[INFO] fetching crate singlyton 4.1.1...
[INFO] documenting singlyton-4.1.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate singlyton 4.1.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate singlyton 4.1.1 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 singlyton 4.1.1
[INFO] finished tweaking crates.io crate singlyton 4.1.1
[INFO] tweaked toml for crates.io crate singlyton 4.1.1 written to /workspace/builds/worker-14/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomic_refcell v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 904dc4c970a4d153b8c02e5287a19273db4c2e10f318c6e38500c9957e81cdcf
[INFO] running `Command { std: "docker" "start" "-a" "904dc4c970a4d153b8c02e5287a19273db4c2e10f318c6e38500c9957e81cdcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "904dc4c970a4d153b8c02e5287a19273db4c2e10f318c6e38500c9957e81cdcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "904dc4c970a4d153b8c02e5287a19273db4c2e10f318c6e38500c9957e81cdcf", kill_on_drop: false }`
[INFO] [stdout] 904dc4c970a4d153b8c02e5287a19273db4c2e10f318c6e38500c9957e81cdcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 53b585333cdd8950af4d46f07011e75383802aa40ae4edd178000f3f08e59645
[INFO] running `Command { std: "docker" "start" "-a" "53b585333cdd8950af4d46f07011e75383802aa40ae4edd178000f3f08e59645", kill_on_drop: false }`
[INFO] [stderr]     Checking atomic_refcell v0.1.8
[INFO] [stderr]  Documenting singlyton v4.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "53b585333cdd8950af4d46f07011e75383802aa40ae4edd178000f3f08e59645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53b585333cdd8950af4d46f07011e75383802aa40ae4edd178000f3f08e59645", kill_on_drop: false }`
[INFO] [stdout] 53b585333cdd8950af4d46f07011e75383802aa40ae4edd178000f3f08e59645
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 2eedd4d315f930ba178e18ebe8b7f0cdeb78f9c22a932c903c59fddcb11c30b3
[INFO] running `Command { std: "docker" "start" "-a" "2eedd4d315f930ba178e18ebe8b7f0cdeb78f9c22a932c903c59fddcb11c30b3", kill_on_drop: false }`
[INFO] [stderr]     Checking atomic_refcell v0.1.8
[INFO] [stderr]  Documenting singlyton v4.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "2eedd4d315f930ba178e18ebe8b7f0cdeb78f9c22a932c903c59fddcb11c30b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eedd4d315f930ba178e18ebe8b7f0cdeb78f9c22a932c903c59fddcb11c30b3", kill_on_drop: false }`
[INFO] [stdout] 2eedd4d315f930ba178e18ebe8b7f0cdeb78f9c22a932c903c59fddcb11c30b3