[INFO] fetching crate mdbook-checklist 0.1.1...
[INFO] documenting mdbook-checklist-0.1.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate mdbook-checklist 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate mdbook-checklist 0.1.1 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 mdbook-checklist 0.1.1
[INFO] finished tweaking crates.io crate mdbook-checklist 0.1.1
[INFO] tweaked toml for crates.io crate mdbook-checklist 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate mdbook-checklist 0.1.1 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] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 346e026fce5580aff24e80b48b09c7af59da38b99cae73087ab2e4f63f8b1add
[INFO] running `Command { std: "docker" "start" "-a" "346e026fce5580aff24e80b48b09c7af59da38b99cae73087ab2e4f63f8b1add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "346e026fce5580aff24e80b48b09c7af59da38b99cae73087ab2e4f63f8b1add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "346e026fce5580aff24e80b48b09c7af59da38b99cae73087ab2e4f63f8b1add", kill_on_drop: false }`
[INFO] [stdout] 346e026fce5580aff24e80b48b09c7af59da38b99cae73087ab2e4f63f8b1add
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] f4fb95748de9425e5cd21e288fee3f45b0d1f9967b42880d68f7f900714cfeab
[INFO] running `Command { std: "docker" "start" "-a" "f4fb95748de9425e5cd21e288fee3f45b0d1f9967b42880d68f7f900714cfeab", kill_on_drop: false }`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "f4fb95748de9425e5cd21e288fee3f45b0d1f9967b42880d68f7f900714cfeab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4fb95748de9425e5cd21e288fee3f45b0d1f9967b42880d68f7f900714cfeab", kill_on_drop: false }`
[INFO] [stdout] f4fb95748de9425e5cd21e288fee3f45b0d1f9967b42880d68f7f900714cfeab