[INFO] fetching crate pieces 0.2.0...
[INFO] documenting pieces-0.2.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate pieces 0.2.0 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate pieces 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 pieces 0.2.0
[INFO] finished tweaking crates.io crate pieces 0.2.0
[INFO] tweaked toml for crates.io crate pieces 0.2.0 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate crates.io crate pieces 0.2.0 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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 877dac2b87ff61c4c8424735292d5be30435a20022ce4f40208588a76781487f
[INFO] running `Command { std: "docker" "start" "-a" "877dac2b87ff61c4c8424735292d5be30435a20022ce4f40208588a76781487f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "877dac2b87ff61c4c8424735292d5be30435a20022ce4f40208588a76781487f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "877dac2b87ff61c4c8424735292d5be30435a20022ce4f40208588a76781487f", kill_on_drop: false }`
[INFO] [stdout] 877dac2b87ff61c4c8424735292d5be30435a20022ce4f40208588a76781487f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 15431cdf12809216a0cd3426d092b496bd80a781f55da2e49ea14295c77d2654
[INFO] running `Command { std: "docker" "start" "-a" "15431cdf12809216a0cd3426d092b496bd80a781f55da2e49ea14295c77d2654", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]  Documenting pieces v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.90s
[INFO] running `Command { std: "docker" "inspect" "15431cdf12809216a0cd3426d092b496bd80a781f55da2e49ea14295c77d2654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15431cdf12809216a0cd3426d092b496bd80a781f55da2e49ea14295c77d2654", kill_on_drop: false }`
[INFO] [stdout] 15431cdf12809216a0cd3426d092b496bd80a781f55da2e49ea14295c77d2654
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 6840dc273b9c04b438b3a089936403bcc40d9c85ed0ee2e54881ccffc83ce16e
[INFO] running `Command { std: "docker" "start" "-a" "6840dc273b9c04b438b3a089936403bcc40d9c85ed0ee2e54881ccffc83ce16e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]  Documenting pieces v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.73s
[INFO] running `Command { std: "docker" "inspect" "6840dc273b9c04b438b3a089936403bcc40d9c85ed0ee2e54881ccffc83ce16e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6840dc273b9c04b438b3a089936403bcc40d9c85ed0ee2e54881ccffc83ce16e", kill_on_drop: false }`
[INFO] [stdout] 6840dc273b9c04b438b3a089936403bcc40d9c85ed0ee2e54881ccffc83ce16e