[INFO] fetching crate lambco-bicycle-book-wordcount 0.1.0...
[INFO] documenting lambco-bicycle-book-wordcount-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate lambco-bicycle-book-wordcount 0.1.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate lambco-bicycle-book-wordcount 0.1.0 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 lambco-bicycle-book-wordcount 0.1.0
[INFO] finished tweaking crates.io crate lambco-bicycle-book-wordcount 0.1.0
[INFO] tweaked toml for crates.io crate lambco-bicycle-book-wordcount 0.1.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate lambco-bicycle-book-wordcount 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] d449a509e65b719d34b6db0dc75277203933cb23b06d5a6f97710ea3a13cbc84
[INFO] running `Command { std: "docker" "start" "-a" "d449a509e65b719d34b6db0dc75277203933cb23b06d5a6f97710ea3a13cbc84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d449a509e65b719d34b6db0dc75277203933cb23b06d5a6f97710ea3a13cbc84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d449a509e65b719d34b6db0dc75277203933cb23b06d5a6f97710ea3a13cbc84", kill_on_drop: false }`
[INFO] [stdout] d449a509e65b719d34b6db0dc75277203933cb23b06d5a6f97710ea3a13cbc84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 088ec926690c523877346ab64c9ebc94f148893482a0f499aff9af524004b208
[INFO] running `Command { std: "docker" "start" "-a" "088ec926690c523877346ab64c9ebc94f148893482a0f499aff9af524004b208", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]  Documenting lambco-bicycle-book-wordcount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.08s
[INFO] running `Command { std: "docker" "inspect" "088ec926690c523877346ab64c9ebc94f148893482a0f499aff9af524004b208", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "088ec926690c523877346ab64c9ebc94f148893482a0f499aff9af524004b208", kill_on_drop: false }`
[INFO] [stdout] 088ec926690c523877346ab64c9ebc94f148893482a0f499aff9af524004b208
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] bcbf18a1111af8bd770377d205123606e4ddb91210518fab1b753e72fa3c0c32
[INFO] running `Command { std: "docker" "start" "-a" "bcbf18a1111af8bd770377d205123606e4ddb91210518fab1b753e72fa3c0c32", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]  Documenting lambco-bicycle-book-wordcount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.98s
[INFO] running `Command { std: "docker" "inspect" "bcbf18a1111af8bd770377d205123606e4ddb91210518fab1b753e72fa3c0c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcbf18a1111af8bd770377d205123606e4ddb91210518fab1b753e72fa3c0c32", kill_on_drop: false }`
[INFO] [stdout] bcbf18a1111af8bd770377d205123606e4ddb91210518fab1b753e72fa3c0c32