[INFO] fetching crate arp-toolkit 0.2.0...
[INFO] documenting arp-toolkit-0.2.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate arp-toolkit 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate arp-toolkit 0.2.0 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 arp-toolkit 0.2.0
[INFO] finished tweaking crates.io crate arp-toolkit 0.2.0
[INFO] tweaked toml for crates.io crate arp-toolkit 0.2.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 41c2348448b56c2195eda5f9bd777e6f67d623b811f0b43d99e0cef0df94c421
[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" "41c2348448b56c2195eda5f9bd777e6f67d623b811f0b43d99e0cef0df94c421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41c2348448b56c2195eda5f9bd777e6f67d623b811f0b43d99e0cef0df94c421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c2348448b56c2195eda5f9bd777e6f67d623b811f0b43d99e0cef0df94c421", kill_on_drop: false }`
[INFO] [stdout] 41c2348448b56c2195eda5f9bd777e6f67d623b811f0b43d99e0cef0df94c421
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] e47166e68ce260dc459697b5c1e07c1d710ba2aa7eacdd72065c8681fb2d94dd
[INFO] running `Command { std: "docker" "start" "-a" "e47166e68ce260dc459697b5c1e07c1d710ba2aa7eacdd72065c8681fb2d94dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking pnet_base v0.28.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling pnet v0.28.0
[INFO] [stderr]     Checking pnet_macros_support v0.28.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking pnet_sys v0.28.0
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]     Checking ipnetwork v0.18.0
[INFO] [stderr]     Checking pnet_datalink v0.28.0
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling maybe-async v0.2.6
[INFO] [stderr]     Checking pnet_packet v0.28.0
[INFO] [stderr]     Checking pnet_transport v0.28.0
[INFO] [stderr]  Documenting arp-toolkit v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "e47166e68ce260dc459697b5c1e07c1d710ba2aa7eacdd72065c8681fb2d94dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47166e68ce260dc459697b5c1e07c1d710ba2aa7eacdd72065c8681fb2d94dd", kill_on_drop: false }`
[INFO] [stdout] e47166e68ce260dc459697b5c1e07c1d710ba2aa7eacdd72065c8681fb2d94dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 11f802a6c12b0c126f62a3597945a59cd0f1692e95c6d858ceb371dbcdcd166b
[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" "11f802a6c12b0c126f62a3597945a59cd0f1692e95c6d858ceb371dbcdcd166b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]     Checking pnet_base v0.28.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling pnet v0.28.0
[INFO] [stderr]     Checking pnet_macros_support v0.28.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking pnet_sys v0.28.0
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]     Checking ipnetwork v0.18.0
[INFO] [stderr]     Checking pnet_datalink v0.28.0
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling maybe-async v0.2.6
[INFO] [stderr]     Checking pnet_packet v0.28.0
[INFO] [stderr]     Checking pnet_transport v0.28.0
[INFO] [stderr]  Documenting arp-toolkit v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.67s
[INFO] running `Command { std: "docker" "inspect" "11f802a6c12b0c126f62a3597945a59cd0f1692e95c6d858ceb371dbcdcd166b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11f802a6c12b0c126f62a3597945a59cd0f1692e95c6d858ceb371dbcdcd166b", kill_on_drop: false }`
[INFO] [stdout] 11f802a6c12b0c126f62a3597945a59cd0f1692e95c6d858ceb371dbcdcd166b