[INFO] fetching crate collatz_conjecture 0.1.2...
[INFO] testing collatz_conjecture-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate collatz_conjecture 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate collatz_conjecture 0.1.2 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 collatz_conjecture 0.1.2
[INFO] finished tweaking crates.io crate collatz_conjecture 0.1.2
[INFO] tweaked toml for crates.io crate collatz_conjecture 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate collatz_conjecture 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded text_io v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d9a5ec8b06ce989688525d1032f24b873316664d75d87e52ca8c84285399c12d
[INFO] running `Command { std: "docker" "start" "-a" "d9a5ec8b06ce989688525d1032f24b873316664d75d87e52ca8c84285399c12d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9a5ec8b06ce989688525d1032f24b873316664d75d87e52ca8c84285399c12d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9a5ec8b06ce989688525d1032f24b873316664d75d87e52ca8c84285399c12d", kill_on_drop: false }`
[INFO] [stdout] d9a5ec8b06ce989688525d1032f24b873316664d75d87e52ca8c84285399c12d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 1c7666bf40533c7e61b32fd35c7b3115a27987fbbea950ac91ba33f090c172bb
[INFO] running `Command { std: "docker" "start" "-a" "1c7666bf40533c7e61b32fd35c7b3115a27987fbbea950ac91ba33f090c172bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling text_io v0.1.9
[INFO] [stderr]    Compiling collatz_conjecture v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "1c7666bf40533c7e61b32fd35c7b3115a27987fbbea950ac91ba33f090c172bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c7666bf40533c7e61b32fd35c7b3115a27987fbbea950ac91ba33f090c172bb", kill_on_drop: false }`
[INFO] [stdout] 1c7666bf40533c7e61b32fd35c7b3115a27987fbbea950ac91ba33f090c172bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b249affc0ed358a55f28144e5a1649adb2a6d915d628cb7257220415e93fec22
[INFO] running `Command { std: "docker" "start" "-a" "b249affc0ed358a55f28144e5a1649adb2a6d915d628cb7257220415e93fec22", kill_on_drop: false }`
[INFO] [stderr]    Compiling collatz_conjecture v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "b249affc0ed358a55f28144e5a1649adb2a6d915d628cb7257220415e93fec22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b249affc0ed358a55f28144e5a1649adb2a6d915d628cb7257220415e93fec22", kill_on_drop: false }`
[INFO] [stdout] b249affc0ed358a55f28144e5a1649adb2a6d915d628cb7257220415e93fec22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 05d2cabf716b2d62f8efc1497e587d46e2a00b96398d1b5fe647fa63ca44d592
[INFO] running `Command { std: "docker" "start" "-a" "05d2cabf716b2d62f8efc1497e587d46e2a00b96398d1b5fe647fa63ca44d592", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collatz_conjecture-c8381f4c6a9979f4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "05d2cabf716b2d62f8efc1497e587d46e2a00b96398d1b5fe647fa63ca44d592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05d2cabf716b2d62f8efc1497e587d46e2a00b96398d1b5fe647fa63ca44d592", kill_on_drop: false }`
[INFO] [stdout] 05d2cabf716b2d62f8efc1497e587d46e2a00b96398d1b5fe647fa63ca44d592