[INFO] updating cached repository https://github.com/sxend/rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e97ef5bcefdee569d46d37a8cfe474a4f310b41e
[INFO] documenting sxend/rust_study against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsxend%2Frust_study" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sxend/rust_study on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sxend/rust_study
[INFO] finished tweaking git repo https://github.com/sxend/rust_study
[INFO] tweaked toml for git repo https://github.com/sxend/rust_study written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/sxend/rust_study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e5dcc9fb1dc5c39828e5848a126a044c6ea3523ad3ea0d0a9631b0f6491dd02
[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" "5e5dcc9fb1dc5c39828e5848a126a044c6ea3523ad3ea0d0a9631b0f6491dd02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e5dcc9fb1dc5c39828e5848a126a044c6ea3523ad3ea0d0a9631b0f6491dd02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e5dcc9fb1dc5c39828e5848a126a044c6ea3523ad3ea0d0a9631b0f6491dd02", kill_on_drop: false }`
[INFO] [stdout] 5e5dcc9fb1dc5c39828e5848a126a044c6ea3523ad3ea0d0a9631b0f6491dd02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95ad4eb7eb782411ec912dd167bd480f21423db63f8878d4937982355962a238
[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" "95ad4eb7eb782411ec912dd167bd480f21423db63f8878d4937982355962a238", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking rand_core v0.3.0
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[INFO] [stderr]    Compiling winapi-build v0.1.1
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[INFO] [stderr]     Checking modifier v0.1.0
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[INFO] [stderr]     Checking remove_dir_all v0.5.1
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[INFO] [stderr]    Compiling proc-macro2 v0.4.24
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[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling unicase v2.2.0
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[INFO] [stderr]     Checking tokio-current-thread v0.1.4
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[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
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[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking mime v0.3.12
[INFO] [stderr]    Compiling syn v0.15.22
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[INFO] [stderr]    Compiling backtrace-sys v0.1.24
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[INFO] [stderr]     Checking parking_lot v0.7.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking backtrace v0.3.11
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking crossbeam-channel v0.3.3
[INFO] [stderr]     Checking tokio-reactor v0.1.7
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[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking markdown v0.2.0
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking h2 v0.1.13
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[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking persistent v0.4.0
[INFO] [stderr]     Checking router v0.6.0
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking hyper v0.12.18
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking bodyparser v0.8.0
[INFO] [stderr]     Checking urlencoded v0.6.0
[INFO] [stderr]     Checking params v0.8.0
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling actix_derive v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking trust-dns-proto v0.5.0
[INFO] [stderr]     Checking trust-dns-resolver v0.10.0
[INFO] [stderr]     Checking actix v0.7.9
[INFO] [stderr]     Checking actix-net v0.2.5
[INFO] [stderr]     Checking docopt v1.0.2
[INFO] [stderr]  Documenting rust_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `rust_study`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name options_sample src/bin/options_sample.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-c40adf2f07762a4e.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-dd3ed1055cc37b31.rmeta --extern docopt=/opt/rustwide/target/debug/deps/libdocopt-c9c216179677f2b4.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-f4d781341d16e104.rmeta --extern error=/opt/rustwide/target/debug/deps/liberror-db71c27a4d41fdce.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-7a00c9c1a85c2f4a.rmeta --extern futures_cpupool=/opt/rustwide/target/debug/deps/libfutures_cpupool-c01c6161748bcc0b.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-f90d3e242e952a11.rmeta --extern iron=/opt/rustwide/target/debug/deps/libiron-6e8b4dda23beac91.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-2d767b8c34fe13be.rmeta --extern markdown=/opt/rustwide/target/debug/deps/libmarkdown-6851ba88f47befc6.rmeta --extern params=/opt/rustwide/target/debug/deps/libparams-779161d6cbd16572.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-f3bea19ce158be22.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e5899fb85415ab9c.rmeta --extern router=/opt/rustwide/target/debug/deps/librouter-5c45cfb9abdd509c.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-f2625b24c9a1889c.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e10c955a9e811b26.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-240c260b2b2d1e98.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-ba379af912007a7b.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-00104602941c2eab.rmeta --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-ca0a21851f1199e7.rmeta --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-75530969800cbb28.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-eff90646791eda63.rmeta --cap-lints=forbid` (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" "95ad4eb7eb782411ec912dd167bd480f21423db63f8878d4937982355962a238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ad4eb7eb782411ec912dd167bd480f21423db63f8878d4937982355962a238", kill_on_drop: false }`
[INFO] [stdout] 95ad4eb7eb782411ec912dd167bd480f21423db63f8878d4937982355962a238