[INFO] cloning 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" "clone" "--bare" "https://github.com/sxend/rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsxend%2Frust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsxend%2Frust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e97ef5bcefdee569d46d37a8cfe474a4f310b41e
[INFO] documenting sxend/rust_study against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsxend%2Frust_study" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sxend/rust_study on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7/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" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_core v0.2.2
[INFO] [stderr]   Downloaded tokio-core v0.1.17
[INFO] [stderr]   Downloaded tokio-reactor v0.1.7
[INFO] [stderr]   Downloaded rand v0.4.3
[INFO] [stderr]   Downloaded tokio-timer v0.2.8
[INFO] [stderr]   Downloaded num_cpus v1.8.0
[INFO] [stderr]   Downloaded tokio v0.1.13
[INFO] [stderr]   Downloaded signal-hook v0.1.6
[INFO] [stderr]   Downloaded arc-swap v0.3.6
[INFO] [stderr]   Downloaded linked-hash-map v0.4.2
[INFO] [stderr]   Downloaded lru-cache v0.1.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.3.3
[INFO] [stderr]   Downloaded rust-crypto v0.2.36
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.9
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.4
[INFO] [stderr]   Downloaded quote v0.6.10
[INFO] [stderr]   Downloaded proc-macro2 v0.4.24
[INFO] [stderr]   Downloaded crc v1.8.1
[INFO] [stderr]   Downloaded phf_codegen v0.7.23
[INFO] [stderr]   Downloaded phf_generator v0.7.23
[INFO] [stderr]   Downloaded persistent v0.4.0
[INFO] [stderr]   Downloaded regex-syntax v0.3.9
[INFO] [stderr]   Downloaded markdown v0.2.0
[INFO] [stderr]   Downloaded h2 v0.1.13
[INFO] [stderr]   Downloaded parking_lot v0.7.0
[INFO] [stderr]   Downloaded serde_urlencoded v0.5.4
[INFO] [stderr]   Downloaded base64 v0.10.0
[INFO] [stderr]   Downloaded flate2 v1.0.6
[INFO] [stderr]   Downloaded miniz_oxide v0.2.0
[INFO] [stderr]   Downloaded miniz-sys v0.1.11
[INFO] [stderr]   Downloaded cookie v0.11.0
[INFO] [stderr]   Downloaded synstructure v0.10.1
[INFO] [stderr]   Downloaded failure v0.1.3
[INFO] [stderr]   Downloaded regex v0.1.80
[INFO] [stderr]   Downloaded mime_guess v2.0.0-alpha.6
[INFO] [stderr]   Downloaded backtrace v0.3.11
[INFO] [stderr]   Downloaded uuid v0.7.1
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded build_const v0.2.1
[INFO] [stderr]   Downloaded hyper v0.12.18
[INFO] [stderr]   Downloaded ring v0.13.5
[INFO] [stderr]   Downloaded smallvec v0.6.7
[INFO] [stderr]   Downloaded router v0.6.0
[INFO] [stderr]   Downloaded syn v0.15.22
[INFO] [stderr]   Downloaded failure_derive v0.1.3
[INFO] [stderr]   Downloaded libc v0.2.44
[INFO] [stderr]   Downloaded multipart v0.13.6
[INFO] [stderr]   Downloaded buf_redux v0.6.3
[INFO] [stderr]   Downloaded urlencoded v0.6.0
[INFO] [stderr]   Downloaded phf v0.7.23
[INFO] [stderr]   Downloaded crc32fast v1.1.2
[INFO] [stderr]   Downloaded actix-web v0.7.16
[INFO] [stderr]   Downloaded cc v1.0.26
[INFO] [stderr]   Downloaded unicase v2.2.0
[INFO] [stderr]   Downloaded miniz_oxide_c_api v0.2.0
[INFO] [stderr]   Downloaded docopt v1.0.2
[INFO] [stderr]   Downloaded http v0.1.14
[INFO] [stderr]   Downloaded string v0.1.2
[INFO] [stderr]   Downloaded pipeline v0.5.0
[INFO] [stderr]   Downloaded bodyparser v0.8.0
[INFO] [stderr]   Downloaded params v0.8.0
[INFO] [stderr]   Downloaded memchr v1.0.2
[INFO] [stderr]   Downloaded safemem v0.2.0
[INFO] [stderr]   Downloaded memchr v2.1.1
[INFO] [stderr]   Downloaded aho-corasick v0.6.9
[INFO] [stderr]   Downloaded regex-syntax v0.6.4
[INFO] [stderr]   Downloaded regex v1.1.0
[INFO] [stderr]   Downloaded hyper v0.10.15
[INFO] [stderr]   Downloaded mime_guess v1.8.6
[INFO] [stderr]   Downloaded siphasher v0.2.3
[INFO] [stderr]   Downloaded phf_shared v0.7.23
[INFO] [stderr]   Downloaded iron v0.6.0
[INFO] [stderr]   Downloaded time v0.1.40
[INFO] [stderr]   Downloaded scoped-tls v0.1.2
[INFO] [stderr]   Downloaded tokio-fs v0.1.4
[INFO] [stderr]   Downloaded tokio-tcp v0.1.2
[INFO] [stderr]   Downloaded serde_derive v1.0.82
[INFO] [stderr]   Downloaded crossbeam-deque v0.6.2
[INFO] [stderr]   Downloaded arrayvec v0.4.8
[INFO] [stderr]   Downloaded crossbeam-epoch v0.6.1
[INFO] [stderr]   Downloaded tokio-uds v0.2.4
[INFO] [stderr]   Downloaded trust-dns-resolver v0.10.0
[INFO] [stderr]   Downloaded actix-net v0.2.5
[INFO] [stderr]   Downloaded askama_escape v0.1.0
[INFO] [stderr]   Downloaded tower-service v0.1.0
[INFO] [stderr]   Downloaded socket2 v0.3.8
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.1
[INFO] [stderr]   Downloaded tokio-io v0.1.10
[INFO] [stderr]   Downloaded rand v0.5.5
[INFO] [stderr]   Downloaded tokio-executor v0.1.5
[INFO] [stderr]   Downloaded serde v1.0.82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a30b61efe579e90f7382c3bb96d9375f22b8dd3f187d95ae6a0ba473b9d83239
[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" "a30b61efe579e90f7382c3bb96d9375f22b8dd3f187d95ae6a0ba473b9d83239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a30b61efe579e90f7382c3bb96d9375f22b8dd3f187d95ae6a0ba473b9d83239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a30b61efe579e90f7382c3bb96d9375f22b8dd3f187d95ae6a0ba473b9d83239", kill_on_drop: false }`
[INFO] [stdout] a30b61efe579e90f7382c3bb96d9375f22b8dd3f187d95ae6a0ba473b9d83239
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8afc5ab253471f5a4fcf1049ce6912a1d3f5d62396e0ae13353e72568b8f559d
[INFO] running `Command { std: "docker" "start" "-a" "8afc5ab253471f5a4fcf1049ce6912a1d3f5d62396e0ae13353e72568b8f559d", kill_on_drop: false }`
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking arc-swap v0.3.6
[INFO] [stderr]     Checking askama_escape v0.1.0
[INFO] [stderr]     Checking route-recognizer v0.1.12
[INFO] [stderr]     Checking crossbeam-utils v0.6.1
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]     Checking tower-service v0.1.0
[INFO] [stderr]    Compiling actix-web v0.7.16
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking tokio-timer v0.2.8
[INFO] [stderr]     Checking signal-hook v0.1.6
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking resolv-conf v0.6.1
[INFO] [stderr]     Checking buf_redux v0.6.3
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking rand v0.6.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.2
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking http v0.1.14
[INFO] [stderr]     Checking hyper v0.10.15
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking backtrace v0.3.11
[INFO] [stderr]     Checking flate2 v1.0.6
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking markdown v0.2.0
[INFO] [stderr]     Checking parking_lot v0.7.0
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.3
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking h2 v0.1.13
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking iron v0.6.0
[INFO] [stderr]     Checking multipart v0.13.6
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking persistent v0.4.0
[INFO] [stderr]     Checking router v0.6.0
[INFO] [stderr]     Checking bodyparser v0.8.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking hyper v0.12.18
[INFO] [stderr]     Checking urlencoded v0.6.0
[INFO] [stderr]     Checking params v0.8.0
[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-9a063f921e9f945e.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-0750dc03d4778014.rmeta --extern docopt=/opt/rustwide/target/debug/deps/libdocopt-7ac144edfd41ef36.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-22f93e9abc35d935.rmeta --extern error=/opt/rustwide/target/debug/deps/liberror-e7684ab911fe2727.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-d817449cf535ffdb.rmeta --extern futures_cpupool=/opt/rustwide/target/debug/deps/libfutures_cpupool-a75a200660fb9973.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-350e8f310898ffe0.rmeta --extern iron=/opt/rustwide/target/debug/deps/libiron-c60ca65ed839a3cd.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-b52d93b6a5875b2a.rmeta --extern markdown=/opt/rustwide/target/debug/deps/libmarkdown-0a1b821c0f31ed07.rmeta --extern params=/opt/rustwide/target/debug/deps/libparams-72149f420ceea400.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-1d7c78fe75b31bfa.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-dc382ee9363c27b7.rmeta --extern router=/opt/rustwide/target/debug/deps/librouter-c5c7a20e2d5fc0c9.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-7b15827aee41b2ce.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-7c6d747ec5fff89b.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-914139ae5f5cbb40.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-fdec44b5d3fb478a.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-9c80f8fe26b34c48.rmeta --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-1a81b7533a576161.rmeta --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-6fdf05d80169b2de.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-3586d3549c8e2c87.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" "8afc5ab253471f5a4fcf1049ce6912a1d3f5d62396e0ae13353e72568b8f559d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8afc5ab253471f5a4fcf1049ce6912a1d3f5d62396e0ae13353e72568b8f559d", kill_on_drop: false }`
[INFO] [stdout] 8afc5ab253471f5a4fcf1049ce6912a1d3f5d62396e0ae13353e72568b8f559d
