[INFO] fetching crate ergo_sys 0.0.1...
[INFO] documenting ergo_sys-0.0.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate ergo_sys 0.0.1 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate ergo_sys 0.0.1 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ergo_sys 0.0.1
[INFO] finished tweaking crates.io crate ergo_sys 0.0.1
[INFO] tweaked toml for crates.io crate ergo_sys 0.0.1 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4df293699d9e577fa45a845f6cec870941c1e874b4516b8d673afc4b749c8fa
[INFO] running `Command { std: "docker" "start" "-a" "a4df293699d9e577fa45a845f6cec870941c1e874b4516b8d673afc4b749c8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4df293699d9e577fa45a845f6cec870941c1e874b4516b8d673afc4b749c8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4df293699d9e577fa45a845f6cec870941c1e874b4516b8d673afc4b749c8fa", kill_on_drop: false }`
[INFO] [stdout] a4df293699d9e577fa45a845f6cec870941c1e874b4516b8d673afc4b749c8fa
[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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9df62539baf7618e41c5c900e04f19107e3364a006525605d8cb91d229979d8d
[INFO] running `Command { std: "docker" "start" "-a" "9df62539baf7618e41c5c900e04f19107e3364a006525605d8cb91d229979d8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking nix v0.24.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking ctrlc v3.2.2
[INFO] [stderr]  Documenting ergo_sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.97s
[INFO] running `Command { std: "docker" "inspect" "9df62539baf7618e41c5c900e04f19107e3364a006525605d8cb91d229979d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9df62539baf7618e41c5c900e04f19107e3364a006525605d8cb91d229979d8d", kill_on_drop: false }`
[INFO] [stdout] 9df62539baf7618e41c5c900e04f19107e3364a006525605d8cb91d229979d8d
[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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 1fa9a1c7a4c15edc4dc6242eaf655167ca8848221bd479633564f99cbf0bf8ba
[INFO] running `Command { std: "docker" "start" "-a" "1fa9a1c7a4c15edc4dc6242eaf655167ca8848221bd479633564f99cbf0bf8ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking nix v0.24.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking ctrlc v3.2.2
[INFO] [stderr]  Documenting ergo_sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.77s
[INFO] running `Command { std: "docker" "inspect" "1fa9a1c7a4c15edc4dc6242eaf655167ca8848221bd479633564f99cbf0bf8ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa9a1c7a4c15edc4dc6242eaf655167ca8848221bd479633564f99cbf0bf8ba", kill_on_drop: false }`
[INFO] [stdout] 1fa9a1c7a4c15edc4dc6242eaf655167ca8848221bd479633564f99cbf0bf8ba