[INFO] cloning repository https://github.com/xudesheng/async_benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xudesheng/async_benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxudesheng%2Fasync_benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxudesheng%2Fasync_benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a6c373ae3186d7b38e93ee5b5a08a345b863ccc
[INFO] documenting xudesheng/async_benchmark against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxudesheng%2Fasync_benchmark" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xudesheng/async_benchmark on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xudesheng/async_benchmark
[INFO] finished tweaking git repo https://github.com/xudesheng/async_benchmark
[INFO] tweaked toml for git repo https://github.com/xudesheng/async_benchmark written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/xudesheng/async_benchmark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69a857fd641efed5cc2d5abca7575fe470fb91bab61d9dc562808e7c5efd70b8
[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" "69a857fd641efed5cc2d5abca7575fe470fb91bab61d9dc562808e7c5efd70b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69a857fd641efed5cc2d5abca7575fe470fb91bab61d9dc562808e7c5efd70b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69a857fd641efed5cc2d5abca7575fe470fb91bab61d9dc562808e7c5efd70b8", kill_on_drop: false }`
[INFO] [stdout] 69a857fd641efed5cc2d5abca7575fe470fb91bab61d9dc562808e7c5efd70b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5442074f658fbda8fe0a77ae5a86478eff5f01ea5c15c267b22fff898919d7d
[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" "d5442074f658fbda8fe0a77ae5a86478eff5f01ea5c15c267b22fff898919d7d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking pin-project-lite v0.1.1
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking once_cell v1.2.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking async-task v1.1.0
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking async-std v1.4.0
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking tokio v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]  Documenting async_benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `async_benchmark`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name test06 src/test06.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-67abf23321706b97.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-94f76de86987d6bc.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-6e1bd8608a1e8756.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-1ff58b1abc0bd0ec.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-e3506e1e07e92b24.rmeta --extern httparse=/opt/rustwide/target/debug/deps/libhttparse-57ce91faecb09142.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-e4cf720112d3e2ea.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-0d65d6c73aa6463b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ad08fc17c2d1843f.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-4bfc55ec25f05e0c.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-2805fd7ce45f3ead.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-7c7de735b57aee13.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-9bd4edd4a32465d6.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-0555ebbab648f0ff.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-efde72197e8ad0e0.rmeta --cap-lints=warn` (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" "d5442074f658fbda8fe0a77ae5a86478eff5f01ea5c15c267b22fff898919d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5442074f658fbda8fe0a77ae5a86478eff5f01ea5c15c267b22fff898919d7d", kill_on_drop: false }`
[INFO] [stdout] d5442074f658fbda8fe0a77ae5a86478eff5f01ea5c15c267b22fff898919d7d