[INFO] fetching crate gbdt 0.1.1...
[INFO] documenting gbdt-0.1.1 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate gbdt 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gbdt 0.1.1 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gbdt 0.1.1
[INFO] finished tweaking crates.io crate gbdt 0.1.1
[INFO] tweaked toml for crates.io crate gbdt 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87a700aeee65e874ac17735dfbe7cca23ffba79a983c47ff503a49a00aac0329
[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" "87a700aeee65e874ac17735dfbe7cca23ffba79a983c47ff503a49a00aac0329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87a700aeee65e874ac17735dfbe7cca23ffba79a983c47ff503a49a00aac0329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87a700aeee65e874ac17735dfbe7cca23ffba79a983c47ff503a49a00aac0329", kill_on_drop: false }`
[INFO] [stdout] 87a700aeee65e874ac17735dfbe7cca23ffba79a983c47ff503a49a00aac0329
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25115a38a81273fe633d10ee6b5aad64dce54581f6a9840f8beb109077bf2cd4
[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" "25115a38a81273fe633d10ee6b5aad64dce54581f6a9840f8beb109077bf2cd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]  Documenting gbdt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/decision_tree.rs:272:26
[INFO] [stdout]     |
[INFO] [stdout] 272 |     /// ordered_features[i] is the data sorted by (i+1)th feature.
[INFO] [stdout]     |                          ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/decision_tree.rs:278:21
[INFO] [stdout]     |
[INFO] [stdout] 278 |     /// cache_value[i] is the (i+1)th sample's `CacheValue`
[INFO] [stdout]     |                     ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/decision_tree.rs:280:22
[INFO] [stdout]     |
[INFO] [stdout] 280 |     /// cache_target[i] is the (i+1)th sample's `target` value (not the label). Organizing the `target` and `CacheValue` together will ha...
[INFO] [stdout]     |                      ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/decision_tree.rs:282:17
[INFO] [stdout]     |
[INFO] [stdout] 282 |     /// loigt_c[i] is the (i+1)th sample's logit value. let y = target.abs(); let logit_value = y * (2.0 - y) * weight;
[INFO] [stdout]     |                 ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/decision_tree.rs:606:26
[INFO] [stdout]     |
[INFO] [stdout] 606 |     /// ordered_features[i] is the data sorted by (i+1)th feature.
[INFO] [stdout]     |                          ^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]     --> src/decision_tree.rs:1242:68
[INFO] [stdout]      |
[INFO] [stdout] 1242 |     /// predicted values. If the `i` is in the subset, then output[i] is the prediction.
[INFO] [stdout]      |                                                                    ^ cannot be resolved, ignoring
[INFO] [stdout]      |
[INFO] [stdout]      = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[i]` cannot be resolved, ignoring it.
[INFO] [stdout]     --> src/decision_tree.rs:1243:50
[INFO] [stdout]      |
[INFO] [stdout] 1243 |     /// If `i` is not in the subset, then output[i] is 0.0
[INFO] [stdout]      |                                                  ^ cannot be resolved, ignoring
[INFO] [stdout]      |
[INFO] [stdout]      = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.98s
[INFO] running `Command { std: "docker" "inspect" "25115a38a81273fe633d10ee6b5aad64dce54581f6a9840f8beb109077bf2cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25115a38a81273fe633d10ee6b5aad64dce54581f6a9840f8beb109077bf2cd4", kill_on_drop: false }`
[INFO] [stdout] 25115a38a81273fe633d10ee6b5aad64dce54581f6a9840f8beb109077bf2cd4