[INFO] cloning repository https://github.com/tyshkor/halo2-exponentiation [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tyshkor/halo2-exponentiation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyshkor%2Fhalo2-exponentiation", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyshkor%2Fhalo2-exponentiation'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] acf81762f378da470720f14724e5e04e72dd861f [INFO] checking tyshkor/halo2-exponentiation against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyshkor%2Fhalo2-exponentiation" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/tyshkor/halo2-exponentiation [INFO] finished tweaking git repo https://github.com/tyshkor/halo2-exponentiation [INFO] tweaked toml for git repo https://github.com/tyshkor/halo2-exponentiation written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/tyshkor/halo2-exponentiation on toolchain 8a0378607d6b34c242e3bfa75554871be641864b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/tyshkor/halo2-exponentiation 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" "+8a0378607d6b34c242e3bfa75554871be641864b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating git repository `https://github.com/zcash/halo2.git` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking tyshkor/halo2-exponentiation against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyshkor%2Fhalo2-exponentiation" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/tyshkor/halo2-exponentiation [INFO] finished tweaking git repo https://github.com/tyshkor/halo2-exponentiation [INFO] tweaked toml for git repo https://github.com/tyshkor/halo2-exponentiation written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/tyshkor/halo2-exponentiation on toolchain 8a0378607d6b34c242e3bfa75554871be641864b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/tyshkor/halo2-exponentiation 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" "+8a0378607d6b34c242e3bfa75554871be641864b" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 55fb768879aeb37aaf363bc9de3259570aebba81a4b35ca08e883670d93c0755 [INFO] running `Command { std: "docker" "start" "-a" "55fb768879aeb37aaf363bc9de3259570aebba81a4b35ca08e883670d93c0755", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "55fb768879aeb37aaf363bc9de3259570aebba81a4b35ca08e883670d93c0755", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55fb768879aeb37aaf363bc9de3259570aebba81a4b35ca08e883670d93c0755", kill_on_drop: false }` [INFO] [stdout] 55fb768879aeb37aaf363bc9de3259570aebba81a4b35ca08e883670d93c0755 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c9688af66597d0ae38bf613f04648b9fc831d4ccaedd455dd34a90b215c7d5f5 [INFO] running `Command { std: "docker" "start" "-a" "c9688af66597d0ae38bf613f04648b9fc831d4ccaedd455dd34a90b215c7d5f5", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Checking funty v2.0.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Checking subtle v2.4.1 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Checking arrayvec v0.7.2 [INFO] [stderr] Checking constant_time_eq v0.1.5 [INFO] [stderr] Checking arrayref v0.3.6 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking wyz v0.5.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking blake2b_simd v1.0.0 [INFO] [stderr] Checking bitvec v1.0.0 [INFO] [stderr] Checking crossbeam-channel v0.5.4 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [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 (https://github.com/zcash/halo2.git?rev=a898d65ae3ad3d41987666f6a03cfc15edae01c4#a898d65a) [INFO] [stderr] Checking halo2_exponentiation v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/lib.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 10 | struct ExponentiationConfig { [INFO] [stdout] | -------------------- fields in this struct [INFO] [stdout] 11 | // column for intermediate values of y [INFO] [stdout] 12 | pub col_y: Column, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 13 | // column for powers of base x ^ (2 ^ row) [INFO] [stdout] 14 | pub col_x: Column, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 15 | // column for bitwise representation of `n` [INFO] [stdout] 16 | pub col_n: Column, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 17 | // column for bitwise representation of `n` accumulator [INFO] [stdout] 18 | pub col_n_acc: Column, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 19 | // column for fixed powers of 2 [INFO] [stdout] 20 | pub const_2_power_col: Column, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] 21 | // selector for the only gate [INFO] [stdout] 22 | pub selector: Selector, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub instance: Column, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ExponentiationConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ExponentiationChip` is never constructed [INFO] [stdout] --> src/lib.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | struct ExponentiationChip { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `construct`, `configure`, `assign`, and `expose_public` are never used [INFO] [stdout] --> src/lib.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 37 | impl ExponentiationChip { [INFO] [stdout] | --------------------------------------- associated items in this implementation [INFO] [stdout] 38 | pub fn construct(config: ExponentiationConfig) -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn configure(meta: &mut ConstraintSystem) -> ExponentiationConfig { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 125 | pub fn assign( [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 240 | pub fn expose_public( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MyCircuit` is never constructed [INFO] [stdout] --> src/lib.rs:251:8 [INFO] [stdout] | [INFO] [stdout] 251 | struct MyCircuit(PhantomData); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.01s [INFO] running `Command { std: "docker" "inspect" "c9688af66597d0ae38bf613f04648b9fc831d4ccaedd455dd34a90b215c7d5f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9688af66597d0ae38bf613f04648b9fc831d4ccaedd455dd34a90b215c7d5f5", kill_on_drop: false }` [INFO] [stdout] c9688af66597d0ae38bf613f04648b9fc831d4ccaedd455dd34a90b215c7d5f5