[INFO] fetching crate vercomp 0.5.0...
[INFO] documenting vercomp-0.5.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate vercomp 0.5.0 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate vercomp 0.5.0 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 vercomp 0.5.0
[INFO] finished tweaking crates.io crate vercomp 0.5.0
[INFO] tweaked toml for crates.io crate vercomp 0.5.0 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate crates.io crate vercomp 0.5.0 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] 0c55f4c2d685805bf60c9ca303ed99148042220db8c62c8288ce8e3402eab50b
[INFO] running `Command { std: "docker" "start" "-a" "0c55f4c2d685805bf60c9ca303ed99148042220db8c62c8288ce8e3402eab50b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c55f4c2d685805bf60c9ca303ed99148042220db8c62c8288ce8e3402eab50b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c55f4c2d685805bf60c9ca303ed99148042220db8c62c8288ce8e3402eab50b", kill_on_drop: false }`
[INFO] [stdout] 0c55f4c2d685805bf60c9ca303ed99148042220db8c62c8288ce8e3402eab50b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] 6660cb1e774200a9c5dfe9921f040eb78e8f70a3e19d03f8875eb1ccad036ec2
[INFO] running `Command { std: "docker" "start" "-a" "6660cb1e774200a9c5dfe9921f040eb78e8f70a3e19d03f8875eb1ccad036ec2", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]  Documenting vercomp v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.57s
[INFO] running `Command { std: "docker" "inspect" "6660cb1e774200a9c5dfe9921f040eb78e8f70a3e19d03f8875eb1ccad036ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6660cb1e774200a9c5dfe9921f040eb78e8f70a3e19d03f8875eb1ccad036ec2", kill_on_drop: false }`
[INFO] [stdout] 6660cb1e774200a9c5dfe9921f040eb78e8f70a3e19d03f8875eb1ccad036ec2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] d8403f7e50d4885a9b5e58dc0790c293c2ef455a62e6e9c806a526c3dd60d0c7
[INFO] running `Command { std: "docker" "start" "-a" "d8403f7e50d4885a9b5e58dc0790c293c2ef455a62e6e9c806a526c3dd60d0c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]  Documenting vercomp v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
[INFO] running `Command { std: "docker" "inspect" "d8403f7e50d4885a9b5e58dc0790c293c2ef455a62e6e9c806a526c3dd60d0c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8403f7e50d4885a9b5e58dc0790c293c2ef455a62e6e9c806a526c3dd60d0c7", kill_on_drop: false }`
[INFO] [stdout] d8403f7e50d4885a9b5e58dc0790c293c2ef455a62e6e9c806a526c3dd60d0c7