[INFO] cloning repository https://github.com/hiroism007/halo2_example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hiroism007/halo2_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiroism007%2Fhalo2_example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiroism007%2Fhalo2_example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d6e7c82606e3fa34edcc43bc24f7687ffa403a80 [INFO] building hiroism007/halo2_example against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiroism007%2Fhalo2_example" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hiroism007/halo2_example on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hiroism007/halo2_example [INFO] finished tweaking git repo https://github.com/hiroism007/halo2_example [INFO] tweaked toml for git repo https://github.com/hiroism007/halo2_example written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hiroism007/halo2_example 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/zcash/halo2.git` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 261d1adef14e44fe5fe14c85b7cfee969e5f159ba216665334243c3f035ef54d [INFO] running `Command { std: "docker" "start" "-a" "261d1adef14e44fe5fe14c85b7cfee969e5f159ba216665334243c3f035ef54d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "261d1adef14e44fe5fe14c85b7cfee969e5f159ba216665334243c3f035ef54d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "261d1adef14e44fe5fe14c85b7cfee969e5f159ba216665334243c3f035ef54d", kill_on_drop: false }` [INFO] [stdout] 261d1adef14e44fe5fe14c85b7cfee969e5f159ba216665334243c3f035ef54d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7c920c0b9d308e82f128262187046ea7d8a86410fe090f7f1e5ceaab13246fe9 [INFO] running `Command { std: "docker" "start" "-a" "7c920c0b9d308e82f128262187046ea7d8a86410fe090f7f1e5ceaab13246fe9", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.12 [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.137 [INFO] [stderr] Compiling tap v1.0.1 [INFO] [stderr] Compiling funty v2.0.0 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling wyz v0.5.0 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Compiling subtle v2.4.1 [INFO] [stderr] Compiling constant_time_eq v0.1.5 [INFO] [stderr] Compiling arrayref v0.3.6 [INFO] [stderr] Compiling arrayvec v0.7.2 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling crossbeam-channel v0.5.6 [INFO] [stderr] Compiling blake2b_simd v1.0.0 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.11 [INFO] [stderr] Compiling bitvec v1.0.1 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling static_assertions v1.1.0 [INFO] [stderr] Compiling crossbeam-deque v0.8.2 [INFO] [stderr] Compiling either v1.8.0 [INFO] [stderr] Compiling num_cpus v1.14.0 [INFO] [stderr] Compiling ff v0.12.1 [INFO] [stderr] Compiling group v0.12.1 [INFO] [stderr] Compiling pasta_curves v0.4.1 [INFO] [stderr] Compiling halo2_proofs v0.1.0 (https://github.com/zcash/halo2.git?rev=a898d65ae3ad3d41987666f6a03cfc15edae01c4#a898d65a) [INFO] [stderr] Compiling fibonacci v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `ACell` is never constructed [INFO] [stdout] --> src/example2.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct ACell(AssignedCell); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FiboConfig` is never constructed [INFO] [stdout] --> src/example2.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct FiboConfig { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FiboChip` is never constructed [INFO] [stdout] --> src/example2.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct FiboChip { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `construct`, `configure`, `assign`, and `expose_public` are never used [INFO] [stdout] --> src/example2.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 20 | impl FiboChip { [INFO] [stdout] | ----------------------------- associated items in this implementation [INFO] [stdout] 21 | pub fn construct(config: FiboConfig) -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn configure( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 60 | pub fn assign( [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 111 | pub fn expose_public( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ACell` is never constructed [INFO] [stdout] --> src/example3.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct ACell(AssignedCell); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FiboConfig` is never constructed [INFO] [stdout] --> src/example3.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct FiboConfig { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FiboChip` is never constructed [INFO] [stdout] --> src/example3.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct FiboChip { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `construct`, `configure`, `assign`, and `expose_public` are never used [INFO] [stdout] --> src/example3.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 20 | impl FiboChip { [INFO] [stdout] | ----------------------------- associated items in this implementation [INFO] [stdout] 21 | pub fn construct(config: FiboConfig) -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn configure( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 62 | pub fn assign( [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | pub fn expose_public( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.10s [INFO] running `Command { std: "docker" "inspect" "7c920c0b9d308e82f128262187046ea7d8a86410fe090f7f1e5ceaab13246fe9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c920c0b9d308e82f128262187046ea7d8a86410fe090f7f1e5ceaab13246fe9", kill_on_drop: false }` [INFO] [stdout] 7c920c0b9d308e82f128262187046ea7d8a86410fe090f7f1e5ceaab13246fe9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 513759fc3680871912e1165956791f3cfe0724ca4df6c429bf6630ba07d39fea [INFO] running `Command { std: "docker" "start" "-a" "513759fc3680871912e1165956791f3cfe0724ca4df6c429bf6630ba07d39fea", kill_on_drop: false }` [INFO] [stdout] warning: struct `ACell` is never constructed [INFO] [stdout] --> src/example2.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct ACell(AssignedCell); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FiboConfig` is never constructed [INFO] [stdout] --> src/example2.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct FiboConfig { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FiboChip` is never constructed [INFO] [stdout] --> src/example2.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct FiboChip { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `construct`, `configure`, `assign`, and `expose_public` are never used [INFO] [stdout] --> src/example2.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 20 | impl FiboChip { [INFO] [stdout] | ----------------------------- associated items in this implementation [INFO] [stdout] 21 | pub fn construct(config: FiboConfig) -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn configure( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 60 | pub fn assign( [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 111 | pub fn expose_public( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling fibonacci v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `ACell` is never constructed [INFO] [stdout] --> src/example3.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct ACell(AssignedCell); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FiboConfig` is never constructed [INFO] [stdout] --> src/example3.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | struct FiboConfig { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FiboChip` is never constructed [INFO] [stdout] --> src/example3.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct FiboChip { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `construct`, `configure`, `assign`, and `expose_public` are never used [INFO] [stdout] --> src/example3.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 20 | impl FiboChip { [INFO] [stdout] | ----------------------------- associated items in this implementation [INFO] [stdout] 21 | pub fn construct(config: FiboConfig) -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn configure( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 62 | pub fn assign( [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | pub fn expose_public( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/example3.rs:189:13 [INFO] [stdout] | [INFO] [stdout] 189 | let mut public_input = vec![a, b, out]; [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ACell` is never constructed [INFO] [stdout] --> src/example2.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct ACell(AssignedCell); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ACell` is never constructed [INFO] [stdout] --> src/example3.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct ACell(AssignedCell); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.99s [INFO] running `Command { std: "docker" "inspect" "513759fc3680871912e1165956791f3cfe0724ca4df6c429bf6630ba07d39fea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "513759fc3680871912e1165956791f3cfe0724ca4df6c429bf6630ba07d39fea", kill_on_drop: false }` [INFO] [stdout] 513759fc3680871912e1165956791f3cfe0724ca4df6c429bf6630ba07d39fea