[INFO] fetching crate lpc55-pac 0.4.0...
[INFO] documenting lpc55-pac-0.4.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate lpc55-pac 0.4.0 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate lpc55-pac 0.4.0 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 lpc55-pac 0.4.0
[INFO] finished tweaking crates.io crate lpc55-pac 0.4.0
[INFO] tweaked toml for crates.io crate lpc55-pac 0.4.0 written to /workspace/builds/worker-78/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 8cffad9eb7d8555945068e9c2739569b7c2fb5f601edfaf01d8068ee10d60007
[INFO] running `Command { std: "docker" "start" "-a" "8cffad9eb7d8555945068e9c2739569b7c2fb5f601edfaf01d8068ee10d60007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cffad9eb7d8555945068e9c2739569b7c2fb5f601edfaf01d8068ee10d60007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cffad9eb7d8555945068e9c2739569b7c2fb5f601edfaf01d8068ee10d60007", kill_on_drop: false }`
[INFO] [stdout] 8cffad9eb7d8555945068e9c2739569b7c2fb5f601edfaf01d8068ee10d60007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] [stdout] 966496f94ff2f3064379d048f98a2e64bef5a930d67944a082126e22f8a60d31
[INFO] running `Command { std: "docker" "start" "-a" "966496f94ff2f3064379d048f98a2e64bef5a930d67944a082126e22f8a60d31", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cortex-m v0.7.3
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling lpc55-pac v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.6
[INFO] [stderr]  Documenting lpc55-pac v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `lpc55-pac`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name lpc55_pac 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 cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-2a5f312dc8cb2353.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-7026868ef2666f61.rmeta --cap-lints=warn --crate-version 0.4.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "966496f94ff2f3064379d048f98a2e64bef5a930d67944a082126e22f8a60d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "966496f94ff2f3064379d048f98a2e64bef5a930d67944a082126e22f8a60d31", kill_on_drop: false }`
[INFO] [stdout] 966496f94ff2f3064379d048f98a2e64bef5a930d67944a082126e22f8a60d31