[INFO] fetching crate prolog_parser 0.8.68...
[INFO] documenting prolog_parser-0.8.68 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate prolog_parser 0.8.68 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate prolog_parser 0.8.68 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 crates.io crate prolog_parser 0.8.68
[INFO] finished tweaking crates.io crate prolog_parser 0.8.68
[INFO] tweaked toml for crates.io crate prolog_parser 0.8.68 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 8cf1a1a094e9cba709c29934ebffae9716137f810c656c4af0c9fd25f8126076
[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" "8cf1a1a094e9cba709c29934ebffae9716137f810c656c4af0c9fd25f8126076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cf1a1a094e9cba709c29934ebffae9716137f810c656c4af0c9fd25f8126076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf1a1a094e9cba709c29934ebffae9716137f810c656c4af0c9fd25f8126076", kill_on_drop: false }`
[INFO] [stdout] 8cf1a1a094e9cba709c29934ebffae9716137f810c656c4af0c9fd25f8126076
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] b43b6161937b150e57b8e161bb7507169135d08d919eb26c7c4f1f62757dad1a
[INFO] running `Command { std: "docker" "start" "-a" "b43b6161937b150e57b8e161bb7507169135d08d919eb26c7c4f1f62757dad1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.8
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling az v1.2.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling rug v1.16.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lexical-core v0.4.8
[INFO] [stderr]    Compiling lexical v2.2.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking unicode_reader v1.0.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v0.5.2
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "b43b6161937b150e57b8e161bb7507169135d08d919eb26c7c4f1f62757dad1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b43b6161937b150e57b8e161bb7507169135d08d919eb26c7c4f1f62757dad1a", kill_on_drop: false }`
[INFO] [stdout] b43b6161937b150e57b8e161bb7507169135d08d919eb26c7c4f1f62757dad1a