[INFO] fetching crate escape 0.1.31...
[INFO] documenting escape-0.1.31 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate escape 0.1.31 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate escape 0.1.31 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate escape 0.1.31
[INFO] finished tweaking crates.io crate escape 0.1.31
[INFO] tweaked toml for crates.io crate escape 0.1.31 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34cc3e36ddf2db70a2ce1a9cda04236c7df1e22aa6c4de7a0ac70c92f6c65eeb
[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" "34cc3e36ddf2db70a2ce1a9cda04236c7df1e22aa6c4de7a0ac70c92f6c65eeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34cc3e36ddf2db70a2ce1a9cda04236c7df1e22aa6c4de7a0ac70c92f6c65eeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34cc3e36ddf2db70a2ce1a9cda04236c7df1e22aa6c4de7a0ac70c92f6c65eeb", kill_on_drop: false }`
[INFO] [stdout] 34cc3e36ddf2db70a2ce1a9cda04236c7df1e22aa6c4de7a0ac70c92f6c65eeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 448bda0d6e49e00c1416f60e67f6d8fb7dc0012d1a87c081ebf70a43941df24d
[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" "448bda0d6e49e00c1416f60e67f6d8fb7dc0012d1a87c081ebf70a43941df24d", kill_on_drop: false }`
[INFO] [stderr]  Documenting escape v0.1.31 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "448bda0d6e49e00c1416f60e67f6d8fb7dc0012d1a87c081ebf70a43941df24d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "448bda0d6e49e00c1416f60e67f6d8fb7dc0012d1a87c081ebf70a43941df24d", kill_on_drop: false }`
[INFO] [stdout] 448bda0d6e49e00c1416f60e67f6d8fb7dc0012d1a87c081ebf70a43941df24d
