[INFO] cloning repository https://github.com/SwaroopReddyBasireddy/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/SwaroopReddyBasireddy/halo2-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwaroopReddyBasireddy%2Fhalo2-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwaroopReddyBasireddy%2Fhalo2-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d939cdeaaebdcf4c88fd20fe4ec766faa041cb13
[INFO] testing SwaroopReddyBasireddy/halo2-examples against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwaroopReddyBasireddy%2Fhalo2-examples" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SwaroopReddyBasireddy/halo2-examples
[INFO] finished tweaking git repo https://github.com/SwaroopReddyBasireddy/halo2-examples
[INFO] tweaked toml for git repo https://github.com/SwaroopReddyBasireddy/halo2-examples written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SwaroopReddyBasireddy/halo2-examples on toolchain beta-2026-01-20
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[INFO] crate git repo https://github.com/SwaroopReddyBasireddy/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" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "2e4d5976bec93b431798d585c4071173700b10b1f1ac5cb244a0cdcef2423e3b", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c521ceacc3d2e685925ebd67d48fb0ab1ae091e6fd6393e2f0cc3993834dcc29
[INFO] running `Command { std: "docker" "start" "-a" "c521ceacc3d2e685925ebd67d48fb0ab1ae091e6fd6393e2f0cc3993834dcc29", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling blake2b_simd v1.0.2
[INFO] [stderr]    Compiling halo2 v0.0.0
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ff v0.13.0
[INFO] [stderr]    Compiling group v0.13.0
[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 tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling halo2_proofs v0.2.0
[INFO] [stderr]    Compiling gadget v0.1.0 (/opt/rustwide/workdir/gadget/IsZero)
[INFO] [stderr]    Compiling fibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `group::ff::Field`
[INFO] [stdout]  --> src/arithmetic/example2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use group::ff::Field;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/arithmetic/example3.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `group::ff::Field`
[INFO] [stdout]  --> src/arithmetic/example3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use group::ff::Field;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AssignedCell`
[INFO] [stdout]  --> src/arithmetic/example3.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use halo2_proofs::circuit::{AssignedCell, Value};
[INFO] [stdout]   |                             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/arithmetic/example3.rs:236:65
[INFO] [stdout]     |
[INFO] [stdout] 236 |                     config.constant.clone(), 2, || Value::known((F::from(5))))?;
[INFO] [stdout]     |                                                                 ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -                     config.constant.clone(), 2, || Value::known((F::from(5))))?;
[INFO] [stdout] 236 +                     config.constant.clone(), 2, || Value::known(F::from(5) ))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/arithmetic/example2.rs:209:57
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn load_private(&self, _layouter: impl Layouter<F>, a: Cell) -> Result<Cell, Error> {
[INFO] [stdout]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layouter`
[INFO] [stdout]    --> src/arithmetic/example2.rs:213:29
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn load_constant(&self, layouter: impl Layouter<F>, constant: F) -> Result<Cell, Error> {
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_layouter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constant`
[INFO] [stdout]    --> src/arithmetic/example2.rs:213:57
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn load_constant(&self, layouter: impl Layouter<F>, constant: F) -> Result<Cell, Error> {
[INFO] [stdout]     |                                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a0`
[INFO] [stdout]    --> src/arithmetic/example2.rs:311:14
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_a0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b0`
[INFO] [stdout]    --> src/arithmetic/example2.rs:311:18
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_b0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c0`
[INFO] [stdout]    --> src/arithmetic/example2.rs:311:22
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stdout]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_c0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a1`
[INFO] [stdout]    --> src/arithmetic/example2.rs:314:14
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let (a1, b1, _c1) = arith_chip.raw_multiply(&mut layouter, || y.map(|y| (y,y,y*y)))?;
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_a1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b1`
[INFO] [stdout]    --> src/arithmetic/example2.rs:314:18
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let (a1, b1, _c1) = arith_chip.raw_multiply(&mut layouter, || y.map(|y| (y,y,y*y)))?;
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_b1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constant`
[INFO] [stdout]    --> src/arithmetic/example3.rs:283:9
[INFO] [stdout]     |
[INFO] [stdout] 283 |     let constant = Fp::from(7);
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FunctionConfig` is never constructed
[INFO] [stdout]  --> src/example_iszero.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct FunctionConfig<F: FieldExt> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FunctionChip` is never constructed
[INFO] [stdout]   --> src/example_iszero.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct FunctionChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `construct`, `configure`, and `assign` are never used
[INFO] [stdout]   --> src/example_iszero.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl <F: FieldExt> FunctionChip<F> {
[INFO] [stdout]    | ---------------------------------- associated items in this implementation
[INFO] [stdout] 23 |     pub fn construct (config: FunctionConfig<F>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn configure(meta: &mut ConstraintSystem<F>) -> FunctionConfig<F>{
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn assign(
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FunctionCircuit` is never constructed
[INFO] [stdout]   --> src/example_iszero.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | struct FunctionCircuit<F> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/example_iszero.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RnageCheckConfig` is never constructed
[INFO] [stdout]   --> src/range_check/example1.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct RnageCheckConfig<F: FieldExt, const RANGE: usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `configure` and `assign` are never used
[INFO] [stdout]   --> src/range_check/example1.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl <F: FieldExt, const RANGE: usize> RnageCheckConfig<F, RANGE> {        
[INFO] [stdout]    | ----------------------------------------------------------------- associated items in this implementation
[INFO] [stdout] 20 |     fn configure(
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn assign(
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ACell` is never constructed
[INFO] [stdout]  --> src/arithmetic/example1.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct ACell<F: FieldExt>(AssignedCell<F, F>);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stdout]   --> src/arithmetic/example1.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct ArithmeticConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticChip` is never constructed
[INFO] [stdout]   --> src/arithmetic/example1.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `construct`, `configure`, `assign_add`, `assign_mul`, and `expose_public` are never used
[INFO] [stdout]    --> src/arithmetic/example1.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout]  23 | impl<F: FieldExt>  ArithmeticChip<F>{
[INFO] [stdout]     | ------------------------------------ associated items in this implementation
[INFO] [stdout]  24 |     pub fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  28 |     pub fn configure(
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub fn assign_add (
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn assign_mul (
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     pub fn expose_public(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticCircuit` is never constructed
[INFO] [stdout]    --> src/arithmetic/example1.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | struct ArithmeticCircuit<F> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/arithmetic/example1.rs:218:4
[INFO] [stdout]     |
[INFO] [stdout] 218 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ArithmeticInstructions` is never used
[INFO] [stdout]   --> src/arithmetic/example2.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait ArithmeticInstructions<F: FieldExt> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stdout]   --> src/arithmetic/example2.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct ArithmeticConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticChip` is never constructed
[INFO] [stdout]   --> src/arithmetic/example2.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `construct` is never used
[INFO] [stdout]   --> src/arithmetic/example2.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl<F: FieldExt> ArithmeticChip<F> {
[INFO] [stdout]    | ----------------------------------- associated function in this implementation
[INFO] [stdout] 97 |     fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]    --> src/arithmetic/example2.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct Number<F: FieldExt>(AssignedCell<F, F>);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticCircuit` is never constructed
[INFO] [stdout]    --> src/arithmetic/example2.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 238 | struct ArithmeticCircuit<F: FieldExt> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/arithmetic/example2.rs:324:8
[INFO] [stdout]     |
[INFO] [stdout] 324 |     fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stdout]   --> src/arithmetic/example3.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct ArithmeticConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticChip` is never constructed
[INFO] [stdout]   --> src/arithmetic/example3.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `construct` and `configure` are never used
[INFO] [stdout]   --> src/arithmetic/example3.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<F: FieldExt> ArithmeticChip<F> {
[INFO] [stdout]    | ----------------------------------- associated functions in this implementation
[INFO] [stdout] 32 |     fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn configure(
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyCircuit` is never constructed
[INFO] [stdout]    --> src/arithmetic/example3.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | struct MyCircuit<F: FieldExt> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/arithmetic/example3.rs:274:4
[INFO] [stdout]     |
[INFO] [stdout] 274 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `PI` should have a snake case name
[INFO] [stdout]   --> src/arithmetic/example2.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     PI: Column<Instance>,
[INFO] [stdout]    |     ^^ help: convert the identifier to snake case: `pi`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.83s
[INFO] running `Command { std: "docker" "inspect" "c521ceacc3d2e685925ebd67d48fb0ab1ae091e6fd6393e2f0cc3993834dcc29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c521ceacc3d2e685925ebd67d48fb0ab1ae091e6fd6393e2f0cc3993834dcc29", kill_on_drop: false }`
[INFO] [stdout] c521ceacc3d2e685925ebd67d48fb0ab1ae091e6fd6393e2f0cc3993834dcc29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a48c8fdea004a2a32ef19b23d871269d27abe37b101061b763d9ed4d5cb2076a
[INFO] running `Command { std: "docker" "start" "-a" "a48c8fdea004a2a32ef19b23d871269d27abe37b101061b763d9ed4d5cb2076a", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `group::ff::Field`
[INFO] [stdout]  --> src/arithmetic/example2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use group::ff::Field;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/arithmetic/example3.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `group::ff::Field`
[INFO] [stdout]  --> src/arithmetic/example3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use group::ff::Field;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AssignedCell`
[INFO] [stdout]  --> src/arithmetic/example3.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use halo2_proofs::circuit::{AssignedCell, Value};
[INFO] [stdout]   |                             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/arithmetic/example3.rs:236:65
[INFO] [stdout]     |
[INFO] [stdout] 236 |                     config.constant.clone(), 2, || Value::known((F::from(5))))?;
[INFO] [stdout]     |                                                                 ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -                     config.constant.clone(), 2, || Value::known((F::from(5))))?;
[INFO] [stdout] 236 +                     config.constant.clone(), 2, || Value::known(F::from(5) ))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/arithmetic/example2.rs:209:57
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn load_private(&self, _layouter: impl Layouter<F>, a: Cell) -> Result<Cell, Error> {
[INFO] [stdout]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layouter`
[INFO] [stdout]    --> src/arithmetic/example2.rs:213:29
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn load_constant(&self, layouter: impl Layouter<F>, constant: F) -> Result<Cell, Error> {
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_layouter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constant`
[INFO] [stdout]    --> src/arithmetic/example2.rs:213:57
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn load_constant(&self, layouter: impl Layouter<F>, constant: F) -> Result<Cell, Error> {
[INFO] [stdout]     |                                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a0`
[INFO] [stdout]    --> src/arithmetic/example2.rs:311:14
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_a0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b0`
[INFO] [stdout]    --> src/arithmetic/example2.rs:311:18
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_b0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c0`
[INFO] [stdout]    --> src/arithmetic/example2.rs:311:22
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stdout]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_c0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a1`
[INFO] [stdout]    --> src/arithmetic/example2.rs:314:14
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let (a1, b1, _c1) = arith_chip.raw_multiply(&mut layouter, || y.map(|y| (y,y,y*y)))?;
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_a1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b1`
[INFO] [stdout]    --> src/arithmetic/example2.rs:314:18
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let (a1, b1, _c1) = arith_chip.raw_multiply(&mut layouter, || y.map(|y| (y,y,y*y)))?;
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_b1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constant`
[INFO] [stdout]    --> src/arithmetic/example3.rs:283:9
[INFO] [stdout]     |
[INFO] [stdout] 283 |     let constant = Fp::from(7);
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FunctionConfig` is never constructed
[INFO] [stdout]  --> src/example_iszero.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct FunctionConfig<F: FieldExt> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FunctionChip` is never constructed
[INFO] [stdout]   --> src/example_iszero.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct FunctionChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `construct`, `configure`, and `assign` are never used
[INFO] [stdout]   --> src/example_iszero.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl <F: FieldExt> FunctionChip<F> {
[INFO] [stdout]    | ---------------------------------- associated items in this implementation
[INFO] [stdout] 23 |     pub fn construct (config: FunctionConfig<F>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn configure(meta: &mut ConstraintSystem<F>) -> FunctionConfig<F>{
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn assign(
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `FunctionCircuit` is never constructed
[INFO] [stdout]   --> src/example_iszero.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | struct FunctionCircuit<F> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/example_iszero.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RnageCheckConfig` is never constructed
[INFO] [stdout]   --> src/range_check/example1.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct RnageCheckConfig<F: FieldExt, const RANGE: usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `configure` and `assign` are never used
[INFO] [stdout]   --> src/range_check/example1.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl <F: FieldExt, const RANGE: usize> RnageCheckConfig<F, RANGE> {        
[INFO] [stdout]    | ----------------------------------------------------------------- associated items in this implementation
[INFO] [stdout] 20 |     fn configure(
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn assign(
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ACell` is never constructed
[INFO] [stdout]  --> src/arithmetic/example1.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct ACell<F: FieldExt>(AssignedCell<F, F>);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stdout]   --> src/arithmetic/example1.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct ArithmeticConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticChip` is never constructed
[INFO] [stdout]   --> src/arithmetic/example1.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `construct`, `configure`, `assign_add`, `assign_mul`, and `expose_public` are never used
[INFO] [stdout]    --> src/arithmetic/example1.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout]  23 | impl<F: FieldExt>  ArithmeticChip<F>{
[INFO] [stdout]     | ------------------------------------ associated items in this implementation
[INFO] [stdout]  24 |     pub fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  28 |     pub fn configure(
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub fn assign_add (
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn assign_mul (
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     pub fn expose_public(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticCircuit` is never constructed
[INFO] [stdout]    --> src/arithmetic/example1.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | struct ArithmeticCircuit<F> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/arithmetic/example1.rs:218:4
[INFO] [stdout]     |
[INFO] [stdout] 218 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ArithmeticInstructions` is never used
[INFO] [stdout]   --> src/arithmetic/example2.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait ArithmeticInstructions<F: FieldExt> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stdout]   --> src/arithmetic/example2.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct ArithmeticConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticChip` is never constructed
[INFO] [stdout]   --> src/arithmetic/example2.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `construct` is never used
[INFO] [stdout]   --> src/arithmetic/example2.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl<F: FieldExt> ArithmeticChip<F> {
[INFO] [stdout]    | ----------------------------------- associated function in this implementation
[INFO] [stdout] 97 |     fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]    --> src/arithmetic/example2.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct Number<F: FieldExt>(AssignedCell<F, F>);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticCircuit` is never constructed
[INFO] [stdout]    --> src/arithmetic/example2.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 238 | struct ArithmeticCircuit<F: FieldExt> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/arithmetic/example2.rs:324:8
[INFO] [stdout]     |
[INFO] [stdout] 324 |     fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stdout]   --> src/arithmetic/example3.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct ArithmeticConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticChip` is never constructed
[INFO] [stdout]   --> src/arithmetic/example3.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `construct` and `configure` are never used
[INFO] [stdout]   --> src/arithmetic/example3.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<F: FieldExt> ArithmeticChip<F> {
[INFO] [stdout]    | ----------------------------------- associated functions in this implementation
[INFO] [stdout] 32 |     fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn configure(
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyCircuit` is never constructed
[INFO] [stdout]    --> src/arithmetic/example3.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | struct MyCircuit<F: FieldExt> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/arithmetic/example3.rs:274:4
[INFO] [stdout]     |
[INFO] [stdout] 274 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `PI` should have a snake case name
[INFO] [stdout]   --> src/arithmetic/example2.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     PI: Column<Instance>,
[INFO] [stdout]    |     ^^ help: convert the identifier to snake case: `pi`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `poly::Rotation` and `self`
[INFO] [stdout]   --> src/range_check/example1.rs:74:41
[INFO] [stdout]    |
[INFO] [stdout] 74 | ...dExt, circuit::{self, *}, dev::{FailureLocation, MockProver, VerifyFailure}, pasta::Fp, plonk::*, poly::Rotation
[INFO] [stdout]    |                    ^^^^                                                                              ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `group::ff::Field`
[INFO] [stdout]  --> src/arithmetic/example2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use group::ff::Field;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/arithmetic/example3.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `group::ff::Field`
[INFO] [stdout]  --> src/arithmetic/example3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use group::ff::Field;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AssignedCell`
[INFO] [stdout]  --> src/arithmetic/example3.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use halo2_proofs::circuit::{AssignedCell, Value};
[INFO] [stdout]   |                             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/arithmetic/example3.rs:236:65
[INFO] [stdout]     |
[INFO] [stdout] 236 |                     config.constant.clone(), 2, || Value::known((F::from(5))))?;
[INFO] [stdout]     |                                                                 ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -                     config.constant.clone(), 2, || Value::known((F::from(5))))?;
[INFO] [stdout] 236 +                     config.constant.clone(), 2, || Value::known(F::from(5) ))?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/arithmetic/example2.rs:209:57
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn load_private(&self, _layouter: impl Layouter<F>, a: Cell) -> Result<Cell, Error> {
[INFO] [stdout]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layouter`
[INFO] [stdout]    --> src/arithmetic/example2.rs:213:29
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn load_constant(&self, layouter: impl Layouter<F>, constant: F) -> Result<Cell, Error> {
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_layouter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constant`
[INFO] [stdout]    --> src/arithmetic/example2.rs:213:57
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn load_constant(&self, layouter: impl Layouter<F>, constant: F) -> Result<Cell, Error> {
[INFO] [stdout]     |                                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a0`
[INFO] [stdout]    --> src/arithmetic/example2.rs:311:14
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_a0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b0`
[INFO] [stdout]    --> src/arithmetic/example2.rs:311:18
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_b0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c0`
[INFO] [stdout]    --> src/arithmetic/example2.rs:311:22
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stdout]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_c0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a1`
[INFO] [stdout]    --> src/arithmetic/example2.rs:314:14
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let (a1, b1, _c1) = arith_chip.raw_multiply(&mut layouter, || y.map(|y| (y,y,y*y)))?;
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_a1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b1`
[INFO] [stdout]    --> src/arithmetic/example2.rs:314:18
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let (a1, b1, _c1) = arith_chip.raw_multiply(&mut layouter, || y.map(|y| (y,y,y*y)))?;
[INFO] [stdout]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_b1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constant`
[INFO] [stdout]    --> src/arithmetic/example3.rs:283:9
[INFO] [stdout]     |
[INFO] [stdout] 283 |     let constant = Fp::from(7);
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/example_iszero.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ACell` is never constructed
[INFO] [stdout]  --> src/arithmetic/example1.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct ACell<F: FieldExt>(AssignedCell<F, F>);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stdout]   --> src/arithmetic/example1.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct ArithmeticConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticChip` is never constructed
[INFO] [stdout]   --> src/arithmetic/example1.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `construct`, `configure`, `assign_add`, `assign_mul`, and `expose_public` are never used
[INFO] [stdout]    --> src/arithmetic/example1.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout]  23 | impl<F: FieldExt>  ArithmeticChip<F>{
[INFO] [stdout]     | ------------------------------------ associated items in this implementation
[INFO] [stdout]  24 |     pub fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  28 |     pub fn configure(
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub fn assign_add (
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn assign_mul (
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     pub fn expose_public(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticCircuit` is never constructed
[INFO] [stdout]    --> src/arithmetic/example1.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | struct ArithmeticCircuit<F> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/arithmetic/example1.rs:218:4
[INFO] [stdout]     |
[INFO] [stdout] 218 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ArithmeticInstructions` is never used
[INFO] [stdout]   --> src/arithmetic/example2.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait ArithmeticInstructions<F: FieldExt> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stdout]   --> src/arithmetic/example2.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct ArithmeticConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticChip` is never constructed
[INFO] [stdout]   --> src/arithmetic/example2.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `construct` is never used
[INFO] [stdout]   --> src/arithmetic/example2.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl<F: FieldExt> ArithmeticChip<F> {
[INFO] [stdout]    | ----------------------------------- associated function in this implementation
[INFO] [stdout] 97 |     fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]    --> src/arithmetic/example2.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct Number<F: FieldExt>(AssignedCell<F, F>);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticCircuit` is never constructed
[INFO] [stdout]    --> src/arithmetic/example2.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 238 | struct ArithmeticCircuit<F: FieldExt> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/arithmetic/example2.rs:324:8
[INFO] [stdout]     |
[INFO] [stdout] 324 |     fn main() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stdout]   --> src/arithmetic/example3.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct ArithmeticConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ArithmeticChip` is never constructed
[INFO] [stdout]   --> src/arithmetic/example3.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `construct` and `configure` are never used
[INFO] [stdout]   --> src/arithmetic/example3.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl<F: FieldExt> ArithmeticChip<F> {
[INFO] [stdout]    | ----------------------------------- associated functions in this implementation
[INFO] [stdout] 32 |     fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn configure(
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyCircuit` is never constructed
[INFO] [stdout]    --> src/arithmetic/example3.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | struct MyCircuit<F: FieldExt> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/arithmetic/example3.rs:274:4
[INFO] [stdout]     |
[INFO] [stdout] 274 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `PI` should have a snake case name
[INFO] [stdout]   --> src/arithmetic/example2.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     PI: Column<Instance>,
[INFO] [stdout]    |     ^^ help: convert the identifier to snake case: `pi`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "a48c8fdea004a2a32ef19b23d871269d27abe37b101061b763d9ed4d5cb2076a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a48c8fdea004a2a32ef19b23d871269d27abe37b101061b763d9ed4d5cb2076a", kill_on_drop: false }`
[INFO] [stdout] a48c8fdea004a2a32ef19b23d871269d27abe37b101061b763d9ed4d5cb2076a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] be5defe7e73631f03575ebf94890219cca803d723cf9a6d0820cd0d870bb3fd0
[INFO] running `Command { std: "docker" "start" "-a" "be5defe7e73631f03575ebf94890219cca803d723cf9a6d0820cd0d870bb3fd0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `group::ff::Field`
[INFO] [stderr]  --> src/arithmetic/example2.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use group::ff::Field;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/arithmetic/example3.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `group::ff::Field`
[INFO] [stderr]  --> src/arithmetic/example3.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use group::ff::Field;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AssignedCell`
[INFO] [stderr]  --> src/arithmetic/example3.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | use halo2_proofs::circuit::{AssignedCell, Value};
[INFO] [stderr]   |                             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/arithmetic/example3.rs:236:65
[INFO] [stderr]     |
[INFO] [stderr] 236 |                     config.constant.clone(), 2, || Value::known((F::from(5))))?;
[INFO] [stderr]     |                                                                 ^          ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 236 -                     config.constant.clone(), 2, || Value::known((F::from(5))))?;
[INFO] [stderr] 236 +                     config.constant.clone(), 2, || Value::known(F::from(5) ))?;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/arithmetic/example2.rs:209:57
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn load_private(&self, _layouter: impl Layouter<F>, a: Cell) -> Result<Cell, Error> {
[INFO] [stderr]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layouter`
[INFO] [stderr]    --> src/arithmetic/example2.rs:213:29
[INFO] [stderr]     |
[INFO] [stderr] 213 |     fn load_constant(&self, layouter: impl Layouter<F>, constant: F) -> Result<Cell, Error> {
[INFO] [stderr]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_layouter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `constant`
[INFO] [stderr]    --> src/arithmetic/example2.rs:213:57
[INFO] [stderr]     |
[INFO] [stderr] 213 |     fn load_constant(&self, layouter: impl Layouter<F>, constant: F) -> Result<Cell, Error> {
[INFO] [stderr]     |                                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a0`
[INFO] [stderr]    --> src/arithmetic/example2.rs:311:14
[INFO] [stderr]     |
[INFO] [stderr] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stderr]     |              ^^ help: if this is intentional, prefix it with an underscore: `_a0`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b0`
[INFO] [stderr]    --> src/arithmetic/example2.rs:311:18
[INFO] [stderr]     |
[INFO] [stderr] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stderr]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_b0`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c0`
[INFO] [stderr]    --> src/arithmetic/example2.rs:311:22
[INFO] [stderr]     |
[INFO] [stderr] 311 |         let (a0, b0, c0) = arith_chip.raw_multiply(&mut layouter,  || x.map(|x| (x,x,x*x)))?;
[INFO] [stderr]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_c0`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a1`
[INFO] [stderr]    --> src/arithmetic/example2.rs:314:14
[INFO] [stderr]     |
[INFO] [stderr] 314 |         let (a1, b1, _c1) = arith_chip.raw_multiply(&mut layouter, || y.map(|y| (y,y,y*y)))?;
[INFO] [stderr]     |              ^^ help: if this is intentional, prefix it with an underscore: `_a1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b1`
[INFO] [stderr]    --> src/arithmetic/example2.rs:314:18
[INFO] [stderr]     |
[INFO] [stderr] 314 |         let (a1, b1, _c1) = arith_chip.raw_multiply(&mut layouter, || y.map(|y| (y,y,y*y)))?;
[INFO] [stderr]     |                  ^^ help: if this is intentional, prefix it with an underscore: `_b1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `constant`
[INFO] [stderr]    --> src/arithmetic/example3.rs:283:9
[INFO] [stderr]     |
[INFO] [stderr] 283 |     let constant = Fp::from(7);
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_constant`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FunctionConfig` is never constructed
[INFO] [stderr]  --> src/example_iszero.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct FunctionConfig<F: FieldExt> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FunctionChip` is never constructed
[INFO] [stderr]   --> src/example_iszero.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct FunctionChip<F: FieldExt> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `construct`, `configure`, and `assign` are never used
[INFO] [stderr]   --> src/example_iszero.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl <F: FieldExt> FunctionChip<F> {
[INFO] [stderr]    | ---------------------------------- associated items in this implementation
[INFO] [stderr] 23 |     pub fn construct (config: FunctionConfig<F>) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 27 |     pub fn configure(meta: &mut ConstraintSystem<F>) -> FunctionConfig<F>{
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |     pub fn assign(
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FunctionCircuit` is never constructed
[INFO] [stderr]   --> src/example_iszero.rs:96:8
[INFO] [stderr]    |
[INFO] [stderr] 96 | struct FunctionCircuit<F> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]    --> src/example_iszero.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn main() {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `RnageCheckConfig` is never constructed
[INFO] [stderr]   --> src/range_check/example1.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct RnageCheckConfig<F: FieldExt, const RANGE: usize> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `configure` and `assign` are never used
[INFO] [stderr]   --> src/range_check/example1.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | impl <F: FieldExt, const RANGE: usize> RnageCheckConfig<F, RANGE> {        
[INFO] [stderr]    | ----------------------------------------------------------------- associated items in this implementation
[INFO] [stderr] 20 |     fn configure(
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 53 |     fn assign(
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ACell` is never constructed
[INFO] [stderr]  --> src/arithmetic/example1.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct ACell<F: FieldExt>(AssignedCell<F, F>);
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stderr]   --> src/arithmetic/example1.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct ArithmeticConfig {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArithmeticChip` is never constructed
[INFO] [stderr]   --> src/arithmetic/example1.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `construct`, `configure`, `assign_add`, `assign_mul`, and `expose_public` are never used
[INFO] [stderr]    --> src/arithmetic/example1.rs:24:12
[INFO] [stderr]     |
[INFO] [stderr]  23 | impl<F: FieldExt>  ArithmeticChip<F>{
[INFO] [stderr]     | ------------------------------------ associated items in this implementation
[INFO] [stderr]  24 |     pub fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  28 |     pub fn configure(
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  81 |     pub fn assign_add (
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 118 |     pub fn assign_mul (
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 156 |     pub fn expose_public(
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArithmeticCircuit` is never constructed
[INFO] [stderr]    --> src/arithmetic/example1.rs:168:8
[INFO] [stderr]     |
[INFO] [stderr] 168 | struct ArithmeticCircuit<F> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]    --> src/arithmetic/example1.rs:218:4
[INFO] [stderr]     |
[INFO] [stderr] 218 | fn main() {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ArithmeticInstructions` is never used
[INFO] [stderr]   --> src/arithmetic/example2.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 | trait ArithmeticInstructions<F: FieldExt> {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stderr]   --> src/arithmetic/example2.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 | struct ArithmeticConfig {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArithmeticChip` is never constructed
[INFO] [stderr]   --> src/arithmetic/example2.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `construct` is never used
[INFO] [stderr]   --> src/arithmetic/example2.rs:97:8
[INFO] [stderr]    |
[INFO] [stderr] 96 | impl<F: FieldExt> ArithmeticChip<F> {
[INFO] [stderr]    | ----------------------------------- associated function in this implementation
[INFO] [stderr] 97 |     fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Number` is never constructed
[INFO] [stderr]    --> src/arithmetic/example2.rs:119:8
[INFO] [stderr]     |
[INFO] [stderr] 119 | struct Number<F: FieldExt>(AssignedCell<F, F>);
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArithmeticCircuit` is never constructed
[INFO] [stderr]    --> src/arithmetic/example2.rs:238:8
[INFO] [stderr]     |
[INFO] [stderr] 238 | struct ArithmeticCircuit<F: FieldExt> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]    --> src/arithmetic/example2.rs:324:8
[INFO] [stderr]     |
[INFO] [stderr] 324 |     fn main() {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArithmeticConfig` is never constructed
[INFO] [stderr]   --> src/arithmetic/example3.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct ArithmeticConfig {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ArithmeticChip` is never constructed
[INFO] [stderr]   --> src/arithmetic/example3.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct ArithmeticChip<F: FieldExt> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `construct` and `configure` are never used
[INFO] [stderr]   --> src/arithmetic/example3.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | impl<F: FieldExt> ArithmeticChip<F> {
[INFO] [stderr]    | ----------------------------------- associated functions in this implementation
[INFO] [stderr] 32 |     fn construct(config: ArithmeticConfig) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |     fn configure(
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MyCircuit` is never constructed
[INFO] [stderr]    --> src/arithmetic/example3.rs:125:8
[INFO] [stderr]     |
[INFO] [stderr] 125 | struct MyCircuit<F: FieldExt> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]    --> src/arithmetic/example3.rs:274:4
[INFO] [stderr]     |
[INFO] [stderr] 274 | fn main() {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `PI` should have a snake case name
[INFO] [stderr]   --> src/arithmetic/example2.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     PI: Column<Instance>,
[INFO] [stderr]    |     ^^ help: convert the identifier to snake case: `pi`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `poly::Rotation` and `self`
[INFO] [stderr]   --> src/range_check/example1.rs:74:41
[INFO] [stderr]    |
[INFO] [stderr] 74 | ...dExt, circuit::{self, *}, dev::{FailureLocation, MockProver, VerifyFailure}, pasta::Fp, plonk::*, poly::Rotation
[INFO] [stderr]    |                    ^^^^                                                                              ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `group::ff::Field`
[INFO] [stderr]  --> src/arithmetic/example2.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use group::ff::Field;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]    --> src/example_iszero.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn main() {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fibonacci` (lib) generated 40 warnings (run `cargo fix --lib -p fibonacci` to apply 14 suggestions)
[INFO] [stderr] warning: `fibonacci` (lib test) generated 35 warnings (32 duplicates) (run `cargo fix --lib -p fibonacci --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/halo2_examples-05fbffed4ae1a138)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test example_iszero::tests::iszero_example ... ok
[INFO] [stdout] test range_check::example1::tests::test_range_check ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- range_check::example1::tests::test_range_check stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'range_check::example1::tests::test_range_check' (25) panicked at src/range_check/example1.rs:124:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: Ok(())
[INFO] [stdout]  right: Err([ConstraintNotSatisfied { constraint: Constraint { gate: Gate { index: 0, name: "range check" }, index: 0, name: "range check" }, location: InRegion { region: Region { index: 0, name: "Assign value" }, offset: 0 }, cell_values: [(VirtualCell { name: "", column: Column { column_type: Advice, index: 0 }, rotation: 0 }, "0x8")] }])
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x61f4fccee592 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x61f4fccee592 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x61f4fccee592 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x61f4fccee592 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x61f4fccfe80a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x61f4fccfe80a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x61f4fccbd516 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x61f4fccbd516 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x61f4fcccda79 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x61f4fcccda79 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x61f4fcccd911 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x61f4fcc75f2e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x61f4fcc75f2e - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x61f4fcccdcf2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x61f4fcccdcf2 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x61f4fcccdb38 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x61f4fccc90c9 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x61f4fccb210d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x61f4fcd061ec - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x61f4fcd060a3 - core::panicking::assert_failed_inner::h5aabe811ef142622
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x61f4fcc56468 - core::panicking::assert_failed::hd39c1d24277ccb55
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x61f4fcbf8b39 - halo2_examples::range_check::example1::tests::test_range_check::hd8505a002a4ed84a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/range_check/example1.rs:124:9
[INFO] [stdout]   22:     0x61f4fcbf8be7 - halo2_examples::range_check::example1::tests::test_range_check::{{closure}}::h26004385b8466fcc
[INFO] [stdout]                                at /opt/rustwide/workdir/src/range_check/example1.rs:105:22
[INFO] [stdout]   23:     0x61f4fcc501f6 - core::ops::function::FnOnce::call_once::h953ff0f3048c4f89
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x61f4fcc75d2b - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x61f4fcc75d2b - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x61f4fcc896fa - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x61f4fcc896fa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x61f4fcc896fa - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x61f4fcc896fa - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x61f4fcc896fa - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x61f4fcc896fa - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x61f4fcc896fa - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x61f4fcc63b54 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x61f4fcc63b54 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x61f4fcc67412 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x61f4fcc67412 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x61f4fcc67412 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x61f4fcc67412 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x61f4fcc67412 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x61f4fcc67412 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x61f4fcc67412 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x61f4fccc435f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x61f4fccc435f - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   44:     0x753dd7066aa4 - <unknown>
[INFO] [stdout]   45:     0x753dd70f3a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     range_check::example1::tests::test_range_check
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "be5defe7e73631f03575ebf94890219cca803d723cf9a6d0820cd0d870bb3fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be5defe7e73631f03575ebf94890219cca803d723cf9a6d0820cd0d870bb3fd0", kill_on_drop: false }`
[INFO] [stdout] be5defe7e73631f03575ebf94890219cca803d723cf9a6d0820cd0d870bb3fd0
