[INFO] fetching crate skipchannel 2.0.1...
[INFO] documenting skipchannel-2.0.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate skipchannel 2.0.1 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate skipchannel 2.0.1 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 skipchannel 2.0.1
[INFO] finished tweaking crates.io crate skipchannel 2.0.1
[INFO] tweaked toml for crates.io crate skipchannel 2.0.1 written to /workspace/builds/worker-15/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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] f51257c15090b611acb23965f6fc7e93283c1d5e17d5616dc7e5dbc96bbd78ef
[INFO] running `Command { std: "docker" "start" "-a" "f51257c15090b611acb23965f6fc7e93283c1d5e17d5616dc7e5dbc96bbd78ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f51257c15090b611acb23965f6fc7e93283c1d5e17d5616dc7e5dbc96bbd78ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f51257c15090b611acb23965f6fc7e93283c1d5e17d5616dc7e5dbc96bbd78ef", kill_on_drop: false }`
[INFO] [stdout] f51257c15090b611acb23965f6fc7e93283c1d5e17d5616dc7e5dbc96bbd78ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] e5bf1673041108a38172016c96fab1b8316610d9925103f6524e763f1b70c115
[INFO] running `Command { std: "docker" "start" "-a" "e5bf1673041108a38172016c96fab1b8316610d9925103f6524e763f1b70c115", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting skipchannel v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "e5bf1673041108a38172016c96fab1b8316610d9925103f6524e763f1b70c115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5bf1673041108a38172016c96fab1b8316610d9925103f6524e763f1b70c115", kill_on_drop: false }`
[INFO] [stdout] e5bf1673041108a38172016c96fab1b8316610d9925103f6524e763f1b70c115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 263e55da0bb8cf2bdffd8dcae8368e3eda06308936f5fd561e78a9750bdf8ebd
[INFO] running `Command { std: "docker" "start" "-a" "263e55da0bb8cf2bdffd8dcae8368e3eda06308936f5fd561e78a9750bdf8ebd", kill_on_drop: false }`
[INFO] [stderr]  Documenting skipchannel v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "263e55da0bb8cf2bdffd8dcae8368e3eda06308936f5fd561e78a9750bdf8ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "263e55da0bb8cf2bdffd8dcae8368e3eda06308936f5fd561e78a9750bdf8ebd", kill_on_drop: false }`
[INFO] [stdout] 263e55da0bb8cf2bdffd8dcae8368e3eda06308936f5fd561e78a9750bdf8ebd