[INFO] cloning repository https://github.com/aver803bath5/rust_homework_of_ch8-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aver803bath5/rust_homework_of_ch8-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faver803bath5%2Frust_homework_of_ch8-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faver803bath5%2Frust_homework_of_ch8-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3f9533c814e25f78bd118e9f9623e45276aa6a0
[INFO] documenting aver803bath5/rust_homework_of_ch8-1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faver803bath5%2Frust_homework_of_ch8-1" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aver803bath5/rust_homework_of_ch8-1 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 git repo https://github.com/aver803bath5/rust_homework_of_ch8-1
[INFO] finished tweaking git repo https://github.com/aver803bath5/rust_homework_of_ch8-1
[INFO] tweaked toml for git repo https://github.com/aver803bath5/rust_homework_of_ch8-1 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/aver803bath5/rust_homework_of_ch8-1 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-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] e0a705a62dc43cf8cbb94d38f40ca3ae50e18f244ac74720e75fd257907c37a4
[INFO] running `Command { std: "docker" "start" "-a" "e0a705a62dc43cf8cbb94d38f40ca3ae50e18f244ac74720e75fd257907c37a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0a705a62dc43cf8cbb94d38f40ca3ae50e18f244ac74720e75fd257907c37a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0a705a62dc43cf8cbb94d38f40ca3ae50e18f244ac74720e75fd257907c37a4", kill_on_drop: false }`
[INFO] [stdout] e0a705a62dc43cf8cbb94d38f40ca3ae50e18f244ac74720e75fd257907c37a4
[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] 60e81348878a42e7f37e98e71a6340aa266085c8abf0f5671bccb1982e7eecd3
[INFO] running `Command { std: "docker" "start" "-a" "60e81348878a42e7f37e98e71a6340aa266085c8abf0f5671bccb1982e7eecd3", kill_on_drop: false }`
[INFO] [stderr]  Documenting collection_hw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]   --> src/string_convert/mod.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  |   /// ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 10 | | /// // The first consonant of each word is moved to the end of the word and “a
[INFO] [stdout] 11 | | /// // is added, so “first” becomes “irst-fay.” Words that start with a vowel have
[INFO] [stdout] 12 | | /// //“hay” added to the end instead (“apple” becomes “apple-hay”).
[INFO] [stdout] 13 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 9  | /// ```text
[INFO] [stdout]    |        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "60e81348878a42e7f37e98e71a6340aa266085c8abf0f5671bccb1982e7eecd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60e81348878a42e7f37e98e71a6340aa266085c8abf0f5671bccb1982e7eecd3", kill_on_drop: false }`
[INFO] [stdout] 60e81348878a42e7f37e98e71a6340aa266085c8abf0f5671bccb1982e7eecd3