[INFO] fetching crate yt 0.0.0...
[INFO] documenting yt-0.0.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate yt 0.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate yt 0.0.0 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 yt 0.0.0
[INFO] finished tweaking crates.io crate yt 0.0.0
[INFO] tweaked toml for crates.io crate yt 0.0.0 written to /workspace/builds/worker-9/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] de888087b1a258c7aa655523479fba5e75c79a3feb32a2f4426c59e295e1cc0f
[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" "de888087b1a258c7aa655523479fba5e75c79a3feb32a2f4426c59e295e1cc0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de888087b1a258c7aa655523479fba5e75c79a3feb32a2f4426c59e295e1cc0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de888087b1a258c7aa655523479fba5e75c79a3feb32a2f4426c59e295e1cc0f", kill_on_drop: false }`
[INFO] [stdout] de888087b1a258c7aa655523479fba5e75c79a3feb32a2f4426c59e295e1cc0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 725c1d05f5d0d6408aaccb53b11885d520a35c857b12ecf714bb15c89c941728
[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" "725c1d05f5d0d6408aaccb53b11885d520a35c857b12ecf714bb15c89c941728", kill_on_drop: false }`
[INFO] [stderr]  Documenting yt v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "725c1d05f5d0d6408aaccb53b11885d520a35c857b12ecf714bb15c89c941728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "725c1d05f5d0d6408aaccb53b11885d520a35c857b12ecf714bb15c89c941728", kill_on_drop: false }`
[INFO] [stdout] 725c1d05f5d0d6408aaccb53b11885d520a35c857b12ecf714bb15c89c941728