[INFO] fetching crate unhtml 0.7.5...
[INFO] documenting unhtml-0.7.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate unhtml 0.7.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate unhtml 0.7.5 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unhtml 0.7.5
[INFO] finished tweaking crates.io crate unhtml 0.7.5
[INFO] tweaked toml for crates.io crate unhtml 0.7.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "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-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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dbda380297caba448ac38e93f94f318786d48e61a089aa3b522f0dd3951644d0
[INFO] running `Command { std: "docker" "start" "-a" "dbda380297caba448ac38e93f94f318786d48e61a089aa3b522f0dd3951644d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbda380297caba448ac38e93f94f318786d48e61a089aa3b522f0dd3951644d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbda380297caba448ac38e93f94f318786d48e61a089aa3b522f0dd3951644d0", kill_on_drop: false }`
[INFO] [stdout] dbda380297caba448ac38e93f94f318786d48e61a089aa3b522f0dd3951644d0
[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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d96f77824c65823771134c4e59186a3f8cac443044a15224921fd69fa6c3fabc
[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" "d96f77824c65823771134c4e59186a3f8cac443044a15224921fd69fa6c3fabc", kill_on_drop: false }`
[INFO] [stderr]    Compiling procedural-masquerade v0.1.7
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling html5ever v0.24.1
[INFO] [stderr]    Compiling derive_more v0.99.9
[INFO] [stderr]     Checking string_cache v0.7.5
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling markup5ever v0.9.0
[INFO] [stderr]     Checking scraper v0.11.0
[INFO] [stderr]  Documenting unhtml v0.7.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.69s
[INFO] running `Command { std: "docker" "inspect" "d96f77824c65823771134c4e59186a3f8cac443044a15224921fd69fa6c3fabc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d96f77824c65823771134c4e59186a3f8cac443044a15224921fd69fa6c3fabc", kill_on_drop: false }`
[INFO] [stdout] d96f77824c65823771134c4e59186a3f8cac443044a15224921fd69fa6c3fabc