[INFO] cloning repository https://github.com/KimiWu123/halo2_examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KimiWu123/halo2_examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKimiWu123%2Fhalo2_examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKimiWu123%2Fhalo2_examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ba48ecd7ff7892e67eb331ec6986dcae7439c5d
[INFO] checking KimiWu123/halo2_examples against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKimiWu123%2Fhalo2_examples" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KimiWu123/halo2_examples on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KimiWu123/halo2_examples
[INFO] finished tweaking git repo https://github.com/KimiWu123/halo2_examples
[INFO] tweaked toml for git repo https://github.com/KimiWu123/halo2_examples written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KimiWu123/halo2_examples 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded num_cpus v1.14.0
[INFO] [stderr]   Downloaded rayon-core v1.10.1
[INFO] [stderr]   Downloaded pasta_curves v0.4.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.13
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.14
[INFO] [stderr]   Downloaded rayon v1.6.1
[INFO] [stderr]   Downloaded halo2_proofs v0.1.0
[INFO] [stderr]   Downloaded ucd-trie v0.1.5
[INFO] [stderr]   Downloaded bytemuck v1.12.3
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.2
[INFO] [stderr]   Downloaded pest v2.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5c8c9d4e0bec98613b45ec23a9646eaf135f88ad7df4873664f4dea7ce7c009
[INFO] running `Command { std: "docker" "start" "-a" "f5c8c9d4e0bec98613b45ec23a9646eaf135f88ad7df4873664f4dea7ce7c009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5c8c9d4e0bec98613b45ec23a9646eaf135f88ad7df4873664f4dea7ce7c009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c8c9d4e0bec98613b45ec23a9646eaf135f88ad7df4873664f4dea7ce7c009", kill_on_drop: false }`
[INFO] [stdout] f5c8c9d4e0bec98613b45ec23a9646eaf135f88ad7df4873664f4dea7ce7c009
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0547368f6bd3cc4b0fc9f816cd36897b3d77af9d4c1ef7128a210d819a0fb3cc
[INFO] running `Command { std: "docker" "start" "-a" "0547368f6bd3cc4b0fc9f816cd36897b3d77af9d4c1ef7128a210d819a0fb3cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking blake2b_simd v1.0.0
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking num_cpus v1.14.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking rayon v1.6.1
[INFO] [stderr]     Checking ff v0.12.1
[INFO] [stderr]     Checking group v0.12.1
[INFO] [stderr]     Checking pasta_curves v0.4.1
[INFO] [stderr]     Checking halo2_proofs v0.1.0
[INFO] [stderr]     Checking fibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `prover`
[INFO] [stdout]    --> src/fibonacci/example1.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let prover = MockProver::run(k, &circuit, vec![public_input.clone()]).unwrap();
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prover`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prover`
[INFO] [stdout]    --> src/fibonacci/example2.rs:189:13
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let prover = MockProver::run(k, &circuit, vec![public_input.clone()]).unwrap();
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prover`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.40s
[INFO] running `Command { std: "docker" "inspect" "0547368f6bd3cc4b0fc9f816cd36897b3d77af9d4c1ef7128a210d819a0fb3cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0547368f6bd3cc4b0fc9f816cd36897b3d77af9d4c1ef7128a210d819a0fb3cc", kill_on_drop: false }`
[INFO] [stdout] 0547368f6bd3cc4b0fc9f816cd36897b3d77af9d4c1ef7128a210d819a0fb3cc
[INFO] checking KimiWu123/halo2_examples against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKimiWu123%2Fhalo2_examples" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KimiWu123/halo2_examples on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KimiWu123/halo2_examples
[INFO] finished tweaking git repo https://github.com/KimiWu123/halo2_examples
[INFO] tweaked toml for git repo https://github.com/KimiWu123/halo2_examples written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KimiWu123/halo2_examples 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac5880bb85a3ed712282af7bac026c138370054b057bbb3e185d964d908ebde9
[INFO] running `Command { std: "docker" "start" "-a" "ac5880bb85a3ed712282af7bac026c138370054b057bbb3e185d964d908ebde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac5880bb85a3ed712282af7bac026c138370054b057bbb3e185d964d908ebde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac5880bb85a3ed712282af7bac026c138370054b057bbb3e185d964d908ebde9", kill_on_drop: false }`
[INFO] [stdout] ac5880bb85a3ed712282af7bac026c138370054b057bbb3e185d964d908ebde9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60384dceb68320db7cdf46c3d347091107e66c36bba67b0ed14a2eb1c53f143e
[INFO] running `Command { std: "docker" "start" "-a" "60384dceb68320db7cdf46c3d347091107e66c36bba67b0ed14a2eb1c53f143e", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking blake2b_simd v1.0.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking num_cpus v1.14.0
[INFO] [stderr]     Checking rayon v1.6.1
[INFO] [stderr]     Checking ff v0.12.1
[INFO] [stderr]     Checking group v0.12.1
[INFO] [stderr]     Checking pasta_curves v0.4.1
[INFO] [stderr]     Checking halo2_proofs v0.1.0
[INFO] [stderr]     Checking fibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `prover`
[INFO] [stdout]    --> src/fibonacci/example1.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let prover = MockProver::run(k, &circuit, vec![public_input.clone()]).unwrap();
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prover`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prover`
[INFO] [stdout]    --> src/fibonacci/example2.rs:189:13
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let prover = MockProver::run(k, &circuit, vec![public_input.clone()]).unwrap();
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prover`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.51s
[INFO] running `Command { std: "docker" "inspect" "60384dceb68320db7cdf46c3d347091107e66c36bba67b0ed14a2eb1c53f143e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60384dceb68320db7cdf46c3d347091107e66c36bba67b0ed14a2eb1c53f143e", kill_on_drop: false }`
[INFO] [stdout] 60384dceb68320db7cdf46c3d347091107e66c36bba67b0ed14a2eb1c53f143e