[INFO] fetching crate tangram_tree 0.7.0...
[INFO] documenting tangram_tree-0.7.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate tangram_tree 0.7.0 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate tangram_tree 0.7.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tangram_tree 0.7.0
[INFO] finished tweaking crates.io crate tangram_tree 0.7.0
[INFO] tweaked toml for crates.io crate tangram_tree 0.7.0 written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] crate crates.io crate tangram_tree 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] [stderr]   Downloaded object v0.26.0
[INFO] [stderr]   Downloaded num-bigint v0.4.0
[INFO] [stderr]   Downloaded buffalo v0.1.0
[INFO] [stderr]   Downloaded tangram_finite v0.7.0
[INFO] [stderr]   Downloaded buffalo_macro v0.1.0
[INFO] [stderr]   Downloaded derive_deref v1.1.1
[INFO] [stderr]   Downloaded tangram_zip v0.7.0
[INFO] [stderr]   Downloaded tangram_kill_chip v0.7.0
[INFO] [stderr]   Downloaded tangram_metrics v0.7.0
[INFO] [stderr]   Downloaded tangram_progress_counter v0.7.0
[INFO] [stderr]   Downloaded tangram_table v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31ef4e08cdf5730a6e11f9913af13b2fd32c8eb7440bf59defa184fcbe7b7270
[INFO] running `Command { std: "docker" "start" "-a" "31ef4e08cdf5730a6e11f9913af13b2fd32c8eb7440bf59defa184fcbe7b7270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31ef4e08cdf5730a6e11f9913af13b2fd32c8eb7440bf59defa184fcbe7b7270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31ef4e08cdf5730a6e11f9913af13b2fd32c8eb7440bf59defa184fcbe7b7270", kill_on_drop: false }`
[INFO] [stdout] 31ef4e08cdf5730a6e11f9913af13b2fd32c8eb7440bf59defa184fcbe7b7270
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d258d142a09185100d9f339b4beaea0521945cc1f4686a57bb1547ef25c8047
[INFO] running `Command { std: "docker" "start" "-a" "2d258d142a09185100d9f339b4beaea0521945cc1f4686a57bb1547ef25c8047", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking tangram_zip v0.7.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking tangram_progress_counter v0.7.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking os_str_bytes v3.1.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking tangram_kill_chip v0.7.0
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking object v0.26.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking ndarray v0.15.3
[INFO] [stderr]    Compiling derive_deref v1.1.1
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.4
[INFO] [stderr]    Compiling buffalo_macro v0.1.0
[INFO] [stderr]     Checking clap v3.0.0-beta.4
[INFO] [stderr]     Checking tangram_metrics v0.7.0
[INFO] [stderr]     Checking buffalo v0.1.0
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking tangram_finite v0.7.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tangram_table v0.7.0
[INFO] [stderr]  Documenting tangram_tree v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tangram_tree v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> shap.rs:38:78
[INFO] [stdout]    |
[INFO] [stdout] 38 | /// This function, and the helper functions below it, are a direct port from https://github.com/slundberg/shap.
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/slundberg/shap.>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `tangram_tree`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name tangram_tree_benchmark_boston benchmarks/boston.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=69acccd4d2fc5b44 -L dependency=/opt/rustwide/target/debug/deps --extern bitvec=/opt/rustwide/target/debug/deps/libbitvec-45d3fcab1851a426.rmeta --extern buffalo=/opt/rustwide/target/debug/deps/libbuffalo-060b29f6e3876550.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-c5d811f2b39e0426.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-768244cffa2ddad5.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-a26423216ebb27ff.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-95991b74ebfbc552.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-bc3d236763400285.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-434c2ce053963223.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0affb147fb675d57.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-a70a364b5570ada0.rmeta --extern tangram_finite=/opt/rustwide/target/debug/deps/libtangram_finite-e49836e1369c30ee.rmeta --extern tangram_kill_chip=/opt/rustwide/target/debug/deps/libtangram_kill_chip-06d17d4a75d526b4.rmeta --extern tangram_metrics=/opt/rustwide/target/debug/deps/libtangram_metrics-88d420dafad9025c.rmeta --extern tangram_progress_counter=/opt/rustwide/target/debug/deps/libtangram_progress_counter-b98e85f87ed0db4c.rmeta --extern tangram_table=/opt/rustwide/target/debug/deps/libtangram_table-2602454594891c9f.rmeta --extern tangram_tree=/opt/rustwide/target/debug/deps/libtangram_tree-5520f390fc61ee13.rmeta --extern tangram_zip=/opt/rustwide/target/debug/deps/libtangram_zip-2b0a2c2f33c4bcf9.rmeta --cap-lints=warn --crate-version 0.7.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2d258d142a09185100d9f339b4beaea0521945cc1f4686a57bb1547ef25c8047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d258d142a09185100d9f339b4beaea0521945cc1f4686a57bb1547ef25c8047", kill_on_drop: false }`
[INFO] [stdout] 2d258d142a09185100d9f339b4beaea0521945cc1f4686a57bb1547ef25c8047