[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 try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryardley%2Fhalo_example" "/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/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-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ryardley/halo_example on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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_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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94a83e82349ec264903c0b6a2fd07bcb89f7609e723321feba2f53f2eb215123
[INFO] running `Command { std: "docker" "start" "-a" "94a83e82349ec264903c0b6a2fd07bcb89f7609e723321feba2f53f2eb215123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94a83e82349ec264903c0b6a2fd07bcb89f7609e723321feba2f53f2eb215123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94a83e82349ec264903c0b6a2fd07bcb89f7609e723321feba2f53f2eb215123", kill_on_drop: false }`
[INFO] [stdout] 94a83e82349ec264903c0b6a2fd07bcb89f7609e723321feba2f53f2eb215123
[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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] deb17dc322aecdeed72eb2ac32777d191714609090f076c7b3c2a29f5adae8af
[INFO] running `Command { std: "docker" "start" "-a" "deb17dc322aecdeed72eb2ac32777d191714609090f076c7b3c2a29f5adae8af", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling constant_time_eq v0.3.1
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling blake2b_simd v1.0.2
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling halo2 v0.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling uint v0.9.5
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling ff v0.13.0
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling maybe-rayon v0.1.1
[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 sinsemilla v0.1.0
[INFO] [stderr]    Compiling halo2_proofs v0.3.0
[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 42.61s
[INFO] running `Command { std: "docker" "inspect" "deb17dc322aecdeed72eb2ac32777d191714609090f076c7b3c2a29f5adae8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deb17dc322aecdeed72eb2ac32777d191714609090f076c7b3c2a29f5adae8af", kill_on_drop: false }`
[INFO] [stdout] deb17dc322aecdeed72eb2ac32777d191714609090f076c7b3c2a29f5adae8af
[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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ce2ccd29f828118e12dfeee62dfe2b1eccdb7c80282a2f6201d90b28e683093
[INFO] running `Command { std: "docker" "start" "-a" "2ce2ccd29f828118e12dfeee62dfe2b1eccdb7c80282a2f6201d90b28e683093", 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 6.72s
[INFO] running `Command { std: "docker" "inspect" "2ce2ccd29f828118e12dfeee62dfe2b1eccdb7c80282a2f6201d90b28e683093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce2ccd29f828118e12dfeee62dfe2b1eccdb7c80282a2f6201d90b28e683093", kill_on_drop: false }`
[INFO] [stdout] 2ce2ccd29f828118e12dfeee62dfe2b1eccdb7c80282a2f6201d90b28e683093
[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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 85a8f3a50c07ba172d01f56edecbe7c18ca8b08bca4126f2df55e825cf153cc0
[INFO] running `Command { std: "docker" "start" "-a" "85a8f3a50c07ba172d01f56edecbe7c18ca8b08bca4126f2df55e825cf153cc0", 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 0.10s
[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" "85a8f3a50c07ba172d01f56edecbe7c18ca8b08bca4126f2df55e825cf153cc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85a8f3a50c07ba172d01f56edecbe7c18ca8b08bca4126f2df55e825cf153cc0", kill_on_drop: false }`
[INFO] [stdout] 85a8f3a50c07ba172d01f56edecbe7c18ca8b08bca4126f2df55e825cf153cc0
