[INFO] fetching crate sync_tools 0.1.1...
[INFO] documenting sync_tools-0.1.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate sync_tools 0.1.1 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate sync_tools 0.1.1 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 sync_tools 0.1.1
[INFO] finished tweaking crates.io crate sync_tools 0.1.1
[INFO] tweaked toml for crates.io crate sync_tools 0.1.1 written to /workspace/builds/worker-30/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 5556e8b007b2aeb0f0cac8b801bb51b28f6f276237d3c2b7599f0896f42299f0
[INFO] running `Command { std: "docker" "start" "-a" "5556e8b007b2aeb0f0cac8b801bb51b28f6f276237d3c2b7599f0896f42299f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5556e8b007b2aeb0f0cac8b801bb51b28f6f276237d3c2b7599f0896f42299f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5556e8b007b2aeb0f0cac8b801bb51b28f6f276237d3c2b7599f0896f42299f0", kill_on_drop: false }`
[INFO] [stdout] 5556e8b007b2aeb0f0cac8b801bb51b28f6f276237d3c2b7599f0896f42299f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] f5f0406c14b8b72787e4469ca4be40073de4570a41641e078eb066d70e632bb7
[INFO] running `Command { std: "docker" "start" "-a" "f5f0406c14b8b72787e4469ca4be40073de4570a41641e078eb066d70e632bb7", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking syncpool v0.1.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking byte_buffer v0.1.3
[INFO] [stderr]  Documenting sync_tools v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "f5f0406c14b8b72787e4469ca4be40073de4570a41641e078eb066d70e632bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5f0406c14b8b72787e4469ca4be40073de4570a41641e078eb066d70e632bb7", kill_on_drop: false }`
[INFO] [stdout] f5f0406c14b8b72787e4469ca4be40073de4570a41641e078eb066d70e632bb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 175dfde81ee1fd18e5b5d0e553d2dbea4b3651b03ace234f402e72671f292de2
[INFO] running `Command { std: "docker" "start" "-a" "175dfde81ee1fd18e5b5d0e553d2dbea4b3651b03ace234f402e72671f292de2", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking syncpool v0.1.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking byte_buffer v0.1.3
[INFO] [stderr]  Documenting sync_tools v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "175dfde81ee1fd18e5b5d0e553d2dbea4b3651b03ace234f402e72671f292de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "175dfde81ee1fd18e5b5d0e553d2dbea4b3651b03ace234f402e72671f292de2", kill_on_drop: false }`
[INFO] [stdout] 175dfde81ee1fd18e5b5d0e553d2dbea4b3651b03ace234f402e72671f292de2