[INFO] cloning repository https://github.com/rustviz/polonius-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustviz/polonius-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustviz%2Fpolonius-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustviz%2Fpolonius-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b8752c8bf7ed7d2202c166a8e03a8a039232a7b
[INFO] documenting rustviz/polonius-engine against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustviz%2Fpolonius-engine" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rustviz/polonius-engine on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rustviz/polonius-engine
[INFO] finished tweaking git repo https://github.com/rustviz/polonius-engine
[INFO] tweaked toml for git repo https://github.com/rustviz/polonius-engine written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/rustviz/polonius-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded datafrog v2.0.1
[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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", 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] d264ee9e31457b2d5f55d3ca074d589493060778fa2ac304d557058c582a42b5
[INFO] running `Command { std: "docker" "start" "-a" "d264ee9e31457b2d5f55d3ca074d589493060778fa2ac304d557058c582a42b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d264ee9e31457b2d5f55d3ca074d589493060778fa2ac304d557058c582a42b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d264ee9e31457b2d5f55d3ca074d589493060778fa2ac304d557058c582a42b5", kill_on_drop: false }`
[INFO] [stdout] d264ee9e31457b2d5f55d3ca074d589493060778fa2ac304d557058c582a42b5
[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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 7029e508bcf976d14a02d9b268b2ba4c7bb434b5fd66f3e7c1d46365da939bb6
[INFO] running `Command { std: "docker" "start" "-a" "7029e508bcf976d14a02d9b268b2ba4c7bb434b5fd66f3e7c1d46365da939bb6", kill_on_drop: false }`
[INFO] [stderr]     Checking datafrog v2.0.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]  Documenting polonius-engine v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.18s
[INFO] running `Command { std: "docker" "inspect" "7029e508bcf976d14a02d9b268b2ba4c7bb434b5fd66f3e7c1d46365da939bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7029e508bcf976d14a02d9b268b2ba4c7bb434b5fd66f3e7c1d46365da939bb6", kill_on_drop: false }`
[INFO] [stdout] 7029e508bcf976d14a02d9b268b2ba4c7bb434b5fd66f3e7c1d46365da939bb6
[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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] 1ac7d7ab2c3978a366f4479370a9062622ecd427504ed4359e6967b7710492d9
[INFO] running `Command { std: "docker" "start" "-a" "1ac7d7ab2c3978a366f4479370a9062622ecd427504ed4359e6967b7710492d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking datafrog v2.0.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]  Documenting polonius-engine v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.93s
[INFO] running `Command { std: "docker" "inspect" "1ac7d7ab2c3978a366f4479370a9062622ecd427504ed4359e6967b7710492d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac7d7ab2c3978a366f4479370a9062622ecd427504ed4359e6967b7710492d9", kill_on_drop: false }`
[INFO] [stdout] 1ac7d7ab2c3978a366f4479370a9062622ecd427504ed4359e6967b7710492d9