[INFO] fetching crate dua-cli 2.10.2...
[INFO] documenting dua-cli-2.10.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate dua-cli 2.10.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dua-cli 2.10.2 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 dua-cli 2.10.2
[INFO] finished tweaking crates.io crate dua-cli 2.10.2
[INFO] tweaked toml for crates.io crate dua-cli 2.10.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate dua-cli 2.10.2 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 filesize v0.2.0
[INFO] [stderr]   Downloaded jwalk v0.5.1
[INFO] [stderr]   Downloaded byte-unit v4.0.8
[INFO] [stderr]   Downloaded utf8-width v0.1.3
[INFO] [stderr]   Downloaded crosstermion v0.3.0
[INFO] [stderr]   Downloaded tui-react v0.10.1
[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] b616e659995a4d049ccd9712aafedf2bc23d06dc537a6de18b3221674131b496
[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" "b616e659995a4d049ccd9712aafedf2bc23d06dc537a6de18b3221674131b496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b616e659995a4d049ccd9712aafedf2bc23d06dc537a6de18b3221674131b496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b616e659995a4d049ccd9712aafedf2bc23d06dc537a6de18b3221674131b496", kill_on_drop: false }`
[INFO] [stdout] b616e659995a4d049ccd9712aafedf2bc23d06dc537a6de18b3221674131b496
[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] 103c43553452b8456c629a2e4e8e3c36ac683dffc5fa41e07f26b30f107495a6
[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" "103c43553452b8456c629a2e4e8e3c36ac683dffc5fa41e07f26b30f107495a6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking utf8-width v0.1.3
[INFO] [stderr]     Checking filesize v0.2.0
[INFO] [stderr]     Checking wild v2.0.4
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking byte-unit v4.0.8
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking tui v0.10.0
[INFO] [stderr]     Checking tui-react v0.10.1
[INFO] [stderr]     Checking crosstermion v0.3.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking jwalk v0.5.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]  Documenting dua-cli v2.10.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.42s
[INFO] running `Command { std: "docker" "inspect" "103c43553452b8456c629a2e4e8e3c36ac683dffc5fa41e07f26b30f107495a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "103c43553452b8456c629a2e4e8e3c36ac683dffc5fa41e07f26b30f107495a6", kill_on_drop: false }`
[INFO] [stdout] 103c43553452b8456c629a2e4e8e3c36ac683dffc5fa41e07f26b30f107495a6