[INFO] fetching crate ff-derive-arcium-fork 0.13.2...
[INFO] checking ff-derive-arcium-fork-0.13.2 against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] extracting crate ff-derive-arcium-fork 0.13.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ff-derive-arcium-fork 0.13.2
[INFO] finished tweaking crates.io crate ff-derive-arcium-fork 0.13.2
[INFO] tweaked toml for crates.io crate ff-derive-arcium-fork 0.13.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ff-derive-arcium-fork 0.13.2 on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to highest compatible versions
[INFO] [stderr]       Adding num-bigint v0.3.3 (available: v0.5.1)
[INFO] [stderr]       Adding syn v1.0.109 (available: v3.0.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded addchain-arcium-fork v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 84cd1b16f3b529ff6002770f8a5c80ca570863c03da87a1c60d7a4697b95774f
[INFO] running `Command { std: "docker" "start" "84cd1b16f3b529ff6002770f8a5c80ca570863c03da87a1c60d7a4697b95774f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84cd1b16f3b529ff6002770f8a5c80ca570863c03da87a1c60d7a4697b95774f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "84cd1b16f3b529ff6002770f8a5c80ca570863c03da87a1c60d7a4697b95774f" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84cd1b16f3b529ff6002770f8a5c80ca570863c03da87a1c60d7a4697b95774f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "84cd1b16f3b529ff6002770f8a5c80ca570863c03da87a1c60d7a4697b95774f" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]     Checking unicode-ident v1.0.27
[INFO] [stderr]     Checking cfg-if v1.0.5
[INFO] [stderr]     Checking proc-macro2 v1.0.107
[INFO] [stderr]     Checking quote v1.0.47
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking num-integer v0.1.47
[INFO] [stderr]     Checking addchain-arcium-fork v0.2.1
[INFO] [stderr]     Checking ff-derive-arcium-fork v0.13.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]     --> src/lib.rs:1421:13
[INFO] [stdout]      |
[INFO] [stdout] 1421 |         let y = prime_field_2(blabla);
[INFO] [stdout]      |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `Command { std: "docker" "inspect" "84cd1b16f3b529ff6002770f8a5c80ca570863c03da87a1c60d7a4697b95774f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84cd1b16f3b529ff6002770f8a5c80ca570863c03da87a1c60d7a4697b95774f", kill_on_drop: false }`
[INFO] [stdout] 84cd1b16f3b529ff6002770f8a5c80ca570863c03da87a1c60d7a4697b95774f
