[INFO] fetching crate rand_pcg 0.2.1...
[INFO] documenting rand_pcg-0.2.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate rand_pcg 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rand_pcg 0.2.1 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 rand_pcg 0.2.1
[INFO] finished tweaking crates.io crate rand_pcg 0.2.1
[INFO] tweaked toml for crates.io crate rand_pcg 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 1cbd734a3fc285ee3bd6973807d4458d77b9af0ed69991a558ca182fdc0d0886
[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" "1cbd734a3fc285ee3bd6973807d4458d77b9af0ed69991a558ca182fdc0d0886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cbd734a3fc285ee3bd6973807d4458d77b9af0ed69991a558ca182fdc0d0886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cbd734a3fc285ee3bd6973807d4458d77b9af0ed69991a558ca182fdc0d0886", kill_on_drop: false }`
[INFO] [stdout] 1cbd734a3fc285ee3bd6973807d4458d77b9af0ed69991a558ca182fdc0d0886
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 32a64dd0a87694c8363367f17c4b3067a97bc56ff0e00e0c3fa73a940df273a8
[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" "32a64dd0a87694c8363367f17c4b3067a97bc56ff0e00e0c3fa73a940df273a8", kill_on_drop: false }`
[INFO] [stderr]  Documenting rand_pcg v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "32a64dd0a87694c8363367f17c4b3067a97bc56ff0e00e0c3fa73a940df273a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a64dd0a87694c8363367f17c4b3067a97bc56ff0e00e0c3fa73a940df273a8", kill_on_drop: false }`
[INFO] [stdout] 32a64dd0a87694c8363367f17c4b3067a97bc56ff0e00e0c3fa73a940df273a8