[INFO] fetching crate the_book 0.1.0...
[INFO] documenting the_book-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate the_book 0.1.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate the_book 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 the_book 0.1.0
[INFO] finished tweaking crates.io crate the_book 0.1.0
[INFO] tweaked toml for crates.io crate the_book 0.1.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate the_book 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] [stderr]     Blocking waiting for file lock on package cache
[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] 7c97cbe3aee6097a4c491d12f395d739e84148c74ac35e569635b23755079bca
[INFO] running `Command { std: "docker" "start" "-a" "7c97cbe3aee6097a4c491d12f395d739e84148c74ac35e569635b23755079bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c97cbe3aee6097a4c491d12f395d739e84148c74ac35e569635b23755079bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c97cbe3aee6097a4c491d12f395d739e84148c74ac35e569635b23755079bca", kill_on_drop: false }`
[INFO] [stdout] 7c97cbe3aee6097a4c491d12f395d739e84148c74ac35e569635b23755079bca
[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] f5a5976c9092bfccc75e639a3e9c7c4080ca5065b30bdf355fb7fad9490db8a7
[INFO] running `Command { std: "docker" "start" "-a" "f5a5976c9092bfccc75e639a3e9c7c4080ca5065b30bdf355fb7fad9490db8a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]  Documenting the_book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking the_book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]  --> src/bin/ch-10-generic-types-traits-lifetimes/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 |     };
[INFO] [stdout]   |      ^ help: remove this semicolon
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-10-generic-types-traits-lifetimes/main.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-10-generic-types-traits-lifetimes/main.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-10-generic-types-traits-lifetimes/main.rs:70:6
[INFO] [stdout]    |
[INFO] [stdout] 70 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-10-generic-types-traits-lifetimes/main.rs:78:6
[INFO] [stdout]    |
[INFO] [stdout] 78 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-10-generic-types-traits-lifetimes/main.rs:83:6
[INFO] [stdout]    |
[INFO] [stdout] 83 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]  --> src/bin/ch-5-using-struct-to-structure-related-data/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 |     };
[INFO] [stdout]   |      ^ help: remove this semicolon
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-8-common-collections/main.rs:48:6
[INFO] [stdout]    |
[INFO] [stdout] 48 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-6-enums-and-pattern-matching/main.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-6-enums-and-pattern-matching/main.rs:45:6
[INFO] [stdout]    |
[INFO] [stdout] 45 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-6-enums-and-pattern-matching/main.rs:52:6
[INFO] [stdout]    |
[INFO] [stdout] 52 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/ch-6-enums-and-pattern-matching/main.rs:76:6
[INFO] [stdout]    |
[INFO] [stdout] 76 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `the_book`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ch_6_enums_and_pattern_matching src/bin/ch-6-enums-and-pattern-matching/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=ffe09ca0bd1f3b79 -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-80b466a68a211129.rmeta --extern the_book=/opt/rustwide/target/debug/deps/libthe_book-8198c6594c9a422c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f5a5976c9092bfccc75e639a3e9c7c4080ca5065b30bdf355fb7fad9490db8a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a5976c9092bfccc75e639a3e9c7c4080ca5065b30bdf355fb7fad9490db8a7", kill_on_drop: false }`
[INFO] [stdout] f5a5976c9092bfccc75e639a3e9c7c4080ca5065b30bdf355fb7fad9490db8a7