[INFO] fetching crate tree 0.4.1...
[INFO] documenting tree-0.4.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate tree 0.4.1 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate tree 0.4.1 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 tree 0.4.1
[INFO] finished tweaking crates.io crate tree 0.4.1
[INFO] tweaked toml for crates.io crate tree 0.4.1 written to /workspace/builds/worker-20/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck v0.2.27
[INFO] [stderr]   Downloaded compare v0.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 6f99229612748a8ae22c42fbbfbcf46fdf45887870aea79ab3e78fac2f9ca1a9
[INFO] running `Command { std: "docker" "start" "-a" "6f99229612748a8ae22c42fbbfbcf46fdf45887870aea79ab3e78fac2f9ca1a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f99229612748a8ae22c42fbbfbcf46fdf45887870aea79ab3e78fac2f9ca1a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f99229612748a8ae22c42fbbfbcf46fdf45887870aea79ab3e78fac2f9ca1a9", kill_on_drop: false }`
[INFO] [stdout] 6f99229612748a8ae22c42fbbfbcf46fdf45887870aea79ab3e78fac2f9ca1a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] [stdout] 54044e5502efcbb22f34ab78454094b8e6b415734f14a02d0beb34d629dd1f13
[INFO] running `Command { std: "docker" "start" "-a" "54044e5502efcbb22f34ab78454094b8e6b415734f14a02d0beb34d629dd1f13", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking compare v0.0.6
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking ordered_iter v0.1.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.2.27
[INFO] [stderr]  Documenting tree v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.10s
[INFO] running `Command { std: "docker" "inspect" "54044e5502efcbb22f34ab78454094b8e6b415734f14a02d0beb34d629dd1f13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54044e5502efcbb22f34ab78454094b8e6b415734f14a02d0beb34d629dd1f13", kill_on_drop: false }`
[INFO] [stdout] 54044e5502efcbb22f34ab78454094b8e6b415734f14a02d0beb34d629dd1f13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] e13bf97c15e5321e7e724837a770305059340e8cfbeff3e7c60319ef33fdf3d1
[INFO] running `Command { std: "docker" "start" "-a" "e13bf97c15e5321e7e724837a770305059340e8cfbeff3e7c60319ef33fdf3d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking compare v0.0.6
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking ordered_iter v0.1.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.2.27
[INFO] [stderr]  Documenting tree v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.55s
[INFO] running `Command { std: "docker" "inspect" "e13bf97c15e5321e7e724837a770305059340e8cfbeff3e7c60319ef33fdf3d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e13bf97c15e5321e7e724837a770305059340e8cfbeff3e7c60319ef33fdf3d1", kill_on_drop: false }`
[INFO] [stdout] e13bf97c15e5321e7e724837a770305059340e8cfbeff3e7c60319ef33fdf3d1