[INFO] fetching crate art-tree 0.2.0...
[INFO] documenting art-tree-0.2.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate art-tree 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate art-tree 0.2.0 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 art-tree 0.2.0
[INFO] finished tweaking crates.io crate art-tree 0.2.0
[INFO] tweaked toml for crates.io crate art-tree 0.2.0 written to /workspace/builds/worker-13/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] c5b3e2c7b76cab360bf46169f1dc367e39b6b4e7533461368a7de52e6628657a
[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" "c5b3e2c7b76cab360bf46169f1dc367e39b6b4e7533461368a7de52e6628657a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5b3e2c7b76cab360bf46169f1dc367e39b6b4e7533461368a7de52e6628657a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5b3e2c7b76cab360bf46169f1dc367e39b6b4e7533461368a7de52e6628657a", kill_on_drop: false }`
[INFO] [stdout] c5b3e2c7b76cab360bf46169f1dc367e39b6b4e7533461368a7de52e6628657a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 7fd1b3a0c508276e1b35377e347404b5043cfcaf186a88620e1b14c9a6d2b44e
[INFO] running `Command { std: "docker" "start" "-a" "7fd1b3a0c508276e1b35377e347404b5043cfcaf186a88620e1b14c9a6d2b44e", kill_on_drop: false }`
[INFO] [stderr]  Documenting art-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Art`
[INFO] [stdout]  --> src/keys.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | /// Trait represent [Art] key.
[INFO] [stdout]   |                      ^^^ no item named `Art` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Art`
[INFO] [stdout]   --> src/keys.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     /// [Art] tree.
[INFO] [stdout]    |          ^^^ no item named `Art` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `ART`
[INFO] [stdout]   --> src/lib.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 74 |     /// Create empty [ART] tree.
[INFO] [stdout]    |                       ^^^ no item named `ART` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "7fd1b3a0c508276e1b35377e347404b5043cfcaf186a88620e1b14c9a6d2b44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd1b3a0c508276e1b35377e347404b5043cfcaf186a88620e1b14c9a6d2b44e", kill_on_drop: false }`
[INFO] [stdout] 7fd1b3a0c508276e1b35377e347404b5043cfcaf186a88620e1b14c9a6d2b44e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "--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] 431f8653847fd72ef91afef1a180034eebfd79fd642f18e0107f1ec67e906363
[INFO] running `Command { std: "docker" "start" "-a" "431f8653847fd72ef91afef1a180034eebfd79fd642f18e0107f1ec67e906363", kill_on_drop: false }`
[INFO] [stderr]  Documenting art-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Art`
[INFO] [stdout]  --> src/keys.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | /// Trait represent [Art] key.
[INFO] [stdout]   |                      ^^^ no item named `Art` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Art`
[INFO] [stdout]   --> src/keys.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     /// [Art] tree.
[INFO] [stdout]    |          ^^^ no item named `Art` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `ART`
[INFO] [stdout]   --> src/lib.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 74 |     /// Create empty [ART] tree.
[INFO] [stdout]    |                       ^^^ no item named `ART` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "431f8653847fd72ef91afef1a180034eebfd79fd642f18e0107f1ec67e906363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "431f8653847fd72ef91afef1a180034eebfd79fd642f18e0107f1ec67e906363", kill_on_drop: false }`
[INFO] [stdout] 431f8653847fd72ef91afef1a180034eebfd79fd642f18e0107f1ec67e906363