[INFO] cloning repository https://github.com/tdransfield/wikipedia-analysis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tdransfield/wikipedia-analysis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftdransfield%2Fwikipedia-analysis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftdransfield%2Fwikipedia-analysis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8fa2dd2ea1eff86dadb364c4576bc15331db7a46
[INFO] documenting tdransfield/wikipedia-analysis against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftdransfield%2Fwikipedia-analysis" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tdransfield/wikipedia-analysis on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tdransfield/wikipedia-analysis
[INFO] finished tweaking git repo https://github.com/tdransfield/wikipedia-analysis
[INFO] tweaked toml for git repo https://github.com/tdransfield/wikipedia-analysis written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/tdransfield/wikipedia-analysis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8498368e0cd9d79b18a6f1380d93065459615446129e9089754dd0aafa2a5291
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8498368e0cd9d79b18a6f1380d93065459615446129e9089754dd0aafa2a5291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8498368e0cd9d79b18a6f1380d93065459615446129e9089754dd0aafa2a5291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8498368e0cd9d79b18a6f1380d93065459615446129e9089754dd0aafa2a5291", kill_on_drop: false }`
[INFO] [stdout] 8498368e0cd9d79b18a6f1380d93065459615446129e9089754dd0aafa2a5291
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34bc1414bdc3b903f0a7db62d963ab11aa75e7f7b3eec9638191aa5a0e595d91
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "34bc1414bdc3b903f0a7db62d963ab11aa75e7f7b3eec9638191aa5a0e595d91", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]  Documenting wikipedia-analysis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/analyze.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |       /// ```
[INFO] [stdout]     |  _________^
[INFO] [stdout] 205 | |     ///     a
[INFO] [stdout] 206 | |     ///    /  \
[INFO] [stdout] 207 | |     ///   b    c
[INFO] [stdout] 208 | |     ///         \
[INFO] [stdout] 209 | |     ///          d
[INFO] [stdout] 210 | |     /// ```
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: \
[INFO] [stdout]     = note: error from rustc: unknown start of token: \
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 204 |     /// ```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 10.28s
[INFO] running `Command { std: "docker" "inspect" "34bc1414bdc3b903f0a7db62d963ab11aa75e7f7b3eec9638191aa5a0e595d91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34bc1414bdc3b903f0a7db62d963ab11aa75e7f7b3eec9638191aa5a0e595d91", kill_on_drop: false }`
[INFO] [stdout] 34bc1414bdc3b903f0a7db62d963ab11aa75e7f7b3eec9638191aa5a0e595d91