[INFO] cloning repository https://github.com/RheoTommy/at_coder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RheoTommy/at_coder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRheoTommy%2Fat_coder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRheoTommy%2Fat_coder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c91f977e2518503fd5dbaf63c1852162b07dad9c
[INFO] documenting RheoTommy/at_coder against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRheoTommy%2Fat_coder" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
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Checking out files: 100% (26596/26596), done.
[INFO] validating manifest of git repo https://github.com/RheoTommy/at_coder on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RheoTommy/at_coder
[INFO] finished tweaking git repo https://github.com/RheoTommy/at_coder
[INFO] tweaked toml for git repo https://github.com/RheoTommy/at_coder written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/RheoTommy/at_coder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 044ef15877c0207b0293ad959fd129caa79e90f278b2b26ac3833068fb297185
[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" "044ef15877c0207b0293ad959fd129caa79e90f278b2b26ac3833068fb297185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "044ef15877c0207b0293ad959fd129caa79e90f278b2b26ac3833068fb297185", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "044ef15877c0207b0293ad959fd129caa79e90f278b2b26ac3833068fb297185", kill_on_drop: false }`
[INFO] [stdout] 044ef15877c0207b0293ad959fd129caa79e90f278b2b26ac3833068fb297185
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93c0ca9dfeb00f87689d57f5ff01f7dfebaf049ac04c3a9d992dbed78e7b9347
[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" "93c0ca9dfeb00f87689d57f5ff01f7dfebaf049ac04c3a9d992dbed78e7b9347", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking whiteread v0.5.0
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]    Compiling cargo-snippet v0.6.5
[INFO] [stderr]     Checking bitset-fixed v0.1.0
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling im-rc v14.3.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]    Compiling proconio-derive v0.1.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking rand_hc v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking ndarray v0.13.0
[INFO] [stderr]     Checking proconio v0.3.6
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking nalgebra v0.20.0
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]     Checking at_coder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting at_coder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `at_coder`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name a src/bin/a.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern alga=/opt/rustwide/target/debug/deps/libalga-08090f6abefe967a.rmeta --extern ascii=/opt/rustwide/target/debug/deps/libascii-6ef1f27b557d87b1.rmeta --extern at_coder=/opt/rustwide/target/debug/deps/libat_coder-284fb014420c8fa9.rmeta --extern bitset_fixed=/opt/rustwide/target/debug/deps/libbitset_fixed-c5828f69f5c51278.rmeta --extern cargo_snippet=/opt/rustwide/target/debug/deps/libcargo_snippet-90aeb9191e593309.so --extern either=/opt/rustwide/target/debug/deps/libeither-ccde357106a7a978.rmeta --extern fixedbitset=/opt/rustwide/target/debug/deps/libfixedbitset-9b135ac38d1a8981.rmeta --extern getrandom=/opt/rustwide/target/debug/deps/libgetrandom-94c9470542bd1f2f.rmeta --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-24f593b8c0417e47.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-b9d0ecaf20a1808a.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-01042db32cd4c131.rmeta --extern itertools_num=/opt/rustwide/target/debug/deps/libitertools_num-c80563e700cc3a3d.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-72923b2d9aa06af7.rmeta --extern libm=/opt/rustwide/target/debug/deps/liblibm-c2caaf3feb6f5975.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-6294c5e3b8c58b26.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-0baefa528a8d5425.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-523a4b034ed52ac7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-5eb48e8a2e786568.rmeta --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-ef0bfe1084c706f9.rmeta --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-2dddd7cc09141e8c.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-ca7e4c50ff149d13.so --extern num_integer=/opt/rustwide/target/debug/deps/libnum_integer-896307a88418a9c1.rmeta --extern num_iter=/opt/rustwide/target/debug/deps/libnum_iter-25dfb4dcc9eb32ab.rmeta --extern num_rational=/opt/rustwide/target/debug/deps/libnum_rational-2ee92a57c1b52f98.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-29ee8af6148416ce.rmeta --extern ordered_float=/opt/rustwide/target/debug/deps/libordered_float-5f946404df1a8f28.rmeta --extern permutohedron=/opt/rustwide/target/debug/deps/libpermutohedron-629af649fdf8aabd.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-51cb33a01dc60256.rmeta --extern proconio=/opt/rustwide/target/debug/deps/libproconio-d02b762dfb30ee1b.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0cf62c36f27107a6.rmeta --extern rand_chacha=/opt/rustwide/target/debug/deps/librand_chacha-a8caa51618f23952.rmeta --extern rand_core=/opt/rustwide/target/debug/deps/librand_core-8ce157ff32cb38a5.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-2866d7a06cdf3166.rmeta --extern rand_hc=/opt/rustwide/target/debug/deps/librand_hc-af863bf3367d3171.rmeta --extern rand_pcg=/opt/rustwide/target/debug/deps/librand_pcg-13b376bffeb60e79.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-ba3d6e6d10dfaed0.rmeta --extern rustc_hash=/opt/rustwide/target/debug/deps/librustc_hash-8cfaaf785409b1d1.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-d4d39211ea311600.rmeta --extern superslice=/opt/rustwide/target/debug/deps/libsuperslice-c8ae24ed903a6dcb.rmeta --extern text_io=/opt/rustwide/target/debug/deps/libtext_io-9066b4aa4850eda7.rmeta --extern whiteread=/opt/rustwide/target/debug/deps/libwhiteread-c7893fbd796a87ff.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "93c0ca9dfeb00f87689d57f5ff01f7dfebaf049ac04c3a9d992dbed78e7b9347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c0ca9dfeb00f87689d57f5ff01f7dfebaf049ac04c3a9d992dbed78e7b9347", kill_on_drop: false }`
[INFO] [stdout] 93c0ca9dfeb00f87689d57f5ff01f7dfebaf049ac04c3a9d992dbed78e7b9347
