[INFO] cloning repository https://github.com/walfie/subkatsu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/walfie/subkatsu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalfie%2Fsubkatsu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalfie%2Fsubkatsu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9406028b6fe98efc665bf705bae15e3d444a3a69
[INFO] documenting walfie/subkatsu 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%2Fwalfie%2Fsubkatsu" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/walfie/subkatsu 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/walfie/subkatsu
[INFO] finished tweaking git repo https://github.com/walfie/subkatsu
[INFO] tweaked toml for git repo https://github.com/walfie/subkatsu written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/walfie/subkatsu 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]     Updating git repository `https://github.com/walfie/subparse.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded markov v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 26c1cee9701df24b56d6de3269b354d80b7d57bce02b16fac7dd17811cda7f7e
[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" "26c1cee9701df24b56d6de3269b354d80b7d57bce02b16fac7dd17811cda7f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26c1cee9701df24b56d6de3269b354d80b7d57bce02b16fac7dd17811cda7f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26c1cee9701df24b56d6de3269b354d80b7d57bce02b16fac7dd17811cda7f7e", kill_on_drop: false }`
[INFO] [stdout] 26c1cee9701df24b56d6de3269b354d80b7d57bce02b16fac7dd17811cda7f7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] fb41c319ccca831716de56ab711ddf6b896602efa7710e4a7a717b3768597a6f
[INFO] running `Command { std: "docker" "start" "-a" "fb41c319ccca831716de56ab711ddf6b896602efa7710e4a7a717b3768597a6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling serde v1.0.85
[INFO] [stderr]    Compiling encoding_rs v0.8.15
[INFO] [stderr]     Checking nom v2.1.0
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking yaml-rust v0.4.2
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]     Checking tinysegmenter v0.1.1
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking combine v2.5.2
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking tempfile v3.0.6
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking vobsub v0.2.3
[INFO] [stderr]     Checking subparse v0.4.0 (https://github.com/walfie/subparse.git?rev=12fa1f4d9e6e72ad3205f5e1019f1c2527d65f6b#12fa1f4d)
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.85
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking markov v1.0.2
[INFO] [stderr]  Documenting subkatsu v0.1.4-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/train.rs:72:18
[INFO] [stdout]    |
[INFO] [stdout] 72 |     source: &mut (impl std::io::Read),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "fb41c319ccca831716de56ab711ddf6b896602efa7710e4a7a717b3768597a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb41c319ccca831716de56ab711ddf6b896602efa7710e4a7a717b3768597a6f", kill_on_drop: false }`
[INFO] [stdout] fb41c319ccca831716de56ab711ddf6b896602efa7710e4a7a717b3768597a6f