[INFO] fetching crate polynomial-over-finite-prime-field 0.4.3...
[INFO] checking polynomial-over-finite-prime-field-0.4.3 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate polynomial-over-finite-prime-field 0.4.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate polynomial-over-finite-prime-field 0.4.3 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polynomial-over-finite-prime-field 0.4.3
[INFO] finished tweaking crates.io crate polynomial-over-finite-prime-field 0.4.3
[INFO] tweaked toml for crates.io crate polynomial-over-finite-prime-field 0.4.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding ring-algorithm v0.6.1 (latest: v0.7.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (latest: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ring-algorithm v0.6.1
[INFO] [stderr]   Downloaded modulo-n-tools v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d890d7ffc4d5ed65c8d83db524d07ae4130adc95152a19eea9b27f1d726ba870
[INFO] running `Command { std: "docker" "start" "-a" "d890d7ffc4d5ed65c8d83db524d07ae4130adc95152a19eea9b27f1d726ba870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d890d7ffc4d5ed65c8d83db524d07ae4130adc95152a19eea9b27f1d726ba870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d890d7ffc4d5ed65c8d83db524d07ae4130adc95152a19eea9b27f1d726ba870", kill_on_drop: false }`
[INFO] [stdout] d890d7ffc4d5ed65c8d83db524d07ae4130adc95152a19eea9b27f1d726ba870
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f2ae68deea34b897f310212517483c153893592d1602361575e047ef12f5bf5
[INFO] running `Command { std: "docker" "start" "-a" "8f2ae68deea34b897f310212517483c153893592d1602361575e047ef12f5bf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.4
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.26.0
[INFO] [stderr]     Checking modulo-n-tools v0.2.0
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking ring-algorithm v0.6.1
[INFO] [stderr]     Checking polynomial-over-finite-prime-field v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `SizedExt` is never used
[INFO] [stdout]   --> src/lib.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub trait SizedExt: std::marker::Sized + std::fmt::Debug + std::fmt::Display {}
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SizedExt` is never used
[INFO] [stdout]   --> src/lib.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub trait SizedExt: std::marker::Sized + std::fmt::Debug + std::fmt::Display {}
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "8f2ae68deea34b897f310212517483c153893592d1602361575e047ef12f5bf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2ae68deea34b897f310212517483c153893592d1602361575e047ef12f5bf5", kill_on_drop: false }`
[INFO] [stdout] 8f2ae68deea34b897f310212517483c153893592d1602361575e047ef12f5bf5