[INFO] cloning repository https://github.com/rmc8/rustbook_chap4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rmc8/rustbook_chap4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmc8%2Frustbook_chap4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmc8%2Frustbook_chap4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82b26005646a693ef1d840f6dd11909017e2ba6d
[INFO] documenting rmc8/rustbook_chap4 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmc8%2Frustbook_chap4" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rmc8/rustbook_chap4 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rmc8/rustbook_chap4
[INFO] finished tweaking git repo https://github.com/rmc8/rustbook_chap4
[INFO] tweaked toml for git repo https://github.com/rmc8/rustbook_chap4 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/rmc8/rustbook_chap4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a33a6c5b30fe02aa7076442518b377338b7fde4aecd6eba49050f18eff5bceb
[INFO] running `Command { std: "docker" "start" "-a" "1a33a6c5b30fe02aa7076442518b377338b7fde4aecd6eba49050f18eff5bceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a33a6c5b30fe02aa7076442518b377338b7fde4aecd6eba49050f18eff5bceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a33a6c5b30fe02aa7076442518b377338b7fde4aecd6eba49050f18eff5bceb", kill_on_drop: false }`
[INFO] [stdout] 1a33a6c5b30fe02aa7076442518b377338b7fde4aecd6eba49050f18eff5bceb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7b7bd97b4eac27711259d2d790e4eb2e5256226790f581860719740eecddcf4
[INFO] running `Command { std: "docker" "start" "-a" "f7b7bd97b4eac27711259d2d790e4eb2e5256226790f581860719740eecddcf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]  Documenting Chap4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `bail` in this scope
[INFO] [stdout]   --> src/bin/err_anyhow.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         bail!("it may be too large numbler");
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            anyhow::bail
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `ensure` in this scope
[INFO] [stdout]   --> src/bin/err_anyhow.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     ensure!(num_str.starts_with("1"), "first digit is not 1");
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            anyhow::ensure
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ParseInError` in module `std::num`
[INFO] [stdout]   --> src/bin/err_panic.rs:3:19
[INFO] [stdout]    |
[INFO] [stdout] 3  |       Num(std::num::ParseInError),
[INFO] [stdout]    |                     ^^^^^^^^^^^^ help: a struct with a similar name exists: `ParseIntError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `Chap4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name err_anyhow src/bin/err_anyhow.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=02677d12973dc37f -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-59327496a5147013.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-bfe990963035bea4.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-0d585400962ab874.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not document `Chap4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name err_panic src/bin/err_panic.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c7ebd50bbb729c09 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-59327496a5147013.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-bfe990963035bea4.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-0d585400962ab874.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f7b7bd97b4eac27711259d2d790e4eb2e5256226790f581860719740eecddcf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7b7bd97b4eac27711259d2d790e4eb2e5256226790f581860719740eecddcf4", kill_on_drop: false }`
[INFO] [stdout] f7b7bd97b4eac27711259d2d790e4eb2e5256226790f581860719740eecddcf4