[INFO] fetching crate fern_macros 0.1.8...
[INFO] documenting fern_macros-0.1.8 against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples
[INFO] extracting crate fern_macros 0.1.8 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate fern_macros 0.1.8 on toolchain 6ee483316d2e4581572121d60a955affb2032eb3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fern_macros 0.1.8
[INFO] finished tweaking crates.io crate fern_macros 0.1.8
[INFO] tweaked toml for crates.io crate fern_macros 0.1.8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 622c1a6e5ebc53061653c7707c2d9e0c3956cc4940cafa5298f6a37757cedd95
[INFO] running `Command { std: "docker" "start" "-a" "622c1a6e5ebc53061653c7707c2d9e0c3956cc4940cafa5298f6a37757cedd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "622c1a6e5ebc53061653c7707c2d9e0c3956cc4940cafa5298f6a37757cedd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "622c1a6e5ebc53061653c7707c2d9e0c3956cc4940cafa5298f6a37757cedd95", kill_on_drop: false }`
[INFO] [stdout] 622c1a6e5ebc53061653c7707c2d9e0c3956cc4940cafa5298f6a37757cedd95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] 6855827dad91518b8b62f82095de5d5bc35d849175dd27c3f6242824913992b8
[INFO] running `Command { std: "docker" "start" "-a" "6855827dad91518b8b62f82095de5d5bc35d849175dd27c3f6242824913992b8", kill_on_drop: false }`
[INFO] [stderr]     Checking fern v0.1.12
[INFO] [stderr] warning: failed to check lib in package `fern` as a prerequisite for scraping examples from: lib
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/fern-0.1.12/Cargo.toml
[INFO] [stderr] warning: `fern` (lib) generated 1 warning
[INFO] [stderr]     Scraping fern_macros v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting fern_macros v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unclosed HTML tag `error`
[INFO] [stdout]   --> src/lib.rs:82:63
[INFO] [stdout]    |
[INFO] [stdout] 82 | /// The above statement would log "Failed to write to stream: <error text>" if writing to stdout
[INFO] [stdout]    |                                                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::invalid_html_tags)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `error`
[INFO] [stdout]    --> src/lib.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 | /// <error text>", then return from the current function prematurely.
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "6855827dad91518b8b62f82095de5d5bc35d849175dd27c3f6242824913992b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6855827dad91518b8b62f82095de5d5bc35d849175dd27c3f6242824913992b8", kill_on_drop: false }`
[INFO] [stdout] 6855827dad91518b8b62f82095de5d5bc35d849175dd27c3f6242824913992b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] 576567365b3dafccce50fd1540f4eb22401a7836ab7516c60ab78a4c2468d570
[INFO] running `Command { std: "docker" "start" "-a" "576567365b3dafccce50fd1540f4eb22401a7836ab7516c60ab78a4c2468d570", kill_on_drop: false }`
[INFO] [stderr]     Checking fern v0.1.12
[INFO] [stderr] warning: failed to check lib in package `fern` as a prerequisite for scraping examples from: lib
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/fern-0.1.12/Cargo.toml
[INFO] [stderr] warning: `fern` (lib) generated 1 warning
[INFO] [stderr]     Scraping fern_macros v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting fern_macros v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unclosed HTML tag `error`
[INFO] [stdout]   --> src/lib.rs:82:63
[INFO] [stdout]    |
[INFO] [stdout] 82 | /// The above statement would log "Failed to write to stream: <error text>" if writing to stdout
[INFO] [stdout]    |                                                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::invalid_html_tags)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unclosed HTML tag `error`
[INFO] [stdout]    --> src/lib.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 | /// <error text>", then return from the current function prematurely.
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "576567365b3dafccce50fd1540f4eb22401a7836ab7516c60ab78a4c2468d570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "576567365b3dafccce50fd1540f4eb22401a7836ab7516c60ab78a4c2468d570", kill_on_drop: false }`
[INFO] [stdout] 576567365b3dafccce50fd1540f4eb22401a7836ab7516c60ab78a4c2468d570