[INFO] fetching crate scan4df 0.2.1...
[INFO] documenting scan4df-0.2.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate scan4df 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate scan4df 0.2.1 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scan4df 0.2.1
[INFO] finished tweaking crates.io crate scan4df 0.2.1
[INFO] tweaked toml for crates.io crate scan4df 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate scan4df 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta-2022-05-20" "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] db3610ee67a465d8e09bfd079553702af9bef8e85bb9a81a5b1c7e59f6cf09e0
[INFO] running `Command { std: "docker" "start" "-a" "db3610ee67a465d8e09bfd079553702af9bef8e85bb9a81a5b1c7e59f6cf09e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db3610ee67a465d8e09bfd079553702af9bef8e85bb9a81a5b1c7e59f6cf09e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3610ee67a465d8e09bfd079553702af9bef8e85bb9a81a5b1c7e59f6cf09e0", kill_on_drop: false }`
[INFO] [stdout] db3610ee67a465d8e09bfd079553702af9bef8e85bb9a81a5b1c7e59f6cf09e0
[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" "+beta-2022-05-20" "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] 82660f0082fb7278258322529256bc6c509b3977684491451949b246124789fc
[INFO] running `Command { std: "docker" "start" "-a" "82660f0082fb7278258322529256bc6c509b3977684491451949b246124789fc", kill_on_drop: false }`
[INFO] [stderr]  Documenting scan4df v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "82660f0082fb7278258322529256bc6c509b3977684491451949b246124789fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82660f0082fb7278258322529256bc6c509b3977684491451949b246124789fc", kill_on_drop: false }`
[INFO] [stdout] 82660f0082fb7278258322529256bc6c509b3977684491451949b246124789fc
[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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--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] 7adbcd39ffaab92cd7eefaf953c36a36d4197557d326d3a8e72ad46f4f899c9f
[INFO] running `Command { std: "docker" "start" "-a" "7adbcd39ffaab92cd7eefaf953c36a36d4197557d326d3a8e72ad46f4f899c9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking sub-strs v0.23.0
[INFO] [stderr]     Checking dia-files v0.11.1
[INFO] [stderr]     Checking kib v4.0.0
[INFO] [stderr]     Checking dia-args v0.51.6
[INFO] [stderr]     Checking zeros v7.1.0
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]  Documenting scan4df v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.57s
[INFO] running `Command { std: "docker" "inspect" "7adbcd39ffaab92cd7eefaf953c36a36d4197557d326d3a8e72ad46f4f899c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7adbcd39ffaab92cd7eefaf953c36a36d4197557d326d3a8e72ad46f4f899c9f", kill_on_drop: false }`
[INFO] [stdout] 7adbcd39ffaab92cd7eefaf953c36a36d4197557d326d3a8e72ad46f4f899c9f