[INFO] cloning repository https://github.com/TENX-S/collatz_conjecture
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TENX-S/collatz_conjecture" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTENX-S%2Fcollatz_conjecture", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTENX-S%2Fcollatz_conjecture'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c4dc4ef8a0cf7c3129457cb161ac2deb09e190e
[INFO] documenting TENX-S/collatz_conjecture against 1.55.0 for beta-1.56-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTENX-S%2Fcollatz_conjecture" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TENX-S/collatz_conjecture 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 git repo https://github.com/TENX-S/collatz_conjecture
[INFO] finished tweaking git repo https://github.com/TENX-S/collatz_conjecture
[INFO] tweaked toml for git repo https://github.com/TENX-S/collatz_conjecture written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/TENX-S/collatz_conjecture already has a lockfile, it will not be regenerated
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] cccc32d705b00d2bee7045c296481772033b50552473d657de6f1069e3cc7a14
[INFO] running `Command { std: "docker" "start" "-a" "cccc32d705b00d2bee7045c296481772033b50552473d657de6f1069e3cc7a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cccc32d705b00d2bee7045c296481772033b50552473d657de6f1069e3cc7a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cccc32d705b00d2bee7045c296481772033b50552473d657de6f1069e3cc7a14", kill_on_drop: false }`
[INFO] [stdout] cccc32d705b00d2bee7045c296481772033b50552473d657de6f1069e3cc7a14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4e496c305e77993735c113fca55d95f961cad261d9b765124ceb1eb212e446a
[INFO] running `Command { std: "docker" "start" "-a" "d4e496c305e77993735c113fca55d95f961cad261d9b765124ceb1eb212e446a", kill_on_drop: false }`
[INFO] [stderr]     Checking num-bigint v0.4.0
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]  Documenting collatz_conjecture v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "d4e496c305e77993735c113fca55d95f961cad261d9b765124ceb1eb212e446a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e496c305e77993735c113fca55d95f961cad261d9b765124ceb1eb212e446a", kill_on_drop: false }`
[INFO] [stdout] d4e496c305e77993735c113fca55d95f961cad261d9b765124ceb1eb212e446a