[INFO] cloning repository https://github.com/ryardley/halo_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryardley/halo_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryardley%2Fhalo_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryardley%2Fhalo_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6dd420b0c0f16aaa901bd43661243fd2433cd8f
[INFO] testing ryardley/halo_example against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryardley%2Fhalo_example" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ryardley/halo_example
[INFO] finished tweaking git repo https://github.com/ryardley/halo_example
[INFO] tweaked toml for git repo https://github.com/ryardley/halo_example written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ryardley/halo_example on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ryardley/halo_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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded halo2 v0.0.0
[INFO] [stderr]   Downloaded pasta_curves v0.5.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.15
[INFO] [stderr]   Downloaded halo2_poseidon v0.1.0
[INFO] [stderr]   Downloaded sinsemilla v0.1.0
[INFO] [stderr]   Downloaded halo2_proofs v0.3.0
[INFO] [stderr]   Downloaded halo2_gadgets v0.3.1
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36656d4ff49940c973cd13e8ebc164183e9407cc6233ebc6e4350476dfdaa78f
[INFO] running `Command { std: "docker" "start" "-a" "36656d4ff49940c973cd13e8ebc164183e9407cc6233ebc6e4350476dfdaa78f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36656d4ff49940c973cd13e8ebc164183e9407cc6233ebc6e4350476dfdaa78f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36656d4ff49940c973cd13e8ebc164183e9407cc6233ebc6e4350476dfdaa78f", kill_on_drop: false }`
[INFO] [stdout] 36656d4ff49940c973cd13e8ebc164183e9407cc6233ebc6e4350476dfdaa78f
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a347d791eff4f171229295a315ef2ffbdf090d43945ed54a18bb3fb0bf46ff8b
[INFO] running `Command { std: "docker" "start" "-a" "a347d791eff4f171229295a315ef2ffbdf090d43945ed54a18bb3fb0bf46ff8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling blake2b_simd v1.0.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling uint v0.9.5
[INFO] [stderr]    Compiling halo2 v0.0.0
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling maybe-rayon v0.1.1
[INFO] [stderr]    Compiling ff v0.13.0
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling pasta_curves v0.5.1
[INFO] [stderr]    Compiling halo2_proofs v0.3.0
[INFO] [stderr]    Compiling sinsemilla v0.1.0
[INFO] [stderr]    Compiling halo2_poseidon v0.1.0
[INFO] [stderr]    Compiling halo2_gadgets v0.3.1
[INFO] [stderr]    Compiling halo_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `NumericInstructions` is never used
[INFO] [stdout]   --> src/example1.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | trait NumericInstructions<F: Field>: Chip<F> {
[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 `FieldChip` is never constructed
[INFO] [stdout]   --> src/example1.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct FieldChip<F: Field> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FieldConfig` is never constructed
[INFO] [stdout]   --> src/example1.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | struct FieldConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `construct` and `configure` are never used
[INFO] [stdout]   --> src/example1.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl<F: Field> FieldChip<F> {
[INFO] [stdout]    | --------------------------- associated functions in this implementation
[INFO] [stdout] 80 |     fn construct(config: <Self as Chip<F>>::Config) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn configure(
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]    --> src/example1.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 157 | struct Number<F: Field>(AssignedCell<F, F>);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyCircuit` is never constructed
[INFO] [stdout]    --> src/example1.rs:252:8
[INFO] [stdout]     |
[INFO] [stdout] 252 | struct MyCircuit<F: Field> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_example1` is never used
[INFO] [stdout]    --> src/example1.rs:316:8
[INFO] [stdout]     |
[INFO] [stdout] 316 | pub fn test_example1() -> Result<(), Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyCircuit` is never constructed
[INFO] [stdout]  --> src/example2.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct MyCircuit {}
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.26s
[INFO] running `Command { std: "docker" "inspect" "a347d791eff4f171229295a315ef2ffbdf090d43945ed54a18bb3fb0bf46ff8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a347d791eff4f171229295a315ef2ffbdf090d43945ed54a18bb3fb0bf46ff8b", kill_on_drop: false }`
[INFO] [stdout] a347d791eff4f171229295a315ef2ffbdf090d43945ed54a18bb3fb0bf46ff8b
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab7dbe73f07f6b1ec9d8d5afa86b5442026ad671de6c3cf6fcbf28fd37d0cb5e
[INFO] running `Command { std: "docker" "start" "-a" "ab7dbe73f07f6b1ec9d8d5afa86b5442026ad671de6c3cf6fcbf28fd37d0cb5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling halo_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `NumericInstructions` is never used
[INFO] [stdout]   --> src/example1.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | trait NumericInstructions<F: Field>: Chip<F> {
[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 `FieldChip` is never constructed
[INFO] [stdout]   --> src/example1.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct FieldChip<F: Field> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FieldConfig` is never constructed
[INFO] [stdout]   --> src/example1.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | struct FieldConfig {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `construct` and `configure` are never used
[INFO] [stdout]   --> src/example1.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl<F: Field> FieldChip<F> {
[INFO] [stdout]    | --------------------------- associated functions in this implementation
[INFO] [stdout] 80 |     fn construct(config: <Self as Chip<F>>::Config) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn configure(
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]    --> src/example1.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 157 | struct Number<F: Field>(AssignedCell<F, F>);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyCircuit` is never constructed
[INFO] [stdout]    --> src/example1.rs:252:8
[INFO] [stdout]     |
[INFO] [stdout] 252 | struct MyCircuit<F: Field> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_example1` is never used
[INFO] [stdout]    --> src/example1.rs:316:8
[INFO] [stdout]     |
[INFO] [stdout] 316 | pub fn test_example1() -> Result<(), Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.25s
[INFO] running `Command { std: "docker" "inspect" "ab7dbe73f07f6b1ec9d8d5afa86b5442026ad671de6c3cf6fcbf28fd37d0cb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab7dbe73f07f6b1ec9d8d5afa86b5442026ad671de6c3cf6fcbf28fd37d0cb5e", kill_on_drop: false }`
[INFO] [stdout] ab7dbe73f07f6b1ec9d8d5afa86b5442026ad671de6c3cf6fcbf28fd37d0cb5e
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d677fa715c03554c42cc5ee503cf3737c68c91fc919edec23f88502986a57e9b
[INFO] running `Command { std: "docker" "start" "-a" "d677fa715c03554c42cc5ee503cf3737c68c91fc919edec23f88502986a57e9b", kill_on_drop: false }`
[INFO] [stderr] warning: trait `NumericInstructions` is never used
[INFO] [stderr]   --> src/example1.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 | trait NumericInstructions<F: Field>: Chip<F> {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FieldChip` is never constructed
[INFO] [stderr]   --> src/example1.rs:53:8
[INFO] [stderr]    |
[INFO] [stderr] 53 | struct FieldChip<F: Field> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FieldConfig` is never constructed
[INFO] [stderr]   --> src/example1.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 | struct FieldConfig {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `construct` and `configure` are never used
[INFO] [stderr]   --> src/example1.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 79 | impl<F: Field> FieldChip<F> {
[INFO] [stderr]    | --------------------------- associated functions in this implementation
[INFO] [stderr] 80 |     fn construct(config: <Self as Chip<F>>::Config) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 87 |     fn configure(
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Number` is never constructed
[INFO] [stderr]    --> src/example1.rs:157:8
[INFO] [stderr]     |
[INFO] [stderr] 157 | struct Number<F: Field>(AssignedCell<F, F>);
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MyCircuit` is never constructed
[INFO] [stderr]    --> src/example1.rs:252:8
[INFO] [stderr]     |
[INFO] [stderr] 252 | struct MyCircuit<F: Field> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_example1` is never used
[INFO] [stderr]    --> src/example1.rs:316:8
[INFO] [stderr]     |
[INFO] [stderr] 316 | pub fn test_example1() -> Result<(), Error> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `halo_example` (bin "halo_example" test) generated 7 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/halo_example-01d02a4bd0293ed2)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_sha256 has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "d677fa715c03554c42cc5ee503cf3737c68c91fc919edec23f88502986a57e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d677fa715c03554c42cc5ee503cf3737c68c91fc919edec23f88502986a57e9b", kill_on_drop: false }`
[INFO] [stdout] d677fa715c03554c42cc5ee503cf3737c68c91fc919edec23f88502986a57e9b
