[INFO] fetching crate machine 0.3.0...
[INFO] documenting machine-0.3.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate machine 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate machine 0.3.0 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 machine 0.3.0
[INFO] finished tweaking crates.io crate machine 0.3.0
[INFO] tweaked toml for crates.io crate machine 0.3.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded case v1.0.0
[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] c757b4d50a333aad376b4ad4aa164b4c992d694611c2d36e4899f9a16a893fd8
[INFO] running `Command { std: "docker" "start" "-a" "c757b4d50a333aad376b4ad4aa164b4c992d694611c2d36e4899f9a16a893fd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c757b4d50a333aad376b4ad4aa164b4c992d694611c2d36e4899f9a16a893fd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c757b4d50a333aad376b4ad4aa164b4c992d694611c2d36e4899f9a16a893fd8", kill_on_drop: false }`
[INFO] [stdout] c757b4d50a333aad376b4ad4aa164b4c992d694611c2d36e4899f9a16a893fd8
[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] 8842bb50f81ba3a1d54d437c141f851ee96f2aa0c5e39f702577cd5104704306
[INFO] running `Command { std: "docker" "start" "-a" "8842bb50f81ba3a1d54d437c141f851ee96f2aa0c5e39f702577cd5104704306", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking case v1.0.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]  Documenting machine v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "8842bb50f81ba3a1d54d437c141f851ee96f2aa0c5e39f702577cd5104704306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8842bb50f81ba3a1d54d437c141f851ee96f2aa0c5e39f702577cd5104704306", kill_on_drop: false }`
[INFO] [stdout] 8842bb50f81ba3a1d54d437c141f851ee96f2aa0c5e39f702577cd5104704306
[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] b4e8587e69d08c5b615d709f5c0b6b809e50b1913cd16a17b8e5bb9bd7cb08df
[INFO] running `Command { std: "docker" "start" "-a" "b4e8587e69d08c5b615d709f5c0b6b809e50b1913cd16a17b8e5bb9bd7cb08df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking case v1.0.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]  Documenting machine v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `Command { std: "docker" "inspect" "b4e8587e69d08c5b615d709f5c0b6b809e50b1913cd16a17b8e5bb9bd7cb08df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e8587e69d08c5b615d709f5c0b6b809e50b1913cd16a17b8e5bb9bd7cb08df", kill_on_drop: false }`
[INFO] [stdout] b4e8587e69d08c5b615d709f5c0b6b809e50b1913cd16a17b8e5bb9bd7cb08df