[INFO] cloning repository https://github.com/meetup/cliff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meetup/cliff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeetup%2Fcliff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeetup%2Fcliff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93f7e1039366e67f01209400306f586cfe6e9a1e
[INFO] documenting meetup/cliff 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%2Fmeetup%2Fcliff" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/meetup/cliff 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/meetup/cliff
[INFO] finished tweaking git repo https://github.com/meetup/cliff
[INFO] tweaked toml for git repo https://github.com/meetup/cliff written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/meetup/cliff 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 sourcefile v0.1.4
[INFO] [stderr]   Downloaded tokio-rustls v0.10.2
[INFO] [stderr]   Downloaded proc-macro-error v0.2.6
[INFO] [stderr]   Downloaded colored v1.9.0
[INFO] [stderr]   Downloaded weedle v0.10.0
[INFO] [stderr]   Downloaded serde v1.0.103
[INFO] [stderr]   Downloaded unicode-normalization v0.1.11
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.55
[INFO] [stderr]   Downloaded bumpalo v2.6.0
[INFO] [stderr]   Downloaded serde_derive v1.0.103
[INFO] [stderr]   Downloaded structopt v0.3.5
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.55
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.55
[INFO] [stderr]   Downloaded anyhow v1.0.25
[INFO] [stderr]   Downloaded js-sys v0.3.32
[INFO] [stderr]   Downloaded smallvec v1.0.0
[INFO] [stderr]   Downloaded structopt-derive v0.3.5
[INFO] [stderr]   Downloaded webpki v0.21.0
[INFO] [stderr]   Downloaded rusoto_cloudformation v0.42.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.55
[INFO] [stderr]   Downloaded untrusted v0.7.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.55
[INFO] [stderr]   Downloaded web-sys v0.3.32
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.55
[INFO] [stderr]   Downloaded ring v0.16.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] cf14e4606a3525c61789c975467c842259d1adf5bb4e567fe12f0bbaa58aed77
[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" "cf14e4606a3525c61789c975467c842259d1adf5bb4e567fe12f0bbaa58aed77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf14e4606a3525c61789c975467c842259d1adf5bb4e567fe12f0bbaa58aed77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf14e4606a3525c61789c975467c842259d1adf5bb4e567fe12f0bbaa58aed77", kill_on_drop: false }`
[INFO] [stdout] cf14e4606a3525c61789c975467c842259d1adf5bb4e567fe12f0bbaa58aed77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 996b0673c949f2b5ec914f9dd966bee5157588767fd058133792e4f35b6ef1e2
[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" "996b0673c949f2b5ec914f9dd966bee5157588767fd058133792e4f35b6ef1e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]     Checking futures-timer v0.1.1
[INFO] [stderr]    Compiling rusoto_core v0.42.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking colored v1.9.0
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking futures-backoff v0.1.0
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-process v0.2.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking webpki v0.21.0
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking ct-logs v0.6.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.17.0
[INFO] [stderr]     Checking tokio-rustls v0.10.2
[INFO] [stderr]     Checking hyper-rustls v0.17.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking serde v1.0.103
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde-xml-rs v0.3.1
[INFO] [stderr]     Checking rusoto_credential v0.42.0
[INFO] [stderr]     Checking rusoto_signature v0.42.0
[INFO] [stderr]     Checking rusoto_cloudformation v0.42.0
[INFO] [stderr]  Documenting cliff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "996b0673c949f2b5ec914f9dd966bee5157588767fd058133792e4f35b6ef1e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "996b0673c949f2b5ec914f9dd966bee5157588767fd058133792e4f35b6ef1e2", kill_on_drop: false }`
[INFO] [stdout] 996b0673c949f2b5ec914f9dd966bee5157588767fd058133792e4f35b6ef1e2