[INFO] cloning repository https://github.com/huangbogeng/xgboost-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/huangbogeng/xgboost-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuangbogeng%2Fxgboost-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuangbogeng%2Fxgboost-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0c5e09e3bacc787d391ee8d06f2a5fb2f92087b
[INFO] documenting huangbogeng/xgboost-rs against da3f5c31e5535b3dc210067de660a45784ae1e9c for pr-162169
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuangbogeng%2Fxgboost-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/huangbogeng/xgboost-rs
[INFO] finished tweaking git repo https://github.com/huangbogeng/xgboost-rs
[INFO] tweaked toml for git repo https://github.com/huangbogeng/xgboost-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/huangbogeng/xgboost-rs on toolchain da3f5c31e5535b3dc210067de660a45784ae1e9c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/huangbogeng/xgboost-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 91307dd61db73e8bb1614a99c7125b2cc51e595229ce4d45c5941cae008e9b36
[INFO] running `Command { std: "docker" "start" "91307dd61db73e8bb1614a99c7125b2cc51e595229ce4d45c5941cae008e9b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91307dd61db73e8bb1614a99c7125b2cc51e595229ce4d45c5941cae008e9b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "91307dd61db73e8bb1614a99c7125b2cc51e595229ce4d45c5941cae008e9b36" "/opt/rustwide/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91307dd61db73e8bb1614a99c7125b2cc51e595229ce4d45c5941cae008e9b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "91307dd61db73e8bb1614a99c7125b2cc51e595229ce4d45c5941cae008e9b36" "/opt/rustwide/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]  Documenting xgboost-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/dataset.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / pub struct DenseMatrix {
[INFO] [stdout] 12 | |     n_rows: usize,
[INFO] [stdout] 13 | |     n_cols: usize,
[INFO] [stdout] 14 | |     data: Vec<f64>,
[INFO] [stdout] 15 | |     missing: Option<f64>,
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Dense prediction input.`
[INFO] [stdout]    = help: ends near `Dense row-major feature matrix.`
[INFO] [stdout]    = note: `#[deny(rustdoc::unportable_markdown)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/dataset.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / pub struct DenseMatrix {
[INFO] [stdout] 12 | |     n_rows: usize,
[INFO] [stdout] 13 | |     n_cols: usize,
[INFO] [stdout] 14 | |     data: Vec<f64>,
[INFO] [stdout] 15 | |     missing: Option<f64>,
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Dense row-major feature matrix.`
[INFO] [stdout]    = help: ends near `Dense row-major feature matrix.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]  --> src/error.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type Result<T> = std::result::Result<T, XgbError>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the way this is parsed might change in the future
[INFO] [stdout]   = help: starts near `Common result and error types used across the crate.`
[INFO] [stdout]   = help: ends near `Crate-local result type.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]  --> src/error.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type Result<T> = std::result::Result<T, XgbError>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the way this is parsed might change in the future
[INFO] [stdout]   = help: starts near `Crate-local result type.`
[INFO] [stdout]   = help: ends near `Crate-local result type.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout]  9 | / pub enum XgbError {
[INFO] [stdout] 10 | |     /// A shape-related invariant was violated.
[INFO] [stdout] 11 | |     InvalidShape {
[INFO] [stdout] 12 | |         context: &'static str,
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | |     Serde(serde_json::Error),
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Common result and error types used across the crate.`
[INFO] [stdout]    = help: ends near `Error type for model loading and prediction.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/error.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout]  9 | / pub enum XgbError {
[INFO] [stdout] 10 | |     /// A shape-related invariant was violated.
[INFO] [stdout] 11 | |     InvalidShape {
[INFO] [stdout] 12 | |         context: &'static str,
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | |     Serde(serde_json::Error),
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Error type for model loading and prediction.`
[INFO] [stdout]    = help: ends near `Error type for model loading and prediction.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/model.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | / pub struct XgbModel {
[INFO] [stdout] 35 | |     trees: Vec<BoosterTree>,
[INFO] [stdout] 36 | |     tree_info: Vec<usize>,
[INFO] [stdout] 37 | |     base_margins: Vec<f64>,
[INFO] [stdout] 38 | |     n_features: usize,
[INFO] [stdout] 39 | |     objective: Objective,
[INFO] [stdout] 40 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Inference-only model surface.`
[INFO] [stdout]    = help: ends near `Inference-only gradient-boosted tree model.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/model.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | / pub struct XgbModel {
[INFO] [stdout] 35 | |     trees: Vec<BoosterTree>,
[INFO] [stdout] 36 | |     tree_info: Vec<usize>,
[INFO] [stdout] 37 | |     base_margins: Vec<f64>,
[INFO] [stdout] 38 | |     n_features: usize,
[INFO] [stdout] 39 | |     objective: Objective,
[INFO] [stdout] 40 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Inference-only gradient-boosted tree model.`
[INFO] [stdout]    = help: ends near `Inference-only gradient-boosted tree model.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/tree/node.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | / pub struct BoosterTree {
[INFO] [stdout] 37 | |     pub nodes: Vec<TreeNode>,
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Tree types reusable by adapters and tests.`
[INFO] [stdout]    = help: ends near `One trained decision tree in a boosted ensemble.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/tree/node.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | / pub struct BoosterTree {
[INFO] [stdout] 37 | |     pub nodes: Vec<TreeNode>,
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `One trained decision tree in a boosted ensemble.`
[INFO] [stdout]    = help: ends near `One trained decision tree in a boosted ensemble.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/tree/node.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | / pub struct TreeNode {
[INFO] [stdout]  9 | |     pub split_feature: Option<usize>,
[INFO] [stdout] 10 | |     pub split_bin: Option<usize>,
[INFO] [stdout] 11 | |     pub split_value: Option<f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     pub default_left: bool,
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Tree types reusable by adapters and tests.`
[INFO] [stdout]    = help: ends near `One node in a decision tree.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/tree/node.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | / pub struct TreeNode {
[INFO] [stdout]  9 | |     pub split_feature: Option<usize>,
[INFO] [stdout] 10 | |     pub split_bin: Option<usize>,
[INFO] [stdout] 11 | |     pub split_value: Option<f64>,
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     pub default_left: bool,
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `One node in a decision tree.`
[INFO] [stdout]    = help: ends near `One node in a decision tree.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `xgboost-rs`
[INFO] running `Command { std: "docker" "inspect" "91307dd61db73e8bb1614a99c7125b2cc51e595229ce4d45c5941cae008e9b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91307dd61db73e8bb1614a99c7125b2cc51e595229ce4d45c5941cae008e9b36", kill_on_drop: false }`
[INFO] [stdout] 91307dd61db73e8bb1614a99c7125b2cc51e595229ce4d45c5941cae008e9b36
