[INFO] fetching crate polynomial 0.1.0...
[INFO] testing polynomial-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate polynomial 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate polynomial 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polynomial 0.1.0
[INFO] finished tweaking crates.io crate polynomial 0.1.0
[INFO] tweaked toml for crates.io crate polynomial 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 082422e80b94f83cb21a1478c1b2018192242160386281b92d2060d5d6c28831
[INFO] running `Command { std: "docker" "start" "-a" "082422e80b94f83cb21a1478c1b2018192242160386281b92d2060d5d6c28831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "082422e80b94f83cb21a1478c1b2018192242160386281b92d2060d5d6c28831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "082422e80b94f83cb21a1478c1b2018192242160386281b92d2060d5d6c28831", kill_on_drop: false }`
[INFO] [stdout] 082422e80b94f83cb21a1478c1b2018192242160386281b92d2060d5d6c28831
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb8ba2faf33db25d73a7d6c52bbcf7ed6393a849ce8ad4ff460bb3fdda3404f
[INFO] running `Command { std: "docker" "start" "-a" "adb8ba2faf33db25d73a7d6c52bbcf7ed6393a849ce8ad4ff460bb3fdda3404f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling polynomial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "adb8ba2faf33db25d73a7d6c52bbcf7ed6393a849ce8ad4ff460bb3fdda3404f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb8ba2faf33db25d73a7d6c52bbcf7ed6393a849ce8ad4ff460bb3fdda3404f", kill_on_drop: false }`
[INFO] [stdout] adb8ba2faf33db25d73a7d6c52bbcf7ed6393a849ce8ad4ff460bb3fdda3404f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b43ec930489e7a53b16be2e72fdbe59663c7863ee57c92ee0b09e583274d29ec
[INFO] running `Command { std: "docker" "start" "-a" "b43ec930489e7a53b16be2e72fdbe59663c7863ee57c92ee0b09e583274d29ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling polynomial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "b43ec930489e7a53b16be2e72fdbe59663c7863ee57c92ee0b09e583274d29ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b43ec930489e7a53b16be2e72fdbe59663c7863ee57c92ee0b09e583274d29ec", kill_on_drop: false }`
[INFO] [stdout] b43ec930489e7a53b16be2e72fdbe59663c7863ee57c92ee0b09e583274d29ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab96646bb53330da4155ea66ea4c988190113e12e47a1431c4abca0e27df341e
[INFO] running `Command { std: "docker" "start" "-a" "ab96646bb53330da4155ea66ea4c988190113e12e47a1431c4abca0e27df341e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polynomial-711b00cd1c8c2a4b)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::eval ... ok
[INFO] [stdout] test tests::mul ... ok
[INFO] [stdout] test tests::neg_add_sub ... ok
[INFO] [stdout] test tests::pretty ... ok
[INFO] [stderr]    Doc-tests polynomial
[INFO] [stdout] test tests::new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Polynomial<T>::eval (line 45) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial<T>::new (line 28) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.77s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ab96646bb53330da4155ea66ea4c988190113e12e47a1431c4abca0e27df341e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab96646bb53330da4155ea66ea4c988190113e12e47a1431c4abca0e27df341e", kill_on_drop: false }`
[INFO] [stdout] ab96646bb53330da4155ea66ea4c988190113e12e47a1431c4abca0e27df341e