[INFO] cloning repository https://github.com/malik-aljabr/md2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/malik-aljabr/md2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalik-aljabr%2Fmd2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalik-aljabr%2Fmd2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab65d7dd9414c72ea0a057769b2ab5a597e1391c
[INFO] documenting malik-aljabr/md2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalik-aljabr%2Fmd2" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/malik-aljabr/md2 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/malik-aljabr/md2
[INFO] finished tweaking git repo https://github.com/malik-aljabr/md2
[INFO] tweaked toml for git repo https://github.com/malik-aljabr/md2 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/malik-aljabr/md2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 209da82c5db60b384416e8967de9ea32abefbd73a297c0c2f2e7c93d17af214a
[INFO] running `Command { std: "docker" "start" "-a" "209da82c5db60b384416e8967de9ea32abefbd73a297c0c2f2e7c93d17af214a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "209da82c5db60b384416e8967de9ea32abefbd73a297c0c2f2e7c93d17af214a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "209da82c5db60b384416e8967de9ea32abefbd73a297c0c2f2e7c93d17af214a", kill_on_drop: false }`
[INFO] [stdout] 209da82c5db60b384416e8967de9ea32abefbd73a297c0c2f2e7c93d17af214a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da238a6153153c3b43e5489d1f2a96b2bcfb0614d8a1b746110bfc09fcf75bf4
[INFO] running `Command { std: "docker" "start" "-a" "da238a6153153c3b43e5489d1f2a96b2bcfb0614d8a1b746110bfc09fcf75bf4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "da238a6153153c3b43e5489d1f2a96b2bcfb0614d8a1b746110bfc09fcf75bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da238a6153153c3b43e5489d1f2a96b2bcfb0614d8a1b746110bfc09fcf75bf4", kill_on_drop: false }`
[INFO] [stdout] da238a6153153c3b43e5489d1f2a96b2bcfb0614d8a1b746110bfc09fcf75bf4