[INFO] fetching crate itertools 0.9.0...
[INFO] documenting itertools-0.9.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate itertools 0.9.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate itertools 0.9.0 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate itertools 0.9.0
[INFO] finished tweaking crates.io crate itertools 0.9.0
[INFO] tweaked toml for crates.io crate itertools 0.9.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate itertools 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6286e9270a3f6946b455e0203ee13dcc5a49d641f7cd428af1b258199e3bc86b
[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" "6286e9270a3f6946b455e0203ee13dcc5a49d641f7cd428af1b258199e3bc86b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6286e9270a3f6946b455e0203ee13dcc5a49d641f7cd428af1b258199e3bc86b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6286e9270a3f6946b455e0203ee13dcc5a49d641f7cd428af1b258199e3bc86b", kill_on_drop: false }`
[INFO] [stdout] 6286e9270a3f6946b455e0203ee13dcc5a49d641f7cd428af1b258199e3bc86b
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc4d4b8b6c1ff15acd99e4a586edaa0ce94fb9282d8afca044af98b62a6e4204
[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" "cc4d4b8b6c1ff15acd99e4a586edaa0ce94fb9282d8afca044af98b62a6e4204", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]  Documenting itertools v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[has_left]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/either_or_both.rs:28:31
[INFO] [stdout]    |
[INFO] [stdout] 28 |     /// Exclusive version of [`has_left`].
[INFO] [stdout]    |                               ^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[has_right]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/either_or_both.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |     /// Exclusive version of [`has_right`].
[INFO] [stdout]    |                               ^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "cc4d4b8b6c1ff15acd99e4a586edaa0ce94fb9282d8afca044af98b62a6e4204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc4d4b8b6c1ff15acd99e4a586edaa0ce94fb9282d8afca044af98b62a6e4204", kill_on_drop: false }`
[INFO] [stdout] cc4d4b8b6c1ff15acd99e4a586edaa0ce94fb9282d8afca044af98b62a6e4204