[INFO] fetching crate fractal-gen 0.1.5...
[INFO] documenting fractal-gen-0.1.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate fractal-gen 0.1.5 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate fractal-gen 0.1.5 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 fractal-gen 0.1.5
[INFO] finished tweaking crates.io crate fractal-gen 0.1.5
[INFO] tweaked toml for crates.io crate fractal-gen 0.1.5 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] crate crates.io crate fractal-gen 0.1.5 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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] 1038e0c229ee4750323f54eb57a30e53f8b4fb0252a1425198b2d9e1e511193e
[INFO] running `Command { std: "docker" "start" "-a" "1038e0c229ee4750323f54eb57a30e53f8b4fb0252a1425198b2d9e1e511193e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1038e0c229ee4750323f54eb57a30e53f8b4fb0252a1425198b2d9e1e511193e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1038e0c229ee4750323f54eb57a30e53f8b4fb0252a1425198b2d9e1e511193e", kill_on_drop: false }`
[INFO] [stdout] 1038e0c229ee4750323f54eb57a30e53f8b4fb0252a1425198b2d9e1e511193e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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] [stdout] 62c3dec3d9a6f08788d2e3693b211ff6ddbc43e47e8783062f71a66d103bb887
[INFO] running `Command { std: "docker" "start" "-a" "62c3dec3d9a6f08788d2e3693b211ff6ddbc43e47e8783062f71a66d103bb887", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting fractal-gen v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/circle.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |  * For more details: https://www.geeksforgeeks.org/bresenhams-circle-drawing-algorithm/
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://www.geeksforgeeks.org/bresenhams-circle-drawing-algorithm/>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/line.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |  * Checkout at: https://en.wikipedia.org/wiki/Digital_differential_analyzer_(graphics_algorithm)
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://en.wikipedia.org/wiki/Digital_differential_analyzer>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/koch_curve.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |  * Checkout at: http://computergraphicsinc.blogspot.com/2014/12/c-program-to-draw-koch-curve-using.html
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<http://computergraphicsinc.blogspot.com/2014/12/c-program-to-draw-koch-curve-using.html>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/fractal/sierpinski_triangle.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |  * Checkout at: https://www.geeksforgeeks.org/sierpinski-triangle-using-graphics/
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://www.geeksforgeeks.org/sierpinski-triangle-using-graphics/>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/mandelbrot.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |  * Checkout at: http://warp.povusers.org/Mandelbrot/
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<http://warp.povusers.org/Mandelbrot/>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/tree.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |  * Checkout at: https://natureofcode.com/book/chapter-8-fractals/ 
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://natureofcode.com/book/chapter-8-fractals/>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/barnsley_fern.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |  * Checkout at: https://rosettacode.org/wiki/Barnsley_fern
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://rosettacode.org/wiki/Barnsley_fern>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/julia.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |  * Checkout at: https://rosettacode.org/wiki/Julia_set
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://rosettacode.org/wiki/Julia_set>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "62c3dec3d9a6f08788d2e3693b211ff6ddbc43e47e8783062f71a66d103bb887", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62c3dec3d9a6f08788d2e3693b211ff6ddbc43e47e8783062f71a66d103bb887", kill_on_drop: false }`
[INFO] [stdout] 62c3dec3d9a6f08788d2e3693b211ff6ddbc43e47e8783062f71a66d103bb887
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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] [stdout] ef8c495dcd85e2fa101c2eff8f5e74587bc29cbd5ea85acc65eab9f27e4cccfe
[INFO] running `Command { std: "docker" "start" "-a" "ef8c495dcd85e2fa101c2eff8f5e74587bc29cbd5ea85acc65eab9f27e4cccfe", kill_on_drop: false }`
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/circle.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |  * For more details: https://www.geeksforgeeks.org/bresenhams-circle-drawing-algorithm/
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://www.geeksforgeeks.org/bresenhams-circle-drawing-algorithm/>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting fractal-gen v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/line.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |  * Checkout at: https://en.wikipedia.org/wiki/Digital_differential_analyzer_(graphics_algorithm)
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://en.wikipedia.org/wiki/Digital_differential_analyzer>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/koch_curve.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |  * Checkout at: http://computergraphicsinc.blogspot.com/2014/12/c-program-to-draw-koch-curve-using.html
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<http://computergraphicsinc.blogspot.com/2014/12/c-program-to-draw-koch-curve-using.html>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/fractal/sierpinski_triangle.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |  * Checkout at: https://www.geeksforgeeks.org/sierpinski-triangle-using-graphics/
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://www.geeksforgeeks.org/sierpinski-triangle-using-graphics/>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/mandelbrot.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |  * Checkout at: http://warp.povusers.org/Mandelbrot/
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<http://warp.povusers.org/Mandelbrot/>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/tree.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |  * Checkout at: https://natureofcode.com/book/chapter-8-fractals/ 
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://natureofcode.com/book/chapter-8-fractals/>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/barnsley_fern.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |  * Checkout at: https://rosettacode.org/wiki/Barnsley_fern
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://rosettacode.org/wiki/Barnsley_fern>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/fractal/julia.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |  * Checkout at: https://rosettacode.org/wiki/Julia_set
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://rosettacode.org/wiki/Julia_set>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "ef8c495dcd85e2fa101c2eff8f5e74587bc29cbd5ea85acc65eab9f27e4cccfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef8c495dcd85e2fa101c2eff8f5e74587bc29cbd5ea85acc65eab9f27e4cccfe", kill_on_drop: false }`
[INFO] [stdout] ef8c495dcd85e2fa101c2eff8f5e74587bc29cbd5ea85acc65eab9f27e4cccfe