[INFO] fetching crate ext-string 0.1.5...
[INFO] documenting ext-string-0.1.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate ext-string 0.1.5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ext-string 0.1.5 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 ext-string 0.1.5
[INFO] finished tweaking crates.io crate ext-string 0.1.5
[INFO] tweaked toml for crates.io crate ext-string 0.1.5 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 6ebc08e6784166785b8219013d74bba2823ea48d4d558d6d87c1e5bf1d5ca7ff
[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" "6ebc08e6784166785b8219013d74bba2823ea48d4d558d6d87c1e5bf1d5ca7ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ebc08e6784166785b8219013d74bba2823ea48d4d558d6d87c1e5bf1d5ca7ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ebc08e6784166785b8219013d74bba2823ea48d4d558d6d87c1e5bf1d5ca7ff", kill_on_drop: false }`
[INFO] [stdout] 6ebc08e6784166785b8219013d74bba2823ea48d4d558d6d87c1e5bf1d5ca7ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 5e5a8ab1ab429a04badf13c0ea58377ab16b08a13bb9e970898f8ad53be449ce
[INFO] running `Command { std: "docker" "start" "-a" "5e5a8ab1ab429a04badf13c0ea58377ab16b08a13bb9e970898f8ad53be449ce", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]  Documenting ext-string v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "5e5a8ab1ab429a04badf13c0ea58377ab16b08a13bb9e970898f8ad53be449ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e5a8ab1ab429a04badf13c0ea58377ab16b08a13bb9e970898f8ad53be449ce", kill_on_drop: false }`
[INFO] [stdout] 5e5a8ab1ab429a04badf13c0ea58377ab16b08a13bb9e970898f8ad53be449ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] bb4fe8bc8ffa653927d34e9ed03ffdb6f9987834ee0ef3e9142d9366e6d535fd
[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" "bb4fe8bc8ffa653927d34e9ed03ffdb6f9987834ee0ef3e9142d9366e6d535fd", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]  Documenting ext-string v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "bb4fe8bc8ffa653927d34e9ed03ffdb6f9987834ee0ef3e9142d9366e6d535fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb4fe8bc8ffa653927d34e9ed03ffdb6f9987834ee0ef3e9142d9366e6d535fd", kill_on_drop: false }`
[INFO] [stdout] bb4fe8bc8ffa653927d34e9ed03ffdb6f9987834ee0ef3e9142d9366e6d535fd