[INFO] fetching crate dot-canvas 0.1.1...
[INFO] documenting dot-canvas-0.1.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate dot-canvas 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dot-canvas 0.1.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dot-canvas 0.1.1
[INFO] finished tweaking crates.io crate dot-canvas 0.1.1
[INFO] tweaked toml for crates.io crate dot-canvas 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e32f6b37ffd7202c1915681d7e6ac3dec3d836f1904dbcef0dbdbfb267521fea
[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" "e32f6b37ffd7202c1915681d7e6ac3dec3d836f1904dbcef0dbdbfb267521fea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e32f6b37ffd7202c1915681d7e6ac3dec3d836f1904dbcef0dbdbfb267521fea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32f6b37ffd7202c1915681d7e6ac3dec3d836f1904dbcef0dbdbfb267521fea", kill_on_drop: false }`
[INFO] [stdout] e32f6b37ffd7202c1915681d7e6ac3dec3d836f1904dbcef0dbdbfb267521fea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66bb114daef84e9412726ce8b547c357673564959eb0bbfa88bc004f803bd681
[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" "66bb114daef84e9412726ce8b547c357673564959eb0bbfa88bc004f803bd681", kill_on_drop: false }`
[INFO] [stderr]  Documenting dot-canvas v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/grid.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  |   /// ```ignore
[INFO] [stdout]    |  _____^
[INFO] [stdout] 4  | | ///      0 1 2 3 4           B C D          BRAILLE ⣿
[INFO] [stdout] 5  | | ///     0┌─┬─┬─┬─┐        A┌─┬─┬─┬─┐E       ┌       ┐
[INFO] [stdout] 6  | | ///     1├─┼─┼─┼─┤         │ │ │ │ │         ─▮───▮─
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | | ///     8└─┴─┴─┴─┘        U└─┴─┴─┴─┘Y       └       ┘
[INFO] [stdout] 14 | | /// ```                      V W X
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{28ff}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{250c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{252c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{252c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{252c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2510}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{250c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{252c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{252c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{252c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2510}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{250c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2510}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{25ae}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{25ae}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{25ae}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{25ae}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{25ae}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{25ae}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{253c}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2524}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2502}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{25ae}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{25ae}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2514}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2534}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2534}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2534}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2518}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2514}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2534}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2534}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2534}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2518}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2514}
[INFO] [stdout]    = note: error from rustc: unknown start of token: \u{2518}
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "66bb114daef84e9412726ce8b547c357673564959eb0bbfa88bc004f803bd681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66bb114daef84e9412726ce8b547c357673564959eb0bbfa88bc004f803bd681", kill_on_drop: false }`
[INFO] [stdout] 66bb114daef84e9412726ce8b547c357673564959eb0bbfa88bc004f803bd681
