[INFO] fetching crate engin 999999999.999999999.999999999...
[INFO] documenting engin-999999999.999999999.999999999 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate engin 999999999.999999999.999999999 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate engin 999999999.999999999.999999999 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate engin 999999999.999999999.999999999
[INFO] finished tweaking crates.io crate engin 999999999.999999999.999999999
[INFO] tweaked toml for crates.io crate engin 999999999.999999999.999999999 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate crates.io crate engin 999999999.999999999.999999999 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1f331af4a0f08d60b1772ce88e38f734885dd75d3516a0730fd9ead3e4bc6ad
[INFO] running `Command { std: "docker" "start" "-a" "e1f331af4a0f08d60b1772ce88e38f734885dd75d3516a0730fd9ead3e4bc6ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1f331af4a0f08d60b1772ce88e38f734885dd75d3516a0730fd9ead3e4bc6ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1f331af4a0f08d60b1772ce88e38f734885dd75d3516a0730fd9ead3e4bc6ad", kill_on_drop: false }`
[INFO] [stdout] e1f331af4a0f08d60b1772ce88e38f734885dd75d3516a0730fd9ead3e4bc6ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 976fb69b1112087d493a0570e0cd0765b8eecbde4310f3079114367cb52c38a9
[INFO] running `Command { std: "docker" "start" "-a" "976fb69b1112087d493a0570e0cd0765b8eecbde4310f3079114367cb52c38a9", kill_on_drop: false }`
[INFO] [stderr]  Documenting engin v999999999.999999999.999999999 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "976fb69b1112087d493a0570e0cd0765b8eecbde4310f3079114367cb52c38a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "976fb69b1112087d493a0570e0cd0765b8eecbde4310f3079114367cb52c38a9", kill_on_drop: false }`
[INFO] [stdout] 976fb69b1112087d493a0570e0cd0765b8eecbde4310f3079114367cb52c38a9