[INFO] cloning repository https://github.com/robertecurtin/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robertecurtin/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertecurtin%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertecurtin%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e4037767a8cf62da0d658f55e767927e1ae037b
[INFO] documenting robertecurtin/learning-rust 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%2Frobertecurtin%2Flearning-rust" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robertecurtin/learning-rust 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/robertecurtin/learning-rust
[INFO] finished tweaking git repo https://github.com/robertecurtin/learning-rust
[INFO] tweaked toml for git repo https://github.com/robertecurtin/learning-rust written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/robertecurtin/learning-rust 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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] 730e7b743eee2acaec1cc5e3691650349dfba0fffa1ad198d1127aa24513bae9
[INFO] running `Command { std: "docker" "start" "-a" "730e7b743eee2acaec1cc5e3691650349dfba0fffa1ad198d1127aa24513bae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "730e7b743eee2acaec1cc5e3691650349dfba0fffa1ad198d1127aa24513bae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730e7b743eee2acaec1cc5e3691650349dfba0fffa1ad198d1127aa24513bae9", kill_on_drop: false }`
[INFO] [stdout] 730e7b743eee2acaec1cc5e3691650349dfba0fffa1ad198d1127aa24513bae9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] 463bf91ae6488aa2418bc23b321692dceb115d7eff56dc621d906cba243eecb6
[INFO] running `Command { std: "docker" "start" "-a" "463bf91ae6488aa2418bc23b321692dceb115d7eff56dc621d906cba243eecb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]  Documenting hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/chapter5.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |   struct ALibrary {};
[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/chapter5.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 |   };
[INFO] [stdout]    |    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/chapter5.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 |   };
[INFO] [stdout]    |    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/chapter6.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 |   };
[INFO] [stdout]    |    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
[INFO] running `Command { std: "docker" "inspect" "463bf91ae6488aa2418bc23b321692dceb115d7eff56dc621d906cba243eecb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "463bf91ae6488aa2418bc23b321692dceb115d7eff56dc621d906cba243eecb6", kill_on_drop: false }`
[INFO] [stdout] 463bf91ae6488aa2418bc23b321692dceb115d7eff56dc621d906cba243eecb6