[INFO] fetching crate cfn 0.0.8...
[INFO] documenting cfn-0.0.8 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate cfn 0.0.8 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cfn 0.0.8 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cfn 0.0.8
[INFO] finished tweaking crates.io crate cfn 0.0.8
[INFO] tweaked toml for crates.io crate cfn 0.0.8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e71a80153c95534ec1894071cf6025dc967427a4b74af3bb38741adbde3a69a9
[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" "e71a80153c95534ec1894071cf6025dc967427a4b74af3bb38741adbde3a69a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e71a80153c95534ec1894071cf6025dc967427a4b74af3bb38741adbde3a69a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71a80153c95534ec1894071cf6025dc967427a4b74af3bb38741adbde3a69a9", kill_on_drop: false }`
[INFO] [stdout] e71a80153c95534ec1894071cf6025dc967427a4b74af3bb38741adbde3a69a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 54b5f4f4341cd7e1616d02935f3e4eb0ee7e02433c4e02dc6b2a39612400b83a
[INFO] running `Command { std: "docker" "start" "-a" "54b5f4f4341cd7e1616d02935f3e4eb0ee7e02433c4e02dc6b2a39612400b83a", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]  Documenting cfn v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `cfn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name cfn src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-d126eefddf98a6b0.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5678c1422d6b64cb.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-05e319b971c8ec6f.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-9010c99f689210cb.rmeta --cap-lints=warn --crate-version 0.0.8` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "54b5f4f4341cd7e1616d02935f3e4eb0ee7e02433c4e02dc6b2a39612400b83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b5f4f4341cd7e1616d02935f3e4eb0ee7e02433c4e02dc6b2a39612400b83a", kill_on_drop: false }`
[INFO] [stdout] 54b5f4f4341cd7e1616d02935f3e4eb0ee7e02433c4e02dc6b2a39612400b83a