[INFO] fetching crate nj-core 2.1.1...
[INFO] documenting nj-core-2.1.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate nj-core 2.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nj-core 2.1.1 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 nj-core 2.1.1
[INFO] finished tweaking crates.io crate nj-core 2.1.1
[INFO] tweaked toml for crates.io crate nj-core 2.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 0c72cd8af538a90c0eb2e57813dd4d1cece26cfb46bc78135a7a4eef95569266
[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" "0c72cd8af538a90c0eb2e57813dd4d1cece26cfb46bc78135a7a4eef95569266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c72cd8af538a90c0eb2e57813dd4d1cece26cfb46bc78135a7a4eef95569266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c72cd8af538a90c0eb2e57813dd4d1cece26cfb46bc78135a7a4eef95569266", kill_on_drop: false }`
[INFO] [stdout] 0c72cd8af538a90c0eb2e57813dd4d1cece26cfb46bc78135a7a4eef95569266
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 5c79d3f3bc5e932595dd42e291e771ae531682d53129fe3ce24da908a4ec8bfc
[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" "5c79d3f3bc5e932595dd42e291e771ae531682d53129fe3ce24da908a4ec8bfc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking send_wrapper v0.4.0
[INFO] [stderr]     Checking nj-sys v1.0.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking polling v0.1.7
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling inventory-impl v0.1.8
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]     Checking inventory v0.1.8
[INFO] [stderr]     Checking flv-util v0.2.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]     Checking wasm-bindgen v0.2.67
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking js-sys v0.3.44
[INFO] [stderr]     Checking web-sys v0.3.44
[INFO] [stderr]     Checking gloo-timers v0.2.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stderr]     Checking flv-future-aio v2.4.1
[INFO] [stderr]  Documenting nj-core v2.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.80s
[INFO] running `Command { std: "docker" "inspect" "5c79d3f3bc5e932595dd42e291e771ae531682d53129fe3ce24da908a4ec8bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c79d3f3bc5e932595dd42e291e771ae531682d53129fe3ce24da908a4ec8bfc", kill_on_drop: false }`
[INFO] [stdout] 5c79d3f3bc5e932595dd42e291e771ae531682d53129fe3ce24da908a4ec8bfc