[INFO] fetching crate twig 0.1.0...
[INFO] documenting twig-0.1.0 against master#ef324565d071c6d7e2477a195648549e33d6a465 for pr-121659-bump-pulldown-cmark
[INFO] extracting crate twig 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate twig 0.1.0 on toolchain ef324565d071c6d7e2477a195648549e33d6a465
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twig 0.1.0
[INFO] finished tweaking crates.io crate twig 0.1.0
[INFO] tweaked toml for crates.io crate twig 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded little v0.3.0
[INFO] [stderr]   Downloaded difference v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1714db6ef93ca96fd2c1b7b0815e591462f7a7ead0cf5065b7111ff8d5648b34
[INFO] running `Command { std: "docker" "start" "-a" "1714db6ef93ca96fd2c1b7b0815e591462f7a7ead0cf5065b7111ff8d5648b34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1714db6ef93ca96fd2c1b7b0815e591462f7a7ead0cf5065b7111ff8d5648b34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1714db6ef93ca96fd2c1b7b0815e591462f7a7ead0cf5065b7111ff8d5648b34", kill_on_drop: false }`
[INFO] [stdout] 1714db6ef93ca96fd2c1b7b0815e591462f7a7ead0cf5065b7111ff8d5648b34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b885a9db335080bb305b70566d5d4b1708e0e4346b45067cf1d63b2f53d8f32c
[INFO] running `Command { std: "docker" "start" "-a" "b885a9db335080bb305b70566d5d4b1708e0e4346b45067cf1d63b2f53d8f32c", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking little v0.3.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking sha1 v0.1.1
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]  Documenting twig v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/twig/index.html
[INFO] running `Command { std: "docker" "inspect" "b885a9db335080bb305b70566d5d4b1708e0e4346b45067cf1d63b2f53d8f32c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b885a9db335080bb305b70566d5d4b1708e0e4346b45067cf1d63b2f53d8f32c", kill_on_drop: false }`
[INFO] [stdout] b885a9db335080bb305b70566d5d4b1708e0e4346b45067cf1d63b2f53d8f32c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 286ca8e34dbc2a8264c0ff006f1d5b40756dfa51cfc26f7789374324a2227828
[INFO] running `Command { std: "docker" "start" "-a" "286ca8e34dbc2a8264c0ff006f1d5b40756dfa51cfc26f7789374324a2227828", kill_on_drop: false }`
[INFO] [stderr]  Documenting twig v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/twig/index.html
[INFO] running `Command { std: "docker" "inspect" "286ca8e34dbc2a8264c0ff006f1d5b40756dfa51cfc26f7789374324a2227828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "286ca8e34dbc2a8264c0ff006f1d5b40756dfa51cfc26f7789374324a2227828", kill_on_drop: false }`
[INFO] [stdout] 286ca8e34dbc2a8264c0ff006f1d5b40756dfa51cfc26f7789374324a2227828
[INFO] documenting twig-0.1.0 against try#223112bf1ca31911a6475910c77b36bfa127d5f8 for pr-121659-bump-pulldown-cmark
[INFO] extracting crate twig 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate twig 0.1.0 on toolchain 223112bf1ca31911a6475910c77b36bfa127d5f8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twig 0.1.0
[INFO] finished tweaking crates.io crate twig 0.1.0
[INFO] tweaked toml for crates.io crate twig 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac4f3cf8aa2fcd6064b310f90e8027f7802f574b4d4384288e2fc115cc3378bc
[INFO] running `Command { std: "docker" "start" "-a" "ac4f3cf8aa2fcd6064b310f90e8027f7802f574b4d4384288e2fc115cc3378bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac4f3cf8aa2fcd6064b310f90e8027f7802f574b4d4384288e2fc115cc3378bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4f3cf8aa2fcd6064b310f90e8027f7802f574b4d4384288e2fc115cc3378bc", kill_on_drop: false }`
[INFO] [stdout] ac4f3cf8aa2fcd6064b310f90e8027f7802f574b4d4384288e2fc115cc3378bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+223112bf1ca31911a6475910c77b36bfa127d5f8" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e663f157e6522fc546c7fa87bcbfd06761773a84a499c2b66ba0715291415ac
[INFO] running `Command { std: "docker" "start" "-a" "0e663f157e6522fc546c7fa87bcbfd06761773a84a499c2b66ba0715291415ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking little v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking sha1 v0.1.1
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]  Documenting twig v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unportable markdown
[INFO] [stdout]    --> src/tokens/lexer/matchers.rs:166:18
[INFO] [stdout]     |
[INFO] [stdout] 166 |     /// This is /[^#"\\]*(?:(?:\\.|#(?!\{))[^#"\\]*)*/As regular expression written
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: old parser sees FootnoteReference(Borrowed("#\"\\\\")), new sees nothing
[INFO] [stdout]     = note: `#[deny(rustdoc::unportable_markdown)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `twig`
[INFO] running `Command { std: "docker" "inspect" "0e663f157e6522fc546c7fa87bcbfd06761773a84a499c2b66ba0715291415ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e663f157e6522fc546c7fa87bcbfd06761773a84a499c2b66ba0715291415ac", kill_on_drop: false }`
[INFO] [stdout] 0e663f157e6522fc546c7fa87bcbfd06761773a84a499c2b66ba0715291415ac