[INFO] fetching crate rtdlib 1.7.0...
[INFO] documenting rtdlib-1.7.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate rtdlib 1.7.0 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate rtdlib 1.7.0 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 rtdlib 1.7.0
[INFO] finished tweaking crates.io crate rtdlib 1.7.0
[INFO] tweaked toml for crates.io crate rtdlib 1.7.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rtdlib-sys v0.1.0
[INFO] [stderr]   Downloaded serde-aux v0.6.1
[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] 47f3debfdfdee9b367317d1c04b6c8214c4ea6fde0d7ed8f00fb456e0d479798
[INFO] running `Command { std: "docker" "start" "-a" "47f3debfdfdee9b367317d1c04b6c8214c4ea6fde0d7ed8f00fb456e0d479798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47f3debfdfdee9b367317d1c04b6c8214c4ea6fde0d7ed8f00fb456e0d479798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47f3debfdfdee9b367317d1c04b6c8214c4ea6fde0d7ed8f00fb456e0d479798", kill_on_drop: false }`
[INFO] [stdout] 47f3debfdfdee9b367317d1c04b6c8214c4ea6fde0d7ed8f00fb456e0d479798
[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] 57ef09059fbaeac612c8e29968651f84144b2f3d6cdec71821bb37524f184d98
[INFO] running `Command { std: "docker" "start" "-a" "57ef09059fbaeac612c8e29968651f84144b2f3d6cdec71821bb37524f184d98", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking serde-aux v0.6.1
[INFO] [stderr]  Documenting rtdlib v1.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `rtdlib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name rtdlib src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-d38c567ce4ccc50e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5678c1422d6b64cb.rmeta --extern serde_aux=/opt/rustwide/target/debug/deps/libserde_aux-1ba1b832fb82aee3.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 --extern uuid=/opt/rustwide/target/debug/deps/libuuid-e7ef1fab0daa9cda.rmeta --cap-lints=warn --crate-version 1.7.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "57ef09059fbaeac612c8e29968651f84144b2f3d6cdec71821bb37524f184d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57ef09059fbaeac612c8e29968651f84144b2f3d6cdec71821bb37524f184d98", kill_on_drop: false }`
[INFO] [stdout] 57ef09059fbaeac612c8e29968651f84144b2f3d6cdec71821bb37524f184d98