[INFO] fetching crate wu-diff 0.1.2...
[INFO] documenting wu-diff-0.1.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate wu-diff 0.1.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate wu-diff 0.1.2 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 wu-diff 0.1.2
[INFO] finished tweaking crates.io crate wu-diff 0.1.2
[INFO] tweaked toml for crates.io crate wu-diff 0.1.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate wu-diff 0.1.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.11.0
[INFO] [stderr]   Downloaded num-traits v0.2.2
[INFO] [stderr]   Downloaded num_cpus v1.8.0
[INFO] [stderr]   Downloaded nodrop v0.1.12
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded crossbeam-deque v0.2.0
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[INFO] [stderr]   Downloaded cfg-if v0.1.2
[INFO] [stderr]   Downloaded ucd-util v0.1.1
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[INFO] [stderr]   Downloaded libc v0.2.40
[INFO] [stderr]   Downloaded unicode-normalization v0.1.7
[INFO] [stderr]   Downloaded quick-error v1.2.1
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded enum_primitive v0.1.1
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[INFO] [stderr]   Downloaded itertools v0.7.8
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[INFO] [stderr]   Downloaded serde_json v1.0.16
[INFO] [stderr]   Downloaded either v1.5.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
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[INFO] [stderr]   Downloaded crossbeam-utils v0.2.2
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded inflate v0.3.4
[INFO] [stderr]   Downloaded num-iter v0.1.35
[INFO] [stderr]   Downloaded regex-syntax v0.6.1
[INFO] [stderr]   Downloaded vec_map v0.8.0
[INFO] [stderr]   Downloaded regex v1.0.1
[INFO] [stderr]   Downloaded atty v0.2.9
[INFO] [stderr]   Downloaded cc v1.0.10
[INFO] [stderr]   Downloaded cargo_metadata v0.5.4
[INFO] [stderr]   Downloaded if_chain v0.1.2
[INFO] [stderr]   Downloaded getopts v0.2.17
[INFO] [stderr]   Downloaded criterion-stats v0.2.3
[INFO] [stderr]   Downloaded failure_derive v0.1.1
[INFO] [stderr]   Downloaded itertools-num v0.1.1
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[INFO] [stderr]   Downloaded rustc_version v0.2.2
[INFO] [stderr]   Downloaded pest_derive v1.0.7
[INFO] [stderr]   Downloaded handlebars v0.31.0
[INFO] [stderr]   Downloaded serde_derive v1.0.42
[INFO] [stderr]   Downloaded failure v0.1.1
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[INFO] [stderr]   Downloaded criterion-plot v0.2.3
[INFO] [stderr]   Downloaded deflate v0.7.18
[INFO] [stderr]   Downloaded serde_derive_internals v0.23.1
[INFO] [stderr]   Downloaded serde v1.0.42
[INFO] [stderr]   Downloaded rayon v1.0.1
[INFO] [stderr]   Downloaded url v1.7.0
[INFO] [stderr]   Downloaded image v0.18.0
[INFO] [stderr]   Downloaded criterion v0.2.3
[INFO] [stderr]   Downloaded clippy_lints v0.0.209
[INFO] [stderr]   Downloaded regex-syntax v0.5.5
[INFO] [stderr]   Downloaded clippy v0.0.209
[INFO] [stderr]   Downloaded regex v0.2.10
[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] 887a2f0aae6139c3cb845edea587742b2b43bf821043cfb5086508c8a8997349
[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" "887a2f0aae6139c3cb845edea587742b2b43bf821043cfb5086508c8a8997349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "887a2f0aae6139c3cb845edea587742b2b43bf821043cfb5086508c8a8997349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "887a2f0aae6139c3cb845edea587742b2b43bf821043cfb5086508c8a8997349", kill_on_drop: false }`
[INFO] [stdout] 887a2f0aae6139c3cb845edea587742b2b43bf821043cfb5086508c8a8997349
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dd8e51b65827c13e41e5fd60c62b5f87e1b25545b7d83ad6968ec0dde53ffb74
[INFO] running `Command { std: "docker" "start" "-a" "dd8e51b65827c13e41e5fd60c62b5f87e1b25545b7d83ad6968ec0dde53ffb74", kill_on_drop: false }`
[INFO] [stderr]  Documenting wu-diff v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "dd8e51b65827c13e41e5fd60c62b5f87e1b25545b7d83ad6968ec0dde53ffb74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd8e51b65827c13e41e5fd60c62b5f87e1b25545b7d83ad6968ec0dde53ffb74", kill_on_drop: false }`
[INFO] [stdout] dd8e51b65827c13e41e5fd60c62b5f87e1b25545b7d83ad6968ec0dde53ffb74
[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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 389ad6c9dfb299166218c3e7e719b5b3916a84a5e5e68a85bedb56ab0fef0e3e
[INFO] running `Command { std: "docker" "start" "-a" "389ad6c9dfb299166218c3e7e719b5b3916a84a5e5e68a85bedb56ab0fef0e3e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting wu-diff v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "389ad6c9dfb299166218c3e7e719b5b3916a84a5e5e68a85bedb56ab0fef0e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "389ad6c9dfb299166218c3e7e719b5b3916a84a5e5e68a85bedb56ab0fef0e3e", kill_on_drop: false }`
[INFO] [stdout] 389ad6c9dfb299166218c3e7e719b5b3916a84a5e5e68a85bedb56ab0fef0e3e