[INFO] cloning repository https://github.com/teddav/rareskills-halo2-talk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/teddav/rareskills-halo2-talk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteddav%2Frareskills-halo2-talk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteddav%2Frareskills-halo2-talk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 045422430adbb2570bff10ae62d15508791d26c8
[INFO] checking teddav/rareskills-halo2-talk against 1.95.0-beta.7 for beta-1.95-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteddav%2Frareskills-halo2-talk" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/teddav/rareskills-halo2-talk
[INFO] finished tweaking git repo https://github.com/teddav/rareskills-halo2-talk
[INFO] tweaked toml for git repo https://github.com/teddav/rareskills-halo2-talk written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/teddav/rareskills-halo2-talk on toolchain 1.95.0-beta.7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/teddav/rareskills-halo2-talk 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" "+1.95.0-beta.7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/privacy-ethereum/halo2`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15c3bc79e540e75c34e187dffb3e4249872139a9d680350f0e2755e8a39c7915
[INFO] running `Command { std: "docker" "start" "-a" "15c3bc79e540e75c34e187dffb3e4249872139a9d680350f0e2755e8a39c7915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15c3bc79e540e75c34e187dffb3e4249872139a9d680350f0e2755e8a39c7915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15c3bc79e540e75c34e187dffb3e4249872139a9d680350f0e2755e8a39c7915", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93b3315301dc9511de8111b712ecbff7b85b1d56751c2e59946ee4f673ab9a50
[INFO] running `Command { std: "docker" "start" "-a" "93b3315301dc9511de8111b712ecbff7b85b1d56751c2e59946ee4f673ab9a50", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling typenum v1.18.0
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[INFO] [stderr]     Checking tap v1.0.1
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[INFO] [stderr]     Checking adler2 v2.0.1
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[INFO] [stderr]     Checking rand v0.8.5
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[INFO] [stderr]     Checking pasta_curves v0.5.1
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling halo2derive v0.1.0
[INFO] [stderr]    Compiling unroll v0.1.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tabbycat v0.1.2
[INFO] [stderr]     Checking halo2_middleware v0.4.0 (https://github.com/privacy-ethereum/halo2?tag=v0.4.0#7eb156ac)
[INFO] [stderr]     Checking halo2_backend v0.4.0 (https://github.com/privacy-ethereum/halo2?tag=v0.4.0#7eb156ac)
[INFO] [stderr]     Checking halo2_frontend v0.4.0 (https://github.com/privacy-ethereum/halo2?tag=v0.4.0#7eb156ac)
[INFO] [stderr]     Checking halo2_proofs v0.4.0 (https://github.com/privacy-ethereum/halo2?tag=v0.4.0#7eb156ac)
[INFO] [stderr]     Checking rareskills v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Expression`
[INFO] [stdout]  --> src/look.rs:5:64
[INFO] [stdout]   |
[INFO] [stdout] 5 |         Advice, Circuit, Column, ConstraintSystem, ErrorFront, Expression, Instance, Selector,
[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: `Expression`
[INFO] [stdout]  --> src/look.rs:5:64
[INFO] [stdout]   |
[INFO] [stdout] 5 |         Advice, Circuit, Column, ConstraintSystem, ErrorFront, Expression, Instance, Selector,
[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 variable: `s`
[INFO] [stdout]   --> src/look.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let s = meta.query_selector(lookup_selector);
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/look.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let s = meta.query_selector(lookup_selector);
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fibo` is never used
[INFO] [stdout]   --> src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn fibo() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fibo2` is never used
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn fibo2() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_graph` is never used
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn generate_graph() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FiboCircuit` is never constructed
[INFO] [stdout]  --> src/fibo.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct FiboCircuit<const N: usize> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FiboConfig` is never constructed
[INFO] [stdout]   --> src/fibo.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct FiboConfig {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FiboCircuit` is never constructed
[INFO] [stdout]  --> src/fibo2.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct FiboCircuit<const N: usize> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FiboConfig` is never constructed
[INFO] [stdout]   --> src/fibo2.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct FiboConfig {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fibo` is never used
[INFO] [stdout]   --> src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn fibo() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fibo2` is never used
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn fibo2() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_graph` is never used
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn generate_graph() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FiboCircuit` is never constructed
[INFO] [stdout]  --> src/fibo.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct FiboCircuit<const N: usize> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FiboConfig` is never constructed
[INFO] [stdout]   --> src/fibo.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct FiboConfig {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FiboCircuit` is never constructed
[INFO] [stdout]  --> src/fibo2.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct FiboCircuit<const N: usize> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FiboConfig` is never constructed
[INFO] [stdout]   --> src/fibo2.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct FiboConfig {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.92s
[INFO] running `Command { std: "docker" "inspect" "93b3315301dc9511de8111b712ecbff7b85b1d56751c2e59946ee4f673ab9a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93b3315301dc9511de8111b712ecbff7b85b1d56751c2e59946ee4f673ab9a50", kill_on_drop: false }`
[INFO] [stdout] 93b3315301dc9511de8111b712ecbff7b85b1d56751c2e59946ee4f673ab9a50
