[INFO] fetching crate factorial 0.2.1...
[INFO] testing factorial-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate factorial 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate factorial 0.2.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate factorial 0.2.1
[INFO] finished tweaking crates.io crate factorial 0.2.1
[INFO] tweaked toml for crates.io crate factorial 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2febd840688ff254d2e593bab1debc0d65e9a748e8ae50d79bb5b7254ea7a7bd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2febd840688ff254d2e593bab1debc0d65e9a748e8ae50d79bb5b7254ea7a7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2febd840688ff254d2e593bab1debc0d65e9a748e8ae50d79bb5b7254ea7a7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2febd840688ff254d2e593bab1debc0d65e9a748e8ae50d79bb5b7254ea7a7bd", kill_on_drop: false }`
[INFO] [stdout] 2febd840688ff254d2e593bab1debc0d65e9a748e8ae50d79bb5b7254ea7a7bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab2037bead5fa16eb06cb6bee1cfe13a3ab542205bba04742c21364243db8362
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ab2037bead5fa16eb06cb6bee1cfe13a3ab542205bba04742c21364243db8362", kill_on_drop: false }`
[INFO] [stderr]    Compiling factorial v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "ab2037bead5fa16eb06cb6bee1cfe13a3ab542205bba04742c21364243db8362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab2037bead5fa16eb06cb6bee1cfe13a3ab542205bba04742c21364243db8362", kill_on_drop: false }`
[INFO] [stdout] ab2037bead5fa16eb06cb6bee1cfe13a3ab542205bba04742c21364243db8362
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd9cf868e5bb745ce72e466713e204b289a332e7010ab5e82f37444ef436aa6e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bd9cf868e5bb745ce72e466713e204b289a332e7010ab5e82f37444ef436aa6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling factorial v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "bd9cf868e5bb745ce72e466713e204b289a332e7010ab5e82f37444ef436aa6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd9cf868e5bb745ce72e466713e204b289a332e7010ab5e82f37444ef436aa6e", kill_on_drop: false }`
[INFO] [stdout] bd9cf868e5bb745ce72e466713e204b289a332e7010ab5e82f37444ef436aa6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 494bad93d80db6710cdbe9cd618e1e79945403af493d292753e3acd0d7334fa2
[INFO] running `Command { std: "docker" "start" "-a" "494bad93d80db6710cdbe9cd618e1e79945403af493d292753e3acd0d7334fa2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/factorial-b6f0a9b8ba4cd74f)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::one_double_fact_is_two ... ok
[INFO] [stdout] test tests::zero_fact_is_one ... ok
[INFO] [stdout] test tests::zero_double_fact_is_one ... ok
[INFO] [stdout] test tests::two_fact_is_two ... ok
[INFO] [stdout] test tests::two_double_fact_is_two ... ok
[INFO] [stdout] test tests::biguint_support ... ok
[INFO] [stdout] test tests::too_large_safe_double_fact ... ok
[INFO] [stdout] test tests::ten_fact ... ok
[INFO] [stdout] test tests::one_fact_is_one ... ok
[INFO] [stdout] test tests::ten_double_fact ... ok
[INFO] [stdout] test tests::seven_double_fact ... ok
[INFO] [stdout] test tests::too_large_safe ... ok
[INFO] [stdout] test tests::too_large_double_fact - should panic ... ok
[INFO] [stderr]    Doc-tests factorial
[INFO] [stdout] test tests::too_large - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Factorial::checked_factorial (line 23) ... ok
[INFO] [stdout] test src/lib.rs - Factorial::factorial (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.38s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "494bad93d80db6710cdbe9cd618e1e79945403af493d292753e3acd0d7334fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "494bad93d80db6710cdbe9cd618e1e79945403af493d292753e3acd0d7334fa2", kill_on_drop: false }`
[INFO] [stdout] 494bad93d80db6710cdbe9cd618e1e79945403af493d292753e3acd0d7334fa2