[INFO] fetching crate dfu 0.4.2...
[INFO] documenting dfu-0.4.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate dfu 0.4.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dfu 0.4.2 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 dfu 0.4.2
[INFO] finished tweaking crates.io crate dfu 0.4.2
[INFO] tweaked toml for crates.io crate dfu 0.4.2 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] db4fd9abdf145275c1c8a5877366a6b7af21126b85ea5f4f3cf230e361f5a7ee
[INFO] running `Command { std: "docker" "start" "-a" "db4fd9abdf145275c1c8a5877366a6b7af21126b85ea5f4f3cf230e361f5a7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db4fd9abdf145275c1c8a5877366a6b7af21126b85ea5f4f3cf230e361f5a7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db4fd9abdf145275c1c8a5877366a6b7af21126b85ea5f4f3cf230e361f5a7ee", kill_on_drop: false }`
[INFO] [stdout] db4fd9abdf145275c1c8a5877366a6b7af21126b85ea5f4f3cf230e361f5a7ee
[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] cc35927bb644d51f6f168bb1a848a59063cad851aebd105465a06693c2a3ee2f
[INFO] running `Command { std: "docker" "start" "-a" "cc35927bb644d51f6f168bb1a848a59063cad851aebd105465a06693c2a3ee2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking sysfs-serde v0.2.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking usbapi v0.4.2
[INFO] [stderr]  Documenting dfu v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.40s
[INFO] running `Command { std: "docker" "inspect" "cc35927bb644d51f6f168bb1a848a59063cad851aebd105465a06693c2a3ee2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc35927bb644d51f6f168bb1a848a59063cad851aebd105465a06693c2a3ee2f", kill_on_drop: false }`
[INFO] [stdout] cc35927bb644d51f6f168bb1a848a59063cad851aebd105465a06693c2a3ee2f
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 11d96bcbcc59858bccba6dcead09fd1f794a3224943f6b607dcc8fffe03c189a
[INFO] running `Command { std: "docker" "start" "-a" "11d96bcbcc59858bccba6dcead09fd1f794a3224943f6b607dcc8fffe03c189a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking sysfs-serde v0.2.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking usbapi v0.4.2
[INFO] [stderr]  Documenting dfu v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.63s
[INFO] running `Command { std: "docker" "inspect" "11d96bcbcc59858bccba6dcead09fd1f794a3224943f6b607dcc8fffe03c189a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d96bcbcc59858bccba6dcead09fd1f794a3224943f6b607dcc8fffe03c189a", kill_on_drop: false }`
[INFO] [stdout] 11d96bcbcc59858bccba6dcead09fd1f794a3224943f6b607dcc8fffe03c189a