[INFO] fetching crate nostd_async 0.6.0...
[INFO] documenting nostd_async-0.6.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate nostd_async 0.6.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nostd_async 0.6.0 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 nostd_async 0.6.0
[INFO] finished tweaking crates.io crate nostd_async 0.6.0
[INFO] tweaked toml for crates.io crate nostd_async 0.6.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate nostd_async 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] b631c8fa19289594796dd9605adc67ce1d59fecda2a0ce06c21c0031eaea23b3
[INFO] running `Command { std: "docker" "start" "-a" "b631c8fa19289594796dd9605adc67ce1d59fecda2a0ce06c21c0031eaea23b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b631c8fa19289594796dd9605adc67ce1d59fecda2a0ce06c21c0031eaea23b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b631c8fa19289594796dd9605adc67ce1d59fecda2a0ce06c21c0031eaea23b3", kill_on_drop: false }`
[INFO] [stdout] b631c8fa19289594796dd9605adc67ce1d59fecda2a0ce06c21c0031eaea23b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 82ec4e152ce26375bb44edbaa06e04b6f0c103d2808db2896641f33c3ed1383f
[INFO] running `Command { std: "docker" "start" "-a" "82ec4e152ce26375bb44edbaa06e04b6f0c103d2808db2896641f33c3ed1383f", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]  Documenting nostd_async v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "82ec4e152ce26375bb44edbaa06e04b6f0c103d2808db2896641f33c3ed1383f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ec4e152ce26375bb44edbaa06e04b6f0c103d2808db2896641f33c3ed1383f", kill_on_drop: false }`
[INFO] [stdout] 82ec4e152ce26375bb44edbaa06e04b6f0c103d2808db2896641f33c3ed1383f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] c3b646ef2d4efbb6b0e6947c4fa298cbb413c013ff98fa9932ae2fed74f96d2d
[INFO] running `Command { std: "docker" "start" "-a" "c3b646ef2d4efbb6b0e6947c4fa298cbb413c013ff98fa9932ae2fed74f96d2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]  Documenting nostd_async v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "c3b646ef2d4efbb6b0e6947c4fa298cbb413c013ff98fa9932ae2fed74f96d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3b646ef2d4efbb6b0e6947c4fa298cbb413c013ff98fa9932ae2fed74f96d2d", kill_on_drop: false }`
[INFO] [stdout] c3b646ef2d4efbb6b0e6947c4fa298cbb413c013ff98fa9932ae2fed74f96d2d