[INFO] cloning repository https://github.com/ShengguangXiao/halo2-json-regex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShengguangXiao/halo2-json-regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShengguangXiao%2Fhalo2-json-regex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShengguangXiao%2Fhalo2-json-regex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9612f99135bc5ff55fb245f23eead8dbcf34800
[INFO] checking ShengguangXiao/halo2-json-regex/f9612f99135bc5ff55fb245f23eead8dbcf34800 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShengguangXiao%2Fhalo2-json-regex" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShengguangXiao/halo2-json-regex on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ShengguangXiao/halo2-json-regex
[INFO] finished tweaking git repo https://github.com/ShengguangXiao/halo2-json-regex
[INFO] tweaked toml for git repo https://github.com/ShengguangXiao/halo2-json-regex written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ShengguangXiao/halo2-json-regex 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06f69ae78181b133ac3e79e7ed5dae07378360de18acce66a11876c56cc1249b
[INFO] running `Command { std: "docker" "start" "-a" "06f69ae78181b133ac3e79e7ed5dae07378360de18acce66a11876c56cc1249b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06f69ae78181b133ac3e79e7ed5dae07378360de18acce66a11876c56cc1249b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f69ae78181b133ac3e79e7ed5dae07378360de18acce66a11876c56cc1249b", kill_on_drop: false }`
[INFO] [stdout] 06f69ae78181b133ac3e79e7ed5dae07378360de18acce66a11876c56cc1249b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fd1927471869ba6fb3cc0a33222955e0b17345fa4ab07d6242a67c9ea4a3fd6
[INFO] running `Command { std: "docker" "start" "-a" "4fd1927471869ba6fb3cc0a33222955e0b17345fa4ab07d6242a67c9ea4a3fd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking arrayvec v0.7.2
[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]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking bitvec v1.0.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking ff v0.12.0
[INFO] [stderr]     Checking group v0.12.0
[INFO] [stderr]     Checking pasta_curves v0.4.0
[INFO] [stderr]     Checking halo2_proofs v0.1.0 (https://github.com/zcash/halo2.git?rev=a898d65ae3ad3d41987666f6a03cfc15edae01c4#a898d65a)
[INFO] [stderr]     Checking halo2-json-regex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Any`, `FailureLocation`, and `VerifyFailure`
[INFO] [stdout]    --> src/halo2_json_regex.rs:187:15
[INFO] [stdout]     |
[INFO] [stdout] 187 |         dev::{FailureLocation, MockProver, VerifyFailure},
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^              ^^^^^^^^^^^^^
[INFO] [stdout] 188 |         pasta::Fp,
[INFO] [stdout] 189 |         plonk::{Any, Circuit},
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RegexConstrained` is never constructed
[INFO] [stdout]   --> src/halo2_json_regex.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct RegexConstrained<F: FieldExt>(AssignedCell<Assigned<F>, F>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RegexCheckConfig` is never constructed
[INFO] [stdout]   --> src/halo2_json_regex.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct RegexCheckConfig<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `split_regex`, `configure`, and `assign` are never used
[INFO] [stdout]    --> src/halo2_json_regex.rs:51:8
[INFO] [stdout]     |
[INFO] [stdout] 50  | impl<F: FieldExt> RegexCheckConfig<F> {
[INFO] [stdout]     | ------------------------------------- associated items in this implementation
[INFO] [stdout] 51  |     fn split_regex(regex: String) -> Vec<Vec<u8>> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     pub fn configure(meta: &mut ConstraintSystem<F>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub fn assign(
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.27s
[INFO] running `Command { std: "docker" "inspect" "4fd1927471869ba6fb3cc0a33222955e0b17345fa4ab07d6242a67c9ea4a3fd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd1927471869ba6fb3cc0a33222955e0b17345fa4ab07d6242a67c9ea4a3fd6", kill_on_drop: false }`
[INFO] [stdout] 4fd1927471869ba6fb3cc0a33222955e0b17345fa4ab07d6242a67c9ea4a3fd6