[INFO] fetching crate assets 0.3.0...
[INFO] documenting assets-0.3.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate assets 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate assets 0.3.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assets 0.3.0
[INFO] finished tweaking crates.io crate assets 0.3.0
[INFO] tweaked toml for crates.io crate assets 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac322835d277d9da059d8bad6a9bc69c5241dbee6688323565bf6478d2bd9942
[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" "ac322835d277d9da059d8bad6a9bc69c5241dbee6688323565bf6478d2bd9942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac322835d277d9da059d8bad6a9bc69c5241dbee6688323565bf6478d2bd9942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac322835d277d9da059d8bad6a9bc69c5241dbee6688323565bf6478d2bd9942", kill_on_drop: false }`
[INFO] [stdout] ac322835d277d9da059d8bad6a9bc69c5241dbee6688323565bf6478d2bd9942
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 109a9b571959ca71f50aafafaf7fd59efee8f0cee7a89c29044991ecda9e1476
[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" "109a9b571959ca71f50aafafaf7fd59efee8f0cee7a89c29044991ecda9e1476", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking imagefmt v4.0.0
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking hibitset v0.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]  Documenting assets v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "109a9b571959ca71f50aafafaf7fd59efee8f0cee7a89c29044991ecda9e1476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109a9b571959ca71f50aafafaf7fd59efee8f0cee7a89c29044991ecda9e1476", kill_on_drop: false }`
[INFO] [stdout] 109a9b571959ca71f50aafafaf7fd59efee8f0cee7a89c29044991ecda9e1476
