[INFO] cloning repository https://github.com/skardas/MerkleTreeTutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skardas/MerkleTreeTutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskardas%2FMerkleTreeTutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskardas%2FMerkleTreeTutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6516129eb7346dca72ebc3433ca4233133412eb
[INFO] testing skardas/MerkleTreeTutorial against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskardas%2FMerkleTreeTutorial" "/workspace/builds/worker-44/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-44/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/skardas/MerkleTreeTutorial on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/skardas/MerkleTreeTutorial
[INFO] finished tweaking git repo https://github.com/skardas/MerkleTreeTutorial
[INFO] tweaked toml for git repo https://github.com/skardas/MerkleTreeTutorial written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate git repo https://github.com/skardas/MerkleTreeTutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/arkworks-rs/crypto-primitives`
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[INFO] running `Command { std: "docker" "inspect" "4bb5d8cbd6f652e20e634e11ea6ce90993dc2c4c2ba72490dca7e02bf9e9b22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb5d8cbd6f652e20e634e11ea6ce90993dc2c4c2ba72490dca7e02bf9e9b22c", kill_on_drop: false }`
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[INFO] [stdout] 5648f7f68f11b7f7c001a8136a6ee0d2f11123743d7193836d2ee19365c6b161
[INFO] running `Command { std: "docker" "start" "-a" "5648f7f68f11b7f7c001a8136a6ee0d2f11123743d7193836d2ee19365c6b161", kill_on_drop: false }`
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[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling tracing-subscriber v0.2.18
[INFO] [stderr]    Compiling ark-ec v0.2.0
[INFO] [stderr]    Compiling ark-relations v0.2.0
[INFO] [stderr]    Compiling ark-snark v0.2.0
[INFO] [stderr]    Compiling ark-r1cs-std v0.2.0
[INFO] [stderr]    Compiling ark-bls12-381 v0.2.0
[INFO] [stderr]    Compiling ark-nonnative-field v0.2.0
[INFO] [stderr]    Compiling ark-ed-on-bls12-381 v0.2.0
[INFO] [stderr]    Compiling ark-crypto-primitives v0.2.0 (https://github.com/arkworks-rs/crypto-primitives?branch=main#7ec00059)
[INFO] [stderr]    Compiling merkle_tree_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ark_crypto_primitives::crh::CRH`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ark_crypto_primitives::crh::CRH;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ConstraintLayer`, `ConstraintSynthesizer`, `ConstraintSystem`, `TracingMode`
[INFO] [stdout]  --> src/lib.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ark_relations::r1cs::{ConstraintLayer, ConstraintSystem, TracingMode, ConstraintSynthesizer};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::layer::SubscriberExt`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing_subscriber::layer::SubscriberExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::constraints::MTreeVerification`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::constraints::MTreeVerification;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::crypto::digest::Digest`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use self::crypto::digest::Digest;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::crypto::sha3::Sha3`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use self::crypto::sha3::Sha3;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.44s
[INFO] running `Command { std: "docker" "inspect" "5648f7f68f11b7f7c001a8136a6ee0d2f11123743d7193836d2ee19365c6b161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5648f7f68f11b7f7c001a8136a6ee0d2f11123743d7193836d2ee19365c6b161", kill_on_drop: false }`
[INFO] [stdout] 5648f7f68f11b7f7c001a8136a6ee0d2f11123743d7193836d2ee19365c6b161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0309b3f3d48c73e199365970a0a0cc76c1ccd5f0db0d4fbc3ac684460a4a8a1b
[INFO] running `Command { std: "docker" "start" "-a" "0309b3f3d48c73e199365970a0a0cc76c1ccd5f0db0d4fbc3ac684460a4a8a1b", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `ark_crypto_primitives::crh::CRH`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ark_crypto_primitives::crh::CRH;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ConstraintLayer`, `ConstraintSynthesizer`, `ConstraintSystem`, `TracingMode`
[INFO] [stdout]  --> src/lib.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ark_relations::r1cs::{ConstraintLayer, ConstraintSystem, TracingMode, ConstraintSynthesizer};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing_subscriber::layer::SubscriberExt`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing_subscriber::layer::SubscriberExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::constraints::MTreeVerification`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::constraints::MTreeVerification;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::crypto::digest::Digest`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use self::crypto::digest::Digest;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling merkle_tree_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::crypto::sha3::Sha3`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use self::crypto::sha3::Sha3;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "0309b3f3d48c73e199365970a0a0cc76c1ccd5f0db0d4fbc3ac684460a4a8a1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0309b3f3d48c73e199365970a0a0cc76c1ccd5f0db0d4fbc3ac684460a4a8a1b", kill_on_drop: false }`
[INFO] [stdout] 0309b3f3d48c73e199365970a0a0cc76c1ccd5f0db0d4fbc3ac684460a4a8a1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 442c134c520df18e784f684104129a4d880beb41ae221b500d2d84d8d74f191f
[INFO] running `Command { std: "docker" "start" "-a" "442c134c520df18e784f684104129a4d880beb41ae221b500d2d84d8d74f191f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ark_crypto_primitives::crh::CRH`
[INFO] [stderr]  --> src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use ark_crypto_primitives::crh::CRH;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ConstraintLayer`, `ConstraintSynthesizer`, `ConstraintSystem`, `TracingMode`
[INFO] [stderr]  --> src/lib.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ark_relations::r1cs::{ConstraintLayer, ConstraintSystem, TracingMode, ConstraintSynthesizer};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tracing_subscriber::layer::SubscriberExt`
[INFO] [stderr]  --> src/lib.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use tracing_subscriber::layer::SubscriberExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::constraints::MTreeVerification`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::constraints::MTreeVerification;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::crypto::digest::Digest`
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use self::crypto::digest::Digest;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::crypto::sha3::Sha3`
[INFO] [stderr]   --> src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use self::crypto::sha3::Sha3;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `merkle_tree_tutorial` (lib) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/merkle_tree_tutorial-7e8709fce977e9f2)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_merkle_tree ... ok
[INFO] [stdout] test test_merkle_tree_constraints ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.24s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merkle_tree_tutorial
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "442c134c520df18e784f684104129a4d880beb41ae221b500d2d84d8d74f191f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "442c134c520df18e784f684104129a4d880beb41ae221b500d2d84d8d74f191f", kill_on_drop: false }`
[INFO] [stdout] 442c134c520df18e784f684104129a4d880beb41ae221b500d2d84d8d74f191f