[INFO] fetching crate threadlanes 0.1.0...
[INFO] documenting threadlanes-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate threadlanes 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate threadlanes 0.1.0 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 threadlanes 0.1.0
[INFO] finished tweaking crates.io crate threadlanes 0.1.0
[INFO] tweaked toml for crates.io crate threadlanes 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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" "+1.61.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded countdown_latch v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 8d05056aa8755a0d994abc807d58273728576f4669b7d8c069d9450f5904dc21
[INFO] running `Command { std: "docker" "start" "-a" "8d05056aa8755a0d994abc807d58273728576f4669b7d8c069d9450f5904dc21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d05056aa8755a0d994abc807d58273728576f4669b7d8c069d9450f5904dc21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d05056aa8755a0d994abc807d58273728576f4669b7d8c069d9450f5904dc21", kill_on_drop: false }`
[INFO] [stdout] 8d05056aa8755a0d994abc807d58273728576f4669b7d8c069d9450f5904dc21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 1ae33a408d2370ea0d267cbb0fb5a1f01c125cfc9122f97993a3c5e5ccf9e4ec
[INFO] running `Command { std: "docker" "start" "-a" "1ae33a408d2370ea0d267cbb0fb5a1f01c125cfc9122f97993a3c5e5ccf9e4ec", kill_on_drop: false }`
[INFO] [stderr]     Checking countdown_latch v0.1.1
[INFO] [stderr]  Documenting threadlanes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "1ae33a408d2370ea0d267cbb0fb5a1f01c125cfc9122f97993a3c5e5ccf9e4ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ae33a408d2370ea0d267cbb0fb5a1f01c125cfc9122f97993a3c5e5ccf9e4ec", kill_on_drop: false }`
[INFO] [stdout] 1ae33a408d2370ea0d267cbb0fb5a1f01c125cfc9122f97993a3c5e5ccf9e4ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 34ea1b5cdd5d7706c5e0cd1fb939ce0e67e688077db9ad007815875e5c08da18
[INFO] running `Command { std: "docker" "start" "-a" "34ea1b5cdd5d7706c5e0cd1fb939ce0e67e688077db9ad007815875e5c08da18", kill_on_drop: false }`
[INFO] [stderr]     Checking countdown_latch v0.1.1
[INFO] [stderr]  Documenting threadlanes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "34ea1b5cdd5d7706c5e0cd1fb939ce0e67e688077db9ad007815875e5c08da18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34ea1b5cdd5d7706c5e0cd1fb939ce0e67e688077db9ad007815875e5c08da18", kill_on_drop: false }`
[INFO] [stdout] 34ea1b5cdd5d7706c5e0cd1fb939ce0e67e688077db9ad007815875e5c08da18