[INFO] cloning repository https://github.com/acmumn/dip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/acmumn/dip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmumn%2Fdip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmumn%2Fdip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c48c9ef1bb714b242c821a969280895e0e5e4c2
[INFO] documenting acmumn/dip against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facmumn%2Fdip" "/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/acmumn/dip on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/acmumn/dip
[INFO] finished tweaking git repo https://github.com/acmumn/dip
[INFO] tweaked toml for git repo https://github.com/acmumn/dip written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/acmumn/dip already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytes v0.4.9
[INFO] [stderr]   Downloaded tokio-timer v0.2.5
[INFO] [stderr]   Downloaded aho-corasick v0.6.6
[INFO] [stderr]   Downloaded ryu v0.2.3
[INFO] [stderr]   Downloaded inotify v0.3.0
[INFO] [stderr]   Downloaded mktemp v0.3.1
[INFO] [stderr]   Downloaded http v0.1.10
[INFO] [stderr]   Downloaded hyper v0.12.8
[INFO] [stderr]   Downloaded tokio-signal v0.2.2
[INFO] [stderr]   Downloaded crypto-mac v0.6.2
[INFO] [stderr]   Downloaded hmac v0.6.3
[INFO] [stderr]   Downloaded regex v1.0.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.11
[INFO] [stderr]   Downloaded structopt v0.2.10
[INFO] [stderr]   Downloaded miow v0.3.1
[INFO] [stderr]   Downloaded quote v0.6.6
[INFO] [stderr]   Downloaded serde v1.0.71
[INFO] [stderr]   Downloaded filetime v0.1.15
[INFO] [stderr]   Downloaded walkdir v2.2.0
[INFO] [stderr]   Downloaded notify v4.0.4
[INFO] [stderr]   Downloaded serde_derive v1.0.71
[INFO] [stderr]   Downloaded serde_json v1.0.26
[INFO] [stderr]   Downloaded syn v0.14.8
[INFO] [stderr]   Downloaded byteorder v1.2.4
[INFO] [stderr]   Downloaded tokio-executor v0.1.3
[INFO] [stderr]   Downloaded tokio-reactor v0.1.3
[INFO] [stderr]   Downloaded structopt-derive v0.2.10
[INFO] [stderr]   Downloaded secstr v0.3.0
[INFO] [stderr]   Downloaded tokio-process v0.2.2
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", 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] a116dd1271a2411ccc661648a5aaa218f4b315962355f5a25969ac60759f0d9f
[INFO] running `Command { std: "docker" "start" "-a" "a116dd1271a2411ccc661648a5aaa218f4b315962355f5a25969ac60759f0d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a116dd1271a2411ccc661648a5aaa218f4b315962355f5a25969ac60759f0d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a116dd1271a2411ccc661648a5aaa218f4b315962355f5a25969ac60759f0d9f", kill_on_drop: false }`
[INFO] [stdout] a116dd1271a2411ccc661648a5aaa218f4b315962355f5a25969ac60759f0d9f
[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" "+beta-2020-08-29" "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] 53e34a22bd8f4dc592d46e5177261cc3057ea637d7ba14062436995d4f850b03
[INFO] running `Command { std: "docker" "start" "-a" "53e34a22bd8f4dc592d46e5177261cc3057ea637d7ba14062436995d4f850b03", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.11
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling ryu v0.2.3
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking inotify v0.3.0
[INFO] [stderr]     Checking secstr v0.3.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking tokio-executor v0.1.3
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking walkdir v2.2.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking hmac v0.6.3
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking tokio-timer v0.2.5
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking regex v1.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking http v0.1.10
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking tokio-threadpool v0.1.5
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]     Checking mio-uds v0.6.6
[INFO] [stderr]     Checking mktemp v0.3.1
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking tokio-reactor v0.1.3
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-signal v0.2.2
[INFO] [stderr]     Checking tokio-process v0.2.2
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking notify v4.0.4
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking hyper v0.12.8
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]  Documenting dip v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.86s
[INFO] running `Command { std: "docker" "inspect" "53e34a22bd8f4dc592d46e5177261cc3057ea637d7ba14062436995d4f850b03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53e34a22bd8f4dc592d46e5177261cc3057ea637d7ba14062436995d4f850b03", kill_on_drop: false }`
[INFO] [stdout] 53e34a22bd8f4dc592d46e5177261cc3057ea637d7ba14062436995d4f850b03