[INFO] fetching crate chn 0.1.1...
[INFO] documenting chn-0.1.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate chn 0.1.1 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate chn 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 chn 0.1.1
[INFO] finished tweaking crates.io crate chn 0.1.1
[INFO] tweaked toml for crates.io crate chn 0.1.1 written to /workspace/builds/worker-76/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-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 451d30240b39b7e80a369d870fbe4bdb6b84b87acd778cc7b06f7cc041e72c78
[INFO] running `Command { std: "docker" "start" "-a" "451d30240b39b7e80a369d870fbe4bdb6b84b87acd778cc7b06f7cc041e72c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "451d30240b39b7e80a369d870fbe4bdb6b84b87acd778cc7b06f7cc041e72c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "451d30240b39b7e80a369d870fbe4bdb6b84b87acd778cc7b06f7cc041e72c78", kill_on_drop: false }`
[INFO] [stdout] 451d30240b39b7e80a369d870fbe4bdb6b84b87acd778cc7b06f7cc041e72c78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 51bdcb7fa6a00a8e98c26de96560f4a72459d068fabd72e19f5491c048fe15cc
[INFO] running `Command { std: "docker" "start" "-a" "51bdcb7fa6a00a8e98c26de96560f4a72459d068fabd72e19f5491c048fe15cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting chn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "51bdcb7fa6a00a8e98c26de96560f4a72459d068fabd72e19f5491c048fe15cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51bdcb7fa6a00a8e98c26de96560f4a72459d068fabd72e19f5491c048fe15cc", kill_on_drop: false }`
[INFO] [stdout] 51bdcb7fa6a00a8e98c26de96560f4a72459d068fabd72e19f5491c048fe15cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 934e7a5f843f2e3164e8a210251baedf6144cdc0e2692397f415fdadd09f8ef2
[INFO] running `Command { std: "docker" "start" "-a" "934e7a5f843f2e3164e8a210251baedf6144cdc0e2692397f415fdadd09f8ef2", kill_on_drop: false }`
[INFO] [stderr]  Documenting chn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "934e7a5f843f2e3164e8a210251baedf6144cdc0e2692397f415fdadd09f8ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "934e7a5f843f2e3164e8a210251baedf6144cdc0e2692397f415fdadd09f8ef2", kill_on_drop: false }`
[INFO] [stdout] 934e7a5f843f2e3164e8a210251baedf6144cdc0e2692397f415fdadd09f8ef2