[INFO] cloning repository https://github.com/moziliar/duke_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/moziliar/duke_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoziliar%2Fduke_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoziliar%2Fduke_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac23c97cc307f0ec1447815e4832fbc63730f5c2
[INFO] documenting moziliar/duke_rust against 1.55.0 for beta-1.56-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoziliar%2Fduke_rust" "/workspace/builds/worker-63/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-63/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/moziliar/duke_rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/moziliar/duke_rust
[INFO] finished tweaking git repo https://github.com/moziliar/duke_rust
[INFO] tweaked toml for git repo https://github.com/moziliar/duke_rust written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate git repo https://github.com/moziliar/duke_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1fccf88a7e1efe39179497b741b4e84efd7017c0f8b79304e6ca6b71f71bad3
[INFO] running `Command { std: "docker" "start" "-a" "f1fccf88a7e1efe39179497b741b4e84efd7017c0f8b79304e6ca6b71f71bad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1fccf88a7e1efe39179497b741b4e84efd7017c0f8b79304e6ca6b71f71bad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1fccf88a7e1efe39179497b741b4e84efd7017c0f8b79304e6ca6b71f71bad3", kill_on_drop: false }`
[INFO] [stdout] f1fccf88a7e1efe39179497b741b4e84efd7017c0f8b79304e6ca6b71f71bad3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4f336f7ae14197cc0e5b717681c5207be8ca42447df5ef9fd00cc75a97c12dc
[INFO] running `Command { std: "docker" "start" "-a" "e4f336f7ae14197cc0e5b717681c5207be8ca42447df5ef9fd00cc75a97c12dc", kill_on_drop: false }`
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "e4f336f7ae14197cc0e5b717681c5207be8ca42447df5ef9fd00cc75a97c12dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4f336f7ae14197cc0e5b717681c5207be8ca42447df5ef9fd00cc75a97c12dc", kill_on_drop: false }`
[INFO] [stdout] e4f336f7ae14197cc0e5b717681c5207be8ca42447df5ef9fd00cc75a97c12dc