[INFO] fetching crate watson 0.9.1...
[INFO] documenting watson-0.9.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate watson 0.9.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate watson 0.9.1 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 watson 0.9.1
[INFO] finished tweaking crates.io crate watson 0.9.1
[INFO] tweaked toml for crates.io crate watson 0.9.1 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] 5e1f4cbfb8a1d1144df1758427174f3b039b9a71b5521b7d741165547bac16ff
[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" "5e1f4cbfb8a1d1144df1758427174f3b039b9a71b5521b7d741165547bac16ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e1f4cbfb8a1d1144df1758427174f3b039b9a71b5521b7d741165547bac16ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e1f4cbfb8a1d1144df1758427174f3b039b9a71b5521b7d741165547bac16ff", kill_on_drop: false }`
[INFO] [stdout] 5e1f4cbfb8a1d1144df1758427174f3b039b9a71b5521b7d741165547bac16ff
[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] 1014cc70c283b3cfdbc731b6b52681f5eb27080749fb01c2019008c21812cdbf
[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" "1014cc70c283b3cfdbc731b6b52681f5eb27080749fb01c2019008c21812cdbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking webassembly v0.8.2
[INFO] [stderr]  Documenting watson v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.87s
[INFO] running `Command { std: "docker" "inspect" "1014cc70c283b3cfdbc731b6b52681f5eb27080749fb01c2019008c21812cdbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1014cc70c283b3cfdbc731b6b52681f5eb27080749fb01c2019008c21812cdbf", kill_on_drop: false }`
[INFO] [stdout] 1014cc70c283b3cfdbc731b6b52681f5eb27080749fb01c2019008c21812cdbf