[INFO] fetching crate conserve 0.6.5...
[INFO] documenting conserve-0.6.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate conserve 0.6.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate conserve 0.6.5 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 crates.io crate conserve 0.6.5
[INFO] finished tweaking crates.io crate conserve 0.6.5
[INFO] tweaked toml for crates.io crate conserve 0.6.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate conserve 0.6.5 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 globwalk v0.7.3
[INFO] [stderr]   Downloaded escargot v0.5.0
[INFO] [stderr]   Downloaded assert_fs v1.0.0
[INFO] [stderr]   Downloaded thousands v0.2.0
[INFO] [stderr]   Downloaded utime v0.3.1
[INFO] [stderr]   Downloaded crossterm v0.17.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 245f002b2ac4013bcf863f560133296eb8b65108f6454ab4902d4172b373dd41
[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" "245f002b2ac4013bcf863f560133296eb8b65108f6454ab4902d4172b373dd41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "245f002b2ac4013bcf863f560133296eb8b65108f6454ab4902d4172b373dd41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245f002b2ac4013bcf863f560133296eb8b65108f6454ab4902d4172b373dd41", kill_on_drop: false }`
[INFO] [stdout] 245f002b2ac4013bcf863f560133296eb8b65108f6454ab4902d4172b373dd41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 6e77494ca9b0a38b7984f5445723df50f3fc71a2902b06ae54645cbbbc6c7836
[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" "6e77494ca9b0a38b7984f5445723df50f3fc71a2902b06ae54645cbbbc6c7836", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking thousands v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking utime v0.3.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling derive_more v0.99.9
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]  Documenting conserve v0.6.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.78s
[INFO] running `Command { std: "docker" "inspect" "6e77494ca9b0a38b7984f5445723df50f3fc71a2902b06ae54645cbbbc6c7836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e77494ca9b0a38b7984f5445723df50f3fc71a2902b06ae54645cbbbc6c7836", kill_on_drop: false }`
[INFO] [stdout] 6e77494ca9b0a38b7984f5445723df50f3fc71a2902b06ae54645cbbbc6c7836