[INFO] fetching crate hourglass 0.8.0...
[INFO] documenting hourglass-0.8.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate hourglass 0.8.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate hourglass 0.8.0 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 hourglass 0.8.0
[INFO] finished tweaking crates.io crate hourglass 0.8.0
[INFO] tweaked toml for crates.io crate hourglass 0.8.0 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] b35526fd6a6328fa87e199c6a8c6a97a393dbd81a9f7442c5eb9d40827f7c4ba
[INFO] running `Command { std: "docker" "start" "-a" "b35526fd6a6328fa87e199c6a8c6a97a393dbd81a9f7442c5eb9d40827f7c4ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b35526fd6a6328fa87e199c6a8c6a97a393dbd81a9f7442c5eb9d40827f7c4ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b35526fd6a6328fa87e199c6a8c6a97a393dbd81a9f7442c5eb9d40827f7c4ba", kill_on_drop: false }`
[INFO] [stdout] b35526fd6a6328fa87e199c6a8c6a97a393dbd81a9f7442c5eb9d40827f7c4ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] ec50c9f340bb133697391adb982ed2b88754638eb8701cff8f7da723ee723791
[INFO] running `Command { std: "docker" "start" "-a" "ec50c9f340bb133697391adb982ed2b88754638eb8701cff8f7da723ee723791", kill_on_drop: false }`
[INFO] [stderr]  Documenting hourglass v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "ec50c9f340bb133697391adb982ed2b88754638eb8701cff8f7da723ee723791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec50c9f340bb133697391adb982ed2b88754638eb8701cff8f7da723ee723791", kill_on_drop: false }`
[INFO] [stdout] ec50c9f340bb133697391adb982ed2b88754638eb8701cff8f7da723ee723791
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 06a079f571b3a8c5c73d40a343060e4323ebac00ee4e6bfe5b7ab5c0ccfb947f
[INFO] running `Command { std: "docker" "start" "-a" "06a079f571b3a8c5c73d40a343060e4323ebac00ee4e6bfe5b7ab5c0ccfb947f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]  Documenting hourglass v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.66s
[INFO] running `Command { std: "docker" "inspect" "06a079f571b3a8c5c73d40a343060e4323ebac00ee4e6bfe5b7ab5c0ccfb947f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06a079f571b3a8c5c73d40a343060e4323ebac00ee4e6bfe5b7ab5c0ccfb947f", kill_on_drop: false }`
[INFO] [stdout] 06a079f571b3a8c5c73d40a343060e4323ebac00ee4e6bfe5b7ab5c0ccfb947f