[INFO] cloning repository https://github.com/ToferC/learner_models
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ToferC/learner_models" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToferC%2Flearner_models", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToferC%2Flearner_models'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d9b5dec0aa3f08b9286a852dea0ddf97faeb9d1
[INFO] documenting ToferC/learner_models 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%2FToferC%2Flearner_models" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ToferC/learner_models 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/ToferC/learner_models
[INFO] finished tweaking git repo https://github.com/ToferC/learner_models
[INFO] tweaked toml for git repo https://github.com/ToferC/learner_models written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ToferC/learner_models 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.0
[INFO] [stderr]   Downloaded dwrote v0.11.0
[INFO] [stderr]   Downloaded font-kit v0.7.1
[INFO] [stderr]   Downloaded dummy v0.3.3
[INFO] [stderr]   Downloaded fake v2.2.3
[INFO] [stderr]   Downloaded js-sys v0.3.42
[INFO] [stderr]   Downloaded tracing v0.1.16
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.15
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.65
[INFO] [stderr]   Downloaded pathfinder_geometry v0.5.1
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 0027beea14afdccc58ac25a00b4d2d51d2de36ea69df1962bb5b46c9626eb4ce
[INFO] running `Command { std: "docker" "start" "-a" "0027beea14afdccc58ac25a00b4d2d51d2de36ea69df1962bb5b46c9626eb4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0027beea14afdccc58ac25a00b4d2d51d2de36ea69df1962bb5b46c9626eb4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0027beea14afdccc58ac25a00b4d2d51d2de36ea69df1962bb5b46c9626eb4ce", kill_on_drop: false }`
[INFO] [stdout] 0027beea14afdccc58ac25a00b4d2d51d2de36ea69df1962bb5b46c9626eb4ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] a4b1c0e4566072b8f9c806e0ba02cd4c1bf5da709afb1cdca2f06e6e6f76f1d2
[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" "a4b1c0e4566072b8f9c806e0ba02cd4c1bf5da709afb1cdca2f06e6e6f76f1d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking openssl-sys v0.9.58
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking tracing v0.1.16
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking openssl v0.10.30
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]     Checking num-rational v0.3.0
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking font-kit v0.7.1
[INFO] [stderr]     Checking image v0.23.8
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking palette v0.5.0
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling dummy v0.3.3
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking fake v2.2.3
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.6
[INFO] [stderr]  Documenting learners v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "a4b1c0e4566072b8f9c806e0ba02cd4c1bf5da709afb1cdca2f06e6e6f76f1d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b1c0e4566072b8f9c806e0ba02cd4c1bf5da709afb1cdca2f06e6e6f76f1d2", kill_on_drop: false }`
[INFO] [stdout] a4b1c0e4566072b8f9c806e0ba02cd4c1bf5da709afb1cdca2f06e6e6f76f1d2