[INFO] fetching crate exttest 0.1.0...
[INFO] documenting exttest-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate exttest 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate exttest 0.1.0 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 exttest 0.1.0
[INFO] finished tweaking crates.io crate exttest 0.1.0
[INFO] tweaked toml for crates.io crate exttest 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate exttest 0.1.0 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 camino v1.0.1
[INFO] [stderr]   Downloaded nested v0.1.1
[INFO] [stderr]   Downloaded hakari v0.2.0
[INFO] [stderr]   Downloaded guppy v0.8.0
[INFO] [stderr]   Downloaded cfg-expr v0.7.1
[INFO] [stderr]   Downloaded supercow v0.1.0
[INFO] [stderr]   Downloaded determinator v0.3.0
[INFO] [stderr]   Downloaded diffy v0.2.1
[INFO] [stderr]   Downloaded x-core v0.1.0
[INFO] [stderr]   Downloaded x-lint v0.1.0
[INFO] [stderr]   Downloaded diffus v0.9.1
[INFO] [stderr]   Downloaded guppy-summaries v0.4.0
[INFO] [stderr]   Downloaded target-spec v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 2ef7dda97bd37a1346819fab9b3e5925b31eed97746116123217e9625e87953d
[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" "2ef7dda97bd37a1346819fab9b3e5925b31eed97746116123217e9625e87953d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ef7dda97bd37a1346819fab9b3e5925b31eed97746116123217e9625e87953d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef7dda97bd37a1346819fab9b3e5925b31eed97746116123217e9625e87953d", kill_on_drop: false }`
[INFO] [stdout] 2ef7dda97bd37a1346819fab9b3e5925b31eed97746116123217e9625e87953d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 244e6ff2e4738ab20163b8b5bccd0cec18a0ffc442dbf245ac273eab0ab152ba
[INFO] running `Command { std: "docker" "start" "-a" "244e6ff2e4738ab20163b8b5bccd0cec18a0ffc442dbf245ac273eab0ab152ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling camino v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.63
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling target-spec v0.7.0
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking nested v0.1.1
[INFO] [stderr]     Checking supercow v0.1.0
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking twox-hash v1.6.0
[INFO] [stderr]     Checking diffy v0.2.1
[INFO] [stderr]     Checking cfg-expr v0.7.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking colored-diff v0.2.2
[INFO] [stderr]     Checking diffus v0.9.1
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking atomicwrites v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking rental v0.5.5
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking cargo-platform v0.1.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking guppy-summaries v0.4.0
[INFO] [stderr]     Checking cargo_metadata v0.12.3
[INFO] [stderr]     Checking guppy v0.8.0
[INFO] [stderr]     Checking determinator v0.3.0
[INFO] [stderr]     Checking hakari v0.2.0
[INFO] [stderr]     Checking x-core v0.1.0
[INFO] [stderr]     Checking x-lint v0.1.0
[INFO] [stderr]  Documenting exttest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.5, x-core v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "244e6ff2e4738ab20163b8b5bccd0cec18a0ffc442dbf245ac273eab0ab152ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "244e6ff2e4738ab20163b8b5bccd0cec18a0ffc442dbf245ac273eab0ab152ba", kill_on_drop: false }`
[INFO] [stdout] 244e6ff2e4738ab20163b8b5bccd0cec18a0ffc442dbf245ac273eab0ab152ba