[INFO] fetching crate uart_16550 0.2.18...
[INFO] documenting uart_16550-0.2.18 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate uart_16550 0.2.18 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate uart_16550 0.2.18 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] removed /workspace/builds/worker-31/source/rust-toolchain
[INFO] started tweaking crates.io crate uart_16550 0.2.18
[INFO] finished tweaking crates.io crate uart_16550 0.2.18
[INFO] tweaked toml for crates.io crate uart_16550 0.2.18 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] 89440ecb66dbb2d356bbd10b95dfdcf8be4c3379742b57ca827e8e77b28d23d9
[INFO] running `Command { std: "docker" "start" "-a" "89440ecb66dbb2d356bbd10b95dfdcf8be4c3379742b57ca827e8e77b28d23d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89440ecb66dbb2d356bbd10b95dfdcf8be4c3379742b57ca827e8e77b28d23d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89440ecb66dbb2d356bbd10b95dfdcf8be4c3379742b57ca827e8e77b28d23d9", kill_on_drop: false }`
[INFO] [stdout] 89440ecb66dbb2d356bbd10b95dfdcf8be4c3379742b57ca827e8e77b28d23d9
[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] 0b5e183301bd2afc795cf591dfe80640d5761ad59bc98dc50482d2cf2431211f
[INFO] running `Command { std: "docker" "start" "-a" "0b5e183301bd2afc795cf591dfe80640d5761ad59bc98dc50482d2cf2431211f", kill_on_drop: false }`
[INFO] [stderr]     Checking volatile v0.4.5
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]     Checking x86_64 v0.14.9
[INFO] [stderr]  Documenting uart_16550 v0.2.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "0b5e183301bd2afc795cf591dfe80640d5761ad59bc98dc50482d2cf2431211f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5e183301bd2afc795cf591dfe80640d5761ad59bc98dc50482d2cf2431211f", kill_on_drop: false }`
[INFO] [stdout] 0b5e183301bd2afc795cf591dfe80640d5761ad59bc98dc50482d2cf2431211f
[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" "--" "--cfg" "docsrs" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 14785701096a225ae24f62f1ee00044622774c63a5dba4ff2cb2c7176c9928d7
[INFO] running `Command { std: "docker" "start" "-a" "14785701096a225ae24f62f1ee00044622774c63a5dba4ff2cb2c7176c9928d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking volatile v0.4.5
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking x86_64 v0.14.9
[INFO] [stderr]  Documenting uart_16550 v0.2.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.90s
[INFO] running `Command { std: "docker" "inspect" "14785701096a225ae24f62f1ee00044622774c63a5dba4ff2cb2c7176c9928d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14785701096a225ae24f62f1ee00044622774c63a5dba4ff2cb2c7176c9928d7", kill_on_drop: false }`
[INFO] [stdout] 14785701096a225ae24f62f1ee00044622774c63a5dba4ff2cb2c7176c9928d7