[INFO] cloning repository https://github.com/HunterChan-SR/fk_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HunterChan-SR/fk_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHunterChan-SR%2Ffk_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHunterChan-SR%2Ffk_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72949bc072c3ca35b9841bd0a2c228df4e64a524
[INFO] testing HunterChan-SR/fk_rs against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHunterChan-SR%2Ffk_rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/HunterChan-SR/fk_rs
[INFO] finished tweaking git repo https://github.com/HunterChan-SR/fk_rs
[INFO] tweaked toml for git repo https://github.com/HunterChan-SR/fk_rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/HunterChan-SR/fk_rs on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/HunterChan-SR/fk_rs 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 769fb0550c7a01c2fb7ba30a9f402beffb04eab62090a90e6a1bd51619bf097c
[INFO] running `Command { std: "docker" "start" "-a" "769fb0550c7a01c2fb7ba30a9f402beffb04eab62090a90e6a1bd51619bf097c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "769fb0550c7a01c2fb7ba30a9f402beffb04eab62090a90e6a1bd51619bf097c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769fb0550c7a01c2fb7ba30a9f402beffb04eab62090a90e6a1bd51619bf097c", kill_on_drop: false }`
[INFO] [stdout] 769fb0550c7a01c2fb7ba30a9f402beffb04eab62090a90e6a1bd51619bf097c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a456737af8892ee28185604a48fbc35f4afcb92402f7f7d1e9a6b57cf809504e
[INFO] running `Command { std: "docker" "start" "-a" "a456737af8892ee28185604a48fbc35f4afcb92402f7f7d1e9a6b57cf809504e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling zerocopy v0.7.34
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-bigint v0.4.5
[INFO] [stderr]    Compiling ark-std v0.4.0
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling ark-serialize-derive v0.4.2
[INFO] [stderr]    Compiling ark-ff-macros v0.4.2
[INFO] [stderr]    Compiling ark-ff-asm v0.4.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-serialize v0.4.2
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling ark-ff v0.4.2
[INFO] [stderr]    Compiling ark-poly v0.4.2
[INFO] [stderr]    Compiling ark-relations v0.4.0
[INFO] [stderr]    Compiling ark-snark v0.4.0
[INFO] [stderr]    Compiling ark-ec v0.4.2
[INFO] [stderr]    Compiling ark-r1cs-std v0.4.0
[INFO] [stderr]    Compiling ark-bls12-381 v0.4.0
[INFO] [stderr]    Compiling ark-ed-on-bls12-381 v0.4.0
[INFO] [stderr]    Compiling ark-crypto-primitives v0.4.0
[INFO] [stderr]    Compiling ark-groth16 v0.4.0
[INFO] [stderr]    Compiling fk_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CRHGadget`
[INFO] [stdout]  --> src/poseidon_merkle.rs:1:57
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ark_crypto_primitives::crh::poseidon::constraints::{CRHGadget, CRHParametersVar, TwoToOneCRHGadget};
[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 import: `AllocatedFp`
[INFO] [stdout]  --> src/poseidon_merkle.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fields::fp::{AllocatedFp, FpVar},
[INFO] [stdout]   |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ConstraintSystem` and `Namespace`
[INFO] [stdout]   --> src/poseidon_merkle.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ark_crypto_primitives::crh::sha256::digest::consts::U8`
[INFO] [stdout]  --> src/sha256_merkle.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ark_crypto_primitives::crh::sha256::digest::consts::U8;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ConstraintSystem` and `Namespace`
[INFO] [stdout]  --> src/sha256_merkle.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ConstraintSystem`
[INFO] [stdout]  --> src/constraints.rs:1:87
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ark_relations::r1cs::{SynthesisError, ConstraintSynthesizer, ConstraintSystemRef, ConstraintSystem};
[INFO] [stdout]   |                                                                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]  --> src/constraints.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::Instant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ark_crypto_primitives::snark::SNARK`
[INFO] [stdout]  --> src/constraints.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ark_crypto_primitives::snark::SNARK;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ark_groth16::Groth16`
[INFO] [stdout]  --> src/constraints.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ark_groth16::Groth16;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SeedableRng` and `rngs::StdRng`
[INFO] [stdout]  --> src/constraints.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{rngs::StdRng, SeedableRng};
[INFO] [stdout]   |            ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Bls12_381` and `FrConfig`
[INFO] [stdout]  --> src/constraints.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use ark_bls12_381::{Bls12_381, Fr, FrConfig};
[INFO] [stdout]   |                     ^^^^^^^^^      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ark_crypto_primitives::crh::CRHScheme`
[INFO] [stdout]  --> src/constraints.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ark_crypto_primitives::crh::CRHScheme;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]   --> src/poseidon_merkle.rs:12:66
[INFO] [stdout]    |
[INFO] [stdout] 12 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stdout]    |                                                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CRHSchemeGadget`
[INFO] [stdout]  --> src/poseidon_merkle.rs:3:45
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ark_crypto_primitives::crh::{CRHScheme, CRHSchemeGadget};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]  --> src/sha256_merkle.rs:8:66
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stdout]   |                                                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/poseidon_merkle.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut leaf_count = 2u32.pow(depth as u32);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/poseidon_merkle.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for i in 0..leaf_count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sha256_merkle.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut leaf_count = 2u32.pow(depth as u32);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/sha256_merkle.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         for i in 0..leaf_count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MerkleTree` is never constructed
[INFO] [stdout]   --> src/poseidon_merkle.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct MerkleTree {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MerklePath` is never constructed
[INFO] [stdout]   --> src/poseidon_merkle.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct MerklePath {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_root`, `get_h_leaf`, `get_poof`, and `zk_verify` are never used
[INFO] [stdout]    --> src/poseidon_merkle.rs:28:12
[INFO] [stdout]     |
[INFO] [stdout]  27 | impl MerkleTree {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout]  28 |     pub fn new(depth: u8) -> MerkleTree {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  90 |     pub fn get_root(&self) -> Fr {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn get_h_leaf(&self, index: usize) -> Fr {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |     pub fn get_poof(&self, index: u32) -> MerklePath {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub fn zk_verify(cs: ConstraintSystemRef<Fr>, params: PoseidonConfig<Fr>, root: Fr, h_leaf: Fr, poof: MerklePath) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MerkleTree` is never constructed
[INFO] [stdout]   --> src/sha256_merkle.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct MerkleTree {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MerklePath` is never constructed
[INFO] [stdout]   --> src/sha256_merkle.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct MerklePath {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_root`, `get_h_leaf`, `get_poof`, and `zk_verify` are never used
[INFO] [stdout]   --> src/sha256_merkle.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl MerkleTree {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 25 |     pub fn new(depth: u8) -> MerkleTree {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn get_root(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn get_h_leaf(&self, index: usize) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn get_poof(&self, index: u32) -> MerklePath {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn zk_verify(cs: ConstraintSystemRef<Fr>, root: Vec<u8>, h_leaf: Vec<u8>, poof: MerklePath) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circuit` is never constructed
[INFO] [stdout]   --> src/constraints.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Circuit {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.69s
[INFO] running `Command { std: "docker" "inspect" "a456737af8892ee28185604a48fbc35f4afcb92402f7f7d1e9a6b57cf809504e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a456737af8892ee28185604a48fbc35f4afcb92402f7f7d1e9a6b57cf809504e", kill_on_drop: false }`
[INFO] [stdout] a456737af8892ee28185604a48fbc35f4afcb92402f7f7d1e9a6b57cf809504e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6e06cf743bf5d284f1f67c754371ac66e88db379f2f4715c279d4748f239d89
[INFO] running `Command { std: "docker" "start" "-a" "c6e06cf743bf5d284f1f67c754371ac66e88db379f2f4715c279d4748f239d89", kill_on_drop: false }`
[INFO] [stderr]    Compiling fk_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CRHGadget`
[INFO] [stdout]  --> src/poseidon_merkle.rs:1:57
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ark_crypto_primitives::crh::poseidon::constraints::{CRHGadget, CRHParametersVar, TwoToOneCRHGadget};
[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 import: `AllocatedFp`
[INFO] [stdout]  --> src/poseidon_merkle.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fields::fp::{AllocatedFp, FpVar},
[INFO] [stdout]   |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Namespace`
[INFO] [stdout]   --> src/poseidon_merkle.rs:12:73
[INFO] [stdout]    |
[INFO] [stdout] 12 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stdout]    |                                                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ark_crypto_primitives::crh::sha256::digest::consts::U8`
[INFO] [stdout]  --> src/sha256_merkle.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ark_crypto_primitives::crh::sha256::digest::consts::U8;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Namespace`
[INFO] [stdout]  --> src/sha256_merkle.rs:8:73
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stdout]   |                                                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FrConfig`
[INFO] [stdout]  --> src/constraints.rs:7:36
[INFO] [stdout]   |
[INFO] [stdout] 7 | use ark_bls12_381::{Bls12_381, Fr, FrConfig};
[INFO] [stdout]   |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ark_crypto_primitives::crh::CRHScheme`
[INFO] [stdout]  --> src/constraints.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ark_crypto_primitives::crh::CRHScheme;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]   --> src/poseidon_merkle.rs:12:66
[INFO] [stdout]    |
[INFO] [stdout] 12 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stdout]    |                                                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CRHSchemeGadget`
[INFO] [stdout]  --> src/poseidon_merkle.rs:3:45
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ark_crypto_primitives::crh::{CRHScheme, CRHSchemeGadget};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]  --> src/sha256_merkle.rs:8:66
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stdout]   |                                                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/poseidon_merkle.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut leaf_count = 2u32.pow(depth as u32);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/poseidon_merkle.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         for i in 0..leaf_count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sha256_merkle.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut leaf_count = 2u32.pow(depth as u32);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/sha256_merkle.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         for i in 0..leaf_count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cs`
[INFO] [stdout]   --> src/constraints.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let cs = ConstraintSystem::<Fr>::new_ref();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.12s
[INFO] running `Command { std: "docker" "inspect" "c6e06cf743bf5d284f1f67c754371ac66e88db379f2f4715c279d4748f239d89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6e06cf743bf5d284f1f67c754371ac66e88db379f2f4715c279d4748f239d89", kill_on_drop: false }`
[INFO] [stdout] c6e06cf743bf5d284f1f67c754371ac66e88db379f2f4715c279d4748f239d89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d3f2012e313ab9a659daae6eb587e37ba5e9296311b9278d7afe4ccd2e7010d7
[INFO] running `Command { std: "docker" "start" "-a" "d3f2012e313ab9a659daae6eb587e37ba5e9296311b9278d7afe4ccd2e7010d7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `CRHGadget`
[INFO] [stderr]  --> src/poseidon_merkle.rs:1:57
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ark_crypto_primitives::crh::poseidon::constraints::{CRHGadget, CRHParametersVar, TwoToOneCRHGadget};
[INFO] [stderr]   |                                                         ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AllocatedFp`
[INFO] [stderr]  --> src/poseidon_merkle.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fields::fp::{AllocatedFp, FpVar},
[INFO] [stderr]   |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Namespace`
[INFO] [stderr]   --> src/poseidon_merkle.rs:12:73
[INFO] [stderr]    |
[INFO] [stderr] 12 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stderr]    |                                                                         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ark_crypto_primitives::crh::sha256::digest::consts::U8`
[INFO] [stderr]  --> src/sha256_merkle.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ark_crypto_primitives::crh::sha256::digest::consts::U8;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Namespace`
[INFO] [stderr]  --> src/sha256_merkle.rs:8:73
[INFO] [stderr]   |
[INFO] [stderr] 8 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stderr]   |                                                                         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FrConfig`
[INFO] [stderr]  --> src/constraints.rs:7:36
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ark_bls12_381::{Bls12_381, Fr, FrConfig};
[INFO] [stderr]   |                                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ark_crypto_primitives::crh::CRHScheme`
[INFO] [stderr]  --> src/constraints.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use ark_crypto_primitives::crh::CRHScheme;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Field`
[INFO] [stderr]   --> src/poseidon_merkle.rs:12:66
[INFO] [stderr]    |
[INFO] [stderr] 12 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stderr]    |                                                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `CRHSchemeGadget`
[INFO] [stderr]  --> src/poseidon_merkle.rs:3:45
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ark_crypto_primitives::crh::{CRHScheme, CRHSchemeGadget};
[INFO] [stderr]   |                                             ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Field`
[INFO] [stderr]  --> src/sha256_merkle.rs:8:66
[INFO] [stderr]   |
[INFO] [stderr] 8 | use ark_relations::r1cs::{ConstraintSystem, ConstraintSystemRef, Field, Namespace};
[INFO] [stderr]   |                                                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/poseidon_merkle.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut leaf_count = 2u32.pow(depth as u32);
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/poseidon_merkle.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         for i in 0..leaf_count {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/sha256_merkle.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut leaf_count = 2u32.pow(depth as u32);
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/sha256_merkle.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         for i in 0..leaf_count {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cs`
[INFO] [stderr]   --> src/constraints.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let cs = ConstraintSystem::<Fr>::new_ref();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cs`
[INFO] [stderr] 
[INFO] [stderr] warning: `fk_rs` (bin "fk_rs" test) generated 15 warnings (run `cargo fix --bin "fk_rs" -p fk_rs --tests` to apply 12 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fk_rs-abb643c3e71e82c0)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test poseidon_merkle::test_merkle_tree_failure ... FAILED
[INFO] [stdout] test poseidon_merkle::test_merkle_tree_success ... ok
[INFO] [stderr] error: test failed, to rerun pass `--bin fk_rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/fk_rs-abb643c3e71e82c0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "d3f2012e313ab9a659daae6eb587e37ba5e9296311b9278d7afe4ccd2e7010d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f2012e313ab9a659daae6eb587e37ba5e9296311b9278d7afe4ccd2e7010d7", kill_on_drop: false }`
[INFO] [stdout] d3f2012e313ab9a659daae6eb587e37ba5e9296311b9278d7afe4ccd2e7010d7
