[INFO] fetching crate cake 0.1.0...
[INFO] documenting cake-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate cake 0.1.0 into /workspace/builds/worker-61/source
[INFO] validating manifest of crates.io crate cake 0.1.0 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 cake 0.1.0
[INFO] finished tweaking crates.io crate cake 0.1.0
[INFO] tweaked toml for crates.io crate cake 0.1.0 written to /workspace/builds/worker-61/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rayon v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 807d8c889d8e292934bc1df691e678ea7470c84d8a1c5bbf7613f15bc46b7de6
[INFO] running `Command { std: "docker" "start" "-a" "807d8c889d8e292934bc1df691e678ea7470c84d8a1c5bbf7613f15bc46b7de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "807d8c889d8e292934bc1df691e678ea7470c84d8a1c5bbf7613f15bc46b7de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "807d8c889d8e292934bc1df691e678ea7470c84d8a1c5bbf7613f15bc46b7de6", kill_on_drop: false }`
[INFO] [stdout] 807d8c889d8e292934bc1df691e678ea7470c84d8a1c5bbf7613f15bc46b7de6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] [stdout] 0467f3b16e7ee3131862e347d4814a5eb6453c5b0f32500f07cce42542d5744d
[INFO] running `Command { std: "docker" "start" "-a" "0467f3b16e7ee3131862e347d4814a5eb6453c5b0f32500f07cce42542d5744d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rayon v0.4.3
[INFO] [stderr]  Documenting cake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.30s
[INFO] running `Command { std: "docker" "inspect" "0467f3b16e7ee3131862e347d4814a5eb6453c5b0f32500f07cce42542d5744d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0467f3b16e7ee3131862e347d4814a5eb6453c5b0f32500f07cce42542d5744d", kill_on_drop: false }`
[INFO] [stdout] 0467f3b16e7ee3131862e347d4814a5eb6453c5b0f32500f07cce42542d5744d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] [stdout] 5236fddb6b28284a65e96eda50138d9d53fe89841e61dcda8e56bc232e5285cc
[INFO] running `Command { std: "docker" "start" "-a" "5236fddb6b28284a65e96eda50138d9d53fe89841e61dcda8e56bc232e5285cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rayon v0.4.3
[INFO] [stderr]  Documenting cake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.18s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "5236fddb6b28284a65e96eda50138d9d53fe89841e61dcda8e56bc232e5285cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5236fddb6b28284a65e96eda50138d9d53fe89841e61dcda8e56bc232e5285cc", kill_on_drop: false }`
[INFO] [stdout] 5236fddb6b28284a65e96eda50138d9d53fe89841e61dcda8e56bc232e5285cc