[INFO] cloning repository https://github.com/amyzx/arkworks_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amyzx/arkworks_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famyzx%2Farkworks_learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famyzx%2Farkworks_learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3da9be1d7ee3a3f21c4cef2329247985cfa03d33
[INFO] testing amyzx/arkworks_learn 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%2Famyzx%2Farkworks_learn" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amyzx/arkworks_learn 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/amyzx/arkworks_learn
[INFO] finished tweaking git repo https://github.com/amyzx/arkworks_learn
[INFO] tweaked toml for git repo https://github.com/amyzx/arkworks_learn written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/amyzx/arkworks_learn 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.20
[INFO] [stderr]   Downloaded ark-ff-macros v0.2.0
[INFO] [stderr]   Downloaded ark-serialize v0.2.0
[INFO] [stderr]   Downloaded ark-ff-asm v0.2.0
[INFO] [stderr]   Downloaded ark-ff v0.2.0
[INFO] [stderr]   Downloaded libc v0.2.100
[INFO] [stderr]   Downloaded ark-r1cs-std v0.2.0
[INFO] [stderr]   Downloaded ark-poly v0.2.0
[INFO] [stderr]   Downloaded ark-ec v0.2.0
[INFO] [stderr]   Downloaded ark-groth16 v0.2.0
[INFO] [stderr]   Downloaded ark-crypto-primitives v0.2.0
[INFO] [stderr]   Downloaded ark-nonnative-field v0.2.0
[INFO] [stderr]   Downloaded ark-bls12-381 v0.2.0
[INFO] [stderr]   Downloaded ark-snark v0.2.0
[INFO] [stderr]   Downloaded ark-ed-on-bls12-381 v0.2.0
[INFO] [stderr]   Downloaded ark-relations v0.2.0
[INFO] [stderr]   Downloaded ark-std v0.2.0
[INFO] [stderr]   Downloaded ark-serialize-derive v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a54d3900eeeaeab66a22c86be13c79723d9f18d7ead053b6d6a10a9fa2551e4f
[INFO] running `Command { std: "docker" "start" "-a" "a54d3900eeeaeab66a22c86be13c79723d9f18d7ead053b6d6a10a9fa2551e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a54d3900eeeaeab66a22c86be13c79723d9f18d7ead053b6d6a10a9fa2551e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a54d3900eeeaeab66a22c86be13c79723d9f18d7ead053b6d6a10a9fa2551e4f", kill_on_drop: false }`
[INFO] [stdout] a54d3900eeeaeab66a22c86be13c79723d9f18d7ead053b6d6a10a9fa2551e4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47e35047cdbf635e884705c3f488573501ee23304ee3d4e462f929a34486d452
[INFO] running `Command { std: "docker" "start" "-a" "47e35047cdbf635e884705c3f488573501ee23304ee3d4e462f929a34486d452", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling tracing-core v0.1.19
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling blake2 v0.9.1
[INFO] [stderr]    Compiling tracing-subscriber v0.2.20
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling ark-ff v0.2.0
[INFO] [stderr]    Compiling ark-std v0.2.0
[INFO] [stderr]    Compiling ark-serialize-derive v0.2.0
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-ff-asm v0.2.0
[INFO] [stderr]    Compiling ark-ff-macros v0.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling zeroize v1.4.1
[INFO] [stderr]    Compiling ark-serialize v0.2.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling ark-ec v0.2.0
[INFO] [stderr]    Compiling ark-relations v0.2.0
[INFO] [stderr]    Compiling ark-poly v0.2.0
[INFO] [stderr]    Compiling ark-snark v0.2.0
[INFO] [stderr]    Compiling ark-r1cs-std v0.2.0
[INFO] [stderr]    Compiling ark-inner-products v0.1.0 (/opt/rustwide/workdir/ripp/inner_products)
[INFO] [stderr]    Compiling ark-bls12-381 v0.2.0
[INFO] [stderr]    Compiling ark-dh-commitments v0.1.0 (/opt/rustwide/workdir/ripp/dh_commitments)
[INFO] [stderr]    Compiling ark-ed-on-bls12-381 v0.2.0
[INFO] [stderr]    Compiling ark-nonnative-field v0.2.0
[INFO] [stderr]    Compiling ark-crypto-primitives v0.2.0
[INFO] [stderr]    Compiling ark-groth16 v0.2.0
[INFO] [stderr]    Compiling ark-ip-proofs v0.1.0 (/opt/rustwide/workdir/ripp/ip_proofs)
[INFO] [stderr]    Compiling arkworks_learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ark_crypto_primitives::snark::*`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ark_crypto_primitives::snark::*; // import Groth16 library
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_input`
[INFO] [stdout]   --> src/main.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 let x_input = FpVar::<Fq>::new_input(
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w_witness`
[INFO] [stdout]   --> src/main.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 let w_witness = FpVar::<Fq>::new_witness(
[INFO] [stdout]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_w_witness`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.30s
[INFO] running `Command { std: "docker" "inspect" "47e35047cdbf635e884705c3f488573501ee23304ee3d4e462f929a34486d452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47e35047cdbf635e884705c3f488573501ee23304ee3d4e462f929a34486d452", kill_on_drop: false }`
[INFO] [stdout] 47e35047cdbf635e884705c3f488573501ee23304ee3d4e462f929a34486d452
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 93399198f7585cf87f5f8f812deec2a6e80c077dc519ab76660cf25f5e134e41
[INFO] running `Command { std: "docker" "start" "-a" "93399198f7585cf87f5f8f812deec2a6e80c077dc519ab76660cf25f5e134e41", 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] [stderr]    Compiling arkworks_learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ark_crypto_primitives::snark::*`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ark_crypto_primitives::snark::*; // import Groth16 library
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_input`
[INFO] [stdout]   --> src/main.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 let x_input = FpVar::<Fq>::new_input(
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w_witness`
[INFO] [stdout]   --> src/main.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 let w_witness = FpVar::<Fq>::new_witness(
[INFO] [stdout]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_w_witness`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "93399198f7585cf87f5f8f812deec2a6e80c077dc519ab76660cf25f5e134e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93399198f7585cf87f5f8f812deec2a6e80c077dc519ab76660cf25f5e134e41", kill_on_drop: false }`
[INFO] [stdout] 93399198f7585cf87f5f8f812deec2a6e80c077dc519ab76660cf25f5e134e41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 980a0ebd7121ffd5c3a9f45e4596dfd41816add2c8f81610e732111f79424c86
[INFO] running `Command { std: "docker" "start" "-a" "980a0ebd7121ffd5c3a9f45e4596dfd41816add2c8f81610e732111f79424c86", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ark_crypto_primitives::snark::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use ark_crypto_primitives::snark::*; // import Groth16 library
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_input`
[INFO] [stderr]   --> src/main.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 let x_input = FpVar::<Fq>::new_input(
[INFO] [stderr]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w_witness`
[INFO] [stderr]   --> src/main.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let w_witness = FpVar::<Fq>::new_witness(
[INFO] [stderr]    |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_w_witness`
[INFO] [stderr] 
[INFO] [stderr] warning: `arkworks_learn` (bin "arkworks_learn" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arkworks_learn-881c0e55fd22ea27)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/batch_groth16-5c8cc2c9ecfa3b63)
[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" "980a0ebd7121ffd5c3a9f45e4596dfd41816add2c8f81610e732111f79424c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "980a0ebd7121ffd5c3a9f45e4596dfd41816add2c8f81610e732111f79424c86", kill_on_drop: false }`
[INFO] [stdout] 980a0ebd7121ffd5c3a9f45e4596dfd41816add2c8f81610e732111f79424c86