [stderr]  --> src/lib.rs:3:5
Dec 18 08:22:27.360 INFO [stderr]   |
Dec 18 08:22:27.360 INFO [stderr] 3 | use std::error::Error;
Dec 18 08:22:27.360 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 18 08:22:27.360 INFO [stderr] 
Dec 18 08:22:27.360 INFO [stderr] warning: unused import: `std::cmp`
Dec 18 08:22:27.360 INFO [stderr]  --> src/lib.rs:4:5
Dec 18 08:22:27.360 INFO [stderr]   |
Dec 18 08:22:27.361 INFO [stderr] 4 | use std::cmp;
Dec 18 08:22:27.361 INFO [stderr]   |     ^^^^^^^^
Dec 18 08:22:27.361 INFO [stderr] 
Dec 18 08:22:27.361 INFO [stderr] warning: unused import: `std::cmp`
Dec 18 08:22:27.361 INFO [stderr]  --> src/prover.rs:5:5
Dec 18 08:22:27.361 INFO [stderr]   |
Dec 18 08:22:27.361 INFO [stderr] 5 | use std::cmp;
Dec 18 08:22:27.361 INFO [stderr]   |     ^^^^^^^^
Dec 18 08:22:27.361 INFO [stderr] 
Dec 18 08:22:27.361 INFO [stderr] warning: unused import: `Sha3_256`
Dec 18 08:22:27.361 INFO [stderr]  --> src/prover.rs:6:26
Dec 18 08:22:27.361 INFO [stderr]   |
Dec 18 08:22:27.361 INFO [stderr] 6 | use self::sha3::{Digest, Sha3_256};
Dec 18 08:22:27.361 INFO [stderr]   |                          ^^^^^^^^
Dec 18 08:22:27.361 INFO [stderr] 
Dec 18 08:22:27.361 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 18 08:22:27.361 INFO [stderr]   --> src/prover.rs:93:16
Dec 18 08:22:27.361 INFO [stderr]    |
Dec 18 08:22:27.361 INFO [stderr] 93 |             if (i != self.problem.partition_sizes.len() - 1) {
Dec 18 08:22:27.361 INFO [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 08:22:27.361 INFO [stderr]    |
Dec 18 08:22:27.361 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 08:22:27.361 INFO [stderr] 
Dec 18 08:22:27.361 INFO [stderr] warning: unused import: `thread_rng`
Dec 18 08:22:27.361 INFO [stderr]  --> src/verifier.rs:3:12
Dec 18 08:22:27.361 INFO [stderr]   |
Dec 18 08:22:27.361 INFO [stderr] 3 | use rand::{thread_rng, Rng, SeedableRng, StdRng};
Dec 18 08:22:27.361 INFO [stderr]   |            ^^^^^^^^^^
Dec 18 08:22:27.361 INFO [stderr] 
Dec 18 08:22:27.527 INFO [stderr] warning: unused import: `Digest`
Dec 18 08:22:27.527 INFO [stderr]  --> src/prover.rs:6:18
Dec 18 08:22:27.527 INFO [stderr]   |
Dec 18 08:22:27.527 INFO [stderr] 6 | use self::sha3::{Digest, Sha3_256};
Dec 18 08:22:27.527 INFO [stderr]   |                  ^^^^^^
Dec 18 08:22:27.527 INFO [stderr] 
Dec 18 08:22:27.527 INFO [stderr] warning: unused import: `Digest`
Dec 18 08:22:27.527 INFO [stderr]  --> src/prover.rs:6:18
Dec 18 08:22:27.527 INFO [stderr]   |
Dec 18 08:22:27.527 INFO [stderr] 6 | use self::sha3::{Digest, Sha3_256};
Dec 18 08:22:27.527 INFO [stderr]   |                  ^^^^^^
Dec 18 08:22:27.527 INFO [stderr] 
Dec 18 08:22:27.532 INFO [stderr] warning: unused variable: `abs_val`
Dec 18 08:22:27.532 INFO [stderr]   --> src/verifier.rs:29:13
Dec 18 08:22:27.532 INFO [stderr]    |
Dec 18 08:22:27.532 INFO [stderr] 29 |         let abs_val = (proof.merkle_proof_1.value - proof.merkle_proof_2.value).abs();
Dec 18 08:22:27.532 INFO [stderr]    |             ^^^^^^^ help: consider using `_abs_val` instead
Dec 18 08:22:27.532 INFO [stderr]    |
Dec 18 08:22:27.532 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:22:27.532 INFO [stderr] 
Dec 18 08:22:27.532 INFO [stderr] warning: unused variable: `abs_problem`
Dec 18 08:22:27.532 INFO [stderr]   --> src/verifier.rs:30:13
Dec 18 08:22:27.532 INFO [stderr]    |
Dec 18 08:22:27.532 INFO [stderr] 30 |         let abs_problem = problem[query_idx].abs();
Dec 18 08:22:27.532 INFO [stderr]    |             ^^^^^^^^^^^ help: consider using `_abs_problem` instead
Dec 18 08:22:27.532 INFO [stderr] 
Dec 18 08:22:27.532 INFO [stderr] warning: unused variable: `i`
Dec 18 08:22:27.533 INFO [stderr]   --> src/prover.rs:49:17
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 49 |         for mut i in 0..num_queries {
Dec 18 08:22:27.533 INFO [stderr]    |                 ^ help: consider using `_i` instead
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:27.533 INFO [stderr] warning: unused variable: `i`
Dec 18 08:22:27.533 INFO [stderr]   --> src/merkle.rs:32:13
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 32 |         for i in 0..next_pow_2 {
Dec 18 08:22:27.533 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:27.533 INFO [stderr] warning: unused variable: `value`
Dec 18 08:22:27.533 INFO [stderr]   --> src/merkle.rs:58:17
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 58 |         for (i, value) in leaf_node_data.iter().enumerate().rev() {
Dec 18 08:22:27.533 INFO [stderr]    |                 ^^^^^ help: consider using `_value` instead
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:27.533 INFO [stderr] warning: unused variable: `hasher`
Dec 18 08:22:27.533 INFO [stderr]   --> src/merkle.rs:61:25
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 61 |                 let mut hasher = Sha3_256::new();                   
Dec 18 08:22:27.533 INFO [stderr]    |                         ^^^^^^ help: consider using `_hasher` instead
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:27.533 INFO [stderr] warning: unused variable: `abs_val`
Dec 18 08:22:27.533 INFO [stderr]   --> src/verifier.rs:29:13
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 29 |         let abs_val = (proof.merkle_proof_1.value - proof.merkle_proof_2.value).abs();
Dec 18 08:22:27.533 INFO [stderr]    |             ^^^^^^^ help: consider using `_abs_val` instead
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:27.533 INFO [stderr] warning: unused variable: `abs_problem`
Dec 18 08:22:27.533 INFO [stderr]   --> src/verifier.rs:30:13
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 30 |         let abs_problem = problem[query_idx].abs();
Dec 18 08:22:27.533 INFO [stderr]    |             ^^^^^^^^^^^ help: consider using `_abs_problem` instead
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:27.533 INFO [stderr] warning: unused variable: `i`
Dec 18 08:22:27.533 INFO [stderr]   --> src/prover.rs:49:17
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 49 |         for mut i in 0..num_queries {
Dec 18 08:22:27.533 INFO [stderr]    |                 ^ help: consider using `_i` instead
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:27.533 INFO [stderr] warning: unused variable: `i`
Dec 18 08:22:27.533 INFO [stderr]   --> src/merkle.rs:32:13
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 32 |         for i in 0..next_pow_2 {
Dec 18 08:22:27.533 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:27.533 INFO [stderr] warning: unused variable: `value`
Dec 18 08:22:27.533 INFO [stderr]   --> src/merkle.rs:58:17
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 58 |         for (i, value) in leaf_node_data.iter().enumerate().rev() {
Dec 18 08:22:27.533 INFO [stderr]    |                 ^^^^^ help: consider using `_value` instead
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:27.533 INFO [stderr] warning: unused variable: `hasher`
Dec 18 08:22:27.533 INFO [stderr]   --> src/merkle.rs:61:25
Dec 18 08:22:27.533 INFO [stderr]    |
Dec 18 08:22:27.533 INFO [stderr] 61 |                 let mut hasher = Sha3_256::new();                   
Dec 18 08:22:27.533 INFO [stderr]    |                         ^^^^^^ help: consider using `_hasher` instead
Dec 18 08:22:27.533 INFO [stderr] 
Dec 18 08:22:28.030 INFO [stderr] warning: unused imports: `merkle`, `prover`
Dec 18 08:22:28.030 INFO [stderr]  --> src/main.rs:4:19
Dec 18 08:22:28.030 INFO [stderr]   |
Dec 18 08:22:28.030 INFO [stderr] 4 | use zkpartition::{merkle, prover, problem};
Dec 18 08:22:28.030 INFO [stderr]   |                   ^^^^^^  ^^^^^^
Dec 18 08:22:28.030 INFO [stderr]   |
Dec 18 08:22:28.030 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:22:28.030 INFO [stderr] 
Dec 18 08:22:28.048 INFO [stderr] warning: unused variable: `config`
Dec 18 08:22:28.048 INFO [stderr]   --> src/main.rs:19:9
Dec 18 08:22:28.048 INFO [stderr]    |
Dec 18 08:22:28.048 INFO [stderr] 19 |     let config = problem::PartictionProblem::new(&problem, &assignment).unwrap_or_else(|err| {
Dec 18 08:22:28.048 INFO [stderr]    |         ^^^^^^ help: consider using `_config` instead
Dec 18 08:22:28.048 INFO [stderr]    |
Dec 18 08:22:28.048 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:22:28.048 INFO [stderr] 
Dec 18 08:22:28.076 INFO [stderr] warning: unused imports: `merkle`, `prover`
Dec 18 08:22:28.076 INFO [stderr]  --> src/main.rs:4:19
Dec 18 08:22:28.076 INFO [stderr]   |
Dec 18 08:22:28.076 INFO [stderr] 4 | use zkpartition::{merkle, prover, problem};
Dec 18 08:22:28.076 INFO [stderr]   |                   ^^^^^^  ^^^^^^
Dec 18 08:22:28.076 INFO [stderr]   |
Dec 18 08:22:28.076 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:22:28.076 INFO [stderr] 
Dec 18 08:22:28.107 INFO [stderr] warning: unused variable: `config`
Dec 18 08:22:28.107 INFO [stderr]   --> src/main.rs:19:9
Dec 18 08:22:28.107 INFO [stderr]    |
Dec 18 08:22:28.107 INFO [stderr] 19 |     let config = problem::PartictionProblem::new(&problem, &assignment).unwrap_or_else(|err| {
Dec 18 08:22:28.107 INFO [stderr]    |         ^^^^^^ help: consider using `_config` instead
Dec 18 08:22:28.107 INFO [stderr]    |
Dec 18 08:22:28.107 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:22:28.107 INFO [stderr] 
Dec 18 08:22:28.147 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
Dec 18 08:22:28.589 INFO running `"docker" "inspect" "0e1f98985d37561739a0e25365124c0d127d3d827efe63e1e246856f940a9a18"`
Dec 18 08:22:28.802 INFO running `"docker" "rm" "-f" "0e1f98985d37561739a0e25365124c0d127d3d827efe63e1e246856f940a9a18"`
Dec 18 08:22:28.917 INFO [stdout] 0e1f98985d37561739a0e25365124c0d127d3d827efe63e1e246856f940a9a18