[INFO] fetching crate vertree 0.2.2...
[INFO] documenting vertree-0.2.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate vertree 0.2.2 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate vertree 0.2.2 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 crates.io crate vertree 0.2.2
[INFO] finished tweaking crates.io crate vertree 0.2.2
[INFO] tweaked toml for crates.io crate vertree 0.2.2 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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" "+beta-2022-05-20" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] cb10955f6e3a4391e9467804098c9eb80d1c15ff6ac6acee2d363b3237231af1
[INFO] running `Command { std: "docker" "start" "-a" "cb10955f6e3a4391e9467804098c9eb80d1c15ff6ac6acee2d363b3237231af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb10955f6e3a4391e9467804098c9eb80d1c15ff6ac6acee2d363b3237231af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb10955f6e3a4391e9467804098c9eb80d1c15ff6ac6acee2d363b3237231af1", kill_on_drop: false }`
[INFO] [stdout] cb10955f6e3a4391e9467804098c9eb80d1c15ff6ac6acee2d363b3237231af1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 1db61dfde2e425bdc3e8b915fcd42a1e791bc31daf50b8246ffcf6550f914c60
[INFO] running `Command { std: "docker" "start" "-a" "1db61dfde2e425bdc3e8b915fcd42a1e791bc31daf50b8246ffcf6550f914c60", kill_on_drop: false }`
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "1db61dfde2e425bdc3e8b915fcd42a1e791bc31daf50b8246ffcf6550f914c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db61dfde2e425bdc3e8b915fcd42a1e791bc31daf50b8246ffcf6550f914c60", kill_on_drop: false }`
[INFO] [stdout] 1db61dfde2e425bdc3e8b915fcd42a1e791bc31daf50b8246ffcf6550f914c60