[INFO] fetching crate async-once-cell 0.4.0...
[INFO] documenting async-once-cell-0.4.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate async-once-cell 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate async-once-cell 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 async-once-cell 0.4.0
[INFO] finished tweaking crates.io crate async-once-cell 0.4.0
[INFO] tweaked toml for crates.io crate async-once-cell 0.4.0 written to /workspace/builds/worker-8/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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e5ebf80d38a044d3c8c7d96b73ee4f4f3e2ceff37ed84c02620f0947da651a33
[INFO] running `Command { std: "docker" "start" "-a" "e5ebf80d38a044d3c8c7d96b73ee4f4f3e2ceff37ed84c02620f0947da651a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5ebf80d38a044d3c8c7d96b73ee4f4f3e2ceff37ed84c02620f0947da651a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5ebf80d38a044d3c8c7d96b73ee4f4f3e2ceff37ed84c02620f0947da651a33", kill_on_drop: false }`
[INFO] [stdout] e5ebf80d38a044d3c8c7d96b73ee4f4f3e2ceff37ed84c02620f0947da651a33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 9137c9e5252d5fb09eaefe002d97ac0b7893ea5fc991add49d40f663bcff78b1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9137c9e5252d5fb09eaefe002d97ac0b7893ea5fc991add49d40f663bcff78b1", kill_on_drop: false }`
[INFO] [stderr]  Documenting async-once-cell v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "9137c9e5252d5fb09eaefe002d97ac0b7893ea5fc991add49d40f663bcff78b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9137c9e5252d5fb09eaefe002d97ac0b7893ea5fc991add49d40f663bcff78b1", kill_on_drop: false }`
[INFO] [stdout] 9137c9e5252d5fb09eaefe002d97ac0b7893ea5fc991add49d40f663bcff78b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "--all-features" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d9bf5a02e3c45ac09b2149946ced478f1377fea128a8a20eefc9703d0da894a6
[INFO] running `Command { std: "docker" "start" "-a" "d9bf5a02e3c45ac09b2149946ced478f1377fea128a8a20eefc9703d0da894a6", kill_on_drop: false }`
[INFO] [stderr]  Documenting async-once-cell v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "d9bf5a02e3c45ac09b2149946ced478f1377fea128a8a20eefc9703d0da894a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9bf5a02e3c45ac09b2149946ced478f1377fea128a8a20eefc9703d0da894a6", kill_on_drop: false }`
[INFO] [stdout] d9bf5a02e3c45ac09b2149946ced478f1377fea128a8a20eefc9703d0da894a6