[INFO] fetching crate blackbox 0.2.0...
[INFO] documenting blackbox-0.2.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate blackbox 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate blackbox 0.2.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackbox 0.2.0
[INFO] finished tweaking crates.io crate blackbox 0.2.0
[INFO] tweaked toml for crates.io crate blackbox 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate blackbox 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb19c9ad91b95b0d68f69d8824a3eb0691ff98d270c0609fbfd096e5f9f61f3f
[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" "cb19c9ad91b95b0d68f69d8824a3eb0691ff98d270c0609fbfd096e5f9f61f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb19c9ad91b95b0d68f69d8824a3eb0691ff98d270c0609fbfd096e5f9f61f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb19c9ad91b95b0d68f69d8824a3eb0691ff98d270c0609fbfd096e5f9f61f3f", kill_on_drop: false }`
[INFO] [stdout] cb19c9ad91b95b0d68f69d8824a3eb0691ff98d270c0609fbfd096e5f9f61f3f
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0fe1f9e4829bac9f1c292c1c1eadcb19378b107ddde7e17c8cf6edce9083c33
[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" "b0fe1f9e4829bac9f1c292c1c1eadcb19378b107ddde7e17c8cf6edce9083c33", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking random v0.12.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking probability v0.15.12
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking slog-async v2.4.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]     Checking rusty-machine v0.5.4
[INFO] [stderr]  Documenting blackbox v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.12s
[INFO] running `Command { std: "docker" "inspect" "b0fe1f9e4829bac9f1c292c1c1eadcb19378b107ddde7e17c8cf6edce9083c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0fe1f9e4829bac9f1c292c1c1eadcb19378b107ddde7e17c8cf6edce9083c33", kill_on_drop: false }`
[INFO] [stdout] b0fe1f9e4829bac9f1c292c1c1eadcb19378b107ddde7e17c8cf6edce9083c33