[INFO] fetching crate pgn4 0.3.3...
[INFO] documenting pgn4-0.3.3 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate pgn4 0.3.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate pgn4 0.3.3 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 pgn4 0.3.3
[INFO] finished tweaking crates.io crate pgn4 0.3.3
[INFO] tweaked toml for crates.io crate pgn4 0.3.3 written to /workspace/builds/worker-6/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] [stderr]     Blocking waiting for file lock on package cache
[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 fen4 v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 528d57b36289f77b61f3b7e8b617c6c906c63c410c136689f647bcc391b41b60
[INFO] running `Command { std: "docker" "start" "-a" "528d57b36289f77b61f3b7e8b617c6c906c63c410c136689f647bcc391b41b60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "528d57b36289f77b61f3b7e8b617c6c906c63c410c136689f647bcc391b41b60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528d57b36289f77b61f3b7e8b617c6c906c63c410c136689f647bcc391b41b60", kill_on_drop: false }`
[INFO] [stdout] 528d57b36289f77b61f3b7e8b617c6c906c63c410c136689f647bcc391b41b60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 275229e805b05290b29893f7344219f6ca0a5e8c056afb96c8e6d5ec962cb0e1
[INFO] running `Command { std: "docker" "start" "-a" "275229e805b05290b29893f7344219f6ca0a5e8c056afb96c8e6d5ec962cb0e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking fen4 v0.7.0
[INFO] [stderr]  Documenting pgn4 v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.96s
[INFO] running `Command { std: "docker" "inspect" "275229e805b05290b29893f7344219f6ca0a5e8c056afb96c8e6d5ec962cb0e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "275229e805b05290b29893f7344219f6ca0a5e8c056afb96c8e6d5ec962cb0e1", kill_on_drop: false }`
[INFO] [stdout] 275229e805b05290b29893f7344219f6ca0a5e8c056afb96c8e6d5ec962cb0e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 088d84db3d537251dcae33a11fe423946c7161effcaa247f3ac8287ac0a38540
[INFO] running `Command { std: "docker" "start" "-a" "088d84db3d537251dcae33a11fe423946c7161effcaa247f3ac8287ac0a38540", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking fen4 v0.7.0
[INFO] [stderr]  Documenting pgn4 v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.09s
[INFO] running `Command { std: "docker" "inspect" "088d84db3d537251dcae33a11fe423946c7161effcaa247f3ac8287ac0a38540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "088d84db3d537251dcae33a11fe423946c7161effcaa247f3ac8287ac0a38540", kill_on_drop: false }`
[INFO] [stdout] 088d84db3d537251dcae33a11fe423946c7161effcaa247f3ac8287ac0a38540