[INFO] fetching crate topo_sort 0.4.0...
[INFO] documenting topo_sort-0.4.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate topo_sort 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate topo_sort 0.4.0 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 topo_sort 0.4.0
[INFO] finished tweaking crates.io crate topo_sort 0.4.0
[INFO] tweaked toml for crates.io crate topo_sort 0.4.0 written to /workspace/builds/worker-4/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 4a4d351c991c6cca5f08435c4629a759f0f1576925f29466c0bb6256defd5596
[INFO] running `Command { std: "docker" "start" "-a" "4a4d351c991c6cca5f08435c4629a759f0f1576925f29466c0bb6256defd5596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a4d351c991c6cca5f08435c4629a759f0f1576925f29466c0bb6256defd5596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a4d351c991c6cca5f08435c4629a759f0f1576925f29466c0bb6256defd5596", kill_on_drop: false }`
[INFO] [stdout] 4a4d351c991c6cca5f08435c4629a759f0f1576925f29466c0bb6256defd5596
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] b77415da4546510b92aaf90fa0616260556b84d2e56dd375319715868658a88f
[INFO] running `Command { std: "docker" "start" "-a" "b77415da4546510b92aaf90fa0616260556b84d2e56dd375319715868658a88f", kill_on_drop: false }`
[INFO] [stderr]  Documenting topo_sort v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "b77415da4546510b92aaf90fa0616260556b84d2e56dd375319715868658a88f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b77415da4546510b92aaf90fa0616260556b84d2e56dd375319715868658a88f", kill_on_drop: false }`
[INFO] [stdout] b77415da4546510b92aaf90fa0616260556b84d2e56dd375319715868658a88f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 086cc35f13c35da3ebd3fd796bea115bfc79e59ee1670ccbd7b10bd2cb7fe15d
[INFO] running `Command { std: "docker" "start" "-a" "086cc35f13c35da3ebd3fd796bea115bfc79e59ee1670ccbd7b10bd2cb7fe15d", kill_on_drop: false }`
[INFO] [stderr]  Documenting topo_sort v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "086cc35f13c35da3ebd3fd796bea115bfc79e59ee1670ccbd7b10bd2cb7fe15d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086cc35f13c35da3ebd3fd796bea115bfc79e59ee1670ccbd7b10bd2cb7fe15d", kill_on_drop: false }`
[INFO] [stdout] 086cc35f13c35da3ebd3fd796bea115bfc79e59ee1670ccbd7b10bd2cb7fe15d