[INFO] fetching crate kcp 0.4.13...
[INFO] documenting kcp-0.4.13 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate kcp 0.4.13 into /workspace/builds/worker-38/source
[INFO] validating manifest of crates.io crate kcp 0.4.13 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 kcp 0.4.13
[INFO] finished tweaking crates.io crate kcp 0.4.13
[INFO] tweaked toml for crates.io crate kcp 0.4.13 written to /workspace/builds/worker-38/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] [stderr]     Blocking waiting for file lock on package cache
[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-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] bcca32af088874fcd1a658e7c334a760d977f4f95f70650e94ca348acf9c2b1f
[INFO] running `Command { std: "docker" "start" "-a" "bcca32af088874fcd1a658e7c334a760d977f4f95f70650e94ca348acf9c2b1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcca32af088874fcd1a658e7c334a760d977f4f95f70650e94ca348acf9c2b1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcca32af088874fcd1a658e7c334a760d977f4f95f70650e94ca348acf9c2b1f", kill_on_drop: false }`
[INFO] [stdout] bcca32af088874fcd1a658e7c334a760d977f4f95f70650e94ca348acf9c2b1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] dce98393805d55d26c8f2b0beb68a42bf74cb0151145319590ffabdaf9ae3051
[INFO] running `Command { std: "docker" "start" "-a" "dce98393805d55d26c8f2b0beb68a42bf74cb0151145319590ffabdaf9ae3051", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]  Documenting kcp v0.4.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "dce98393805d55d26c8f2b0beb68a42bf74cb0151145319590ffabdaf9ae3051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce98393805d55d26c8f2b0beb68a42bf74cb0151145319590ffabdaf9ae3051", kill_on_drop: false }`
[INFO] [stdout] dce98393805d55d26c8f2b0beb68a42bf74cb0151145319590ffabdaf9ae3051
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] 11edcf71379feb66e5ee2613f975dadfc98f008983225c733d55823d0614c3f7
[INFO] running `Command { std: "docker" "start" "-a" "11edcf71379feb66e5ee2613f975dadfc98f008983225c733d55823d0614c3f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]  Documenting kcp v0.4.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "11edcf71379feb66e5ee2613f975dadfc98f008983225c733d55823d0614c3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11edcf71379feb66e5ee2613f975dadfc98f008983225c733d55823d0614c3f7", kill_on_drop: false }`
[INFO] [stdout] 11edcf71379feb66e5ee2613f975dadfc98f008983225c733d55823d0614c3f7