[INFO] cloning repository https://github.com/FWW321/bookforge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FWW321/bookforge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFWW321%2Fbookforge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFWW321%2Fbookforge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 161af5cd8e9d67dabb22e80cf485fd5f3226fb9f
[INFO] building FWW321/bookforge against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFWW321%2Fbookforge" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FWW321/bookforge
[INFO] finished tweaking git repo https://github.com/FWW321/bookforge
[INFO] tweaked toml for git repo https://github.com/FWW321/bookforge written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FWW321/bookforge on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FWW321/bookforge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Updating crates.io index
[INFO] [stderr] Downloading crates ...
[INFO] [stderr] Downloaded dtoa v1.0.10
[INFO] [stderr] Downloaded liblzma v0.4.1
[INFO] [stderr] Downloaded zip v4.0.0
[INFO] [stderr] Downloaded ego-tree v0.10.0
[INFO] [stderr] Downloaded clap_derive v4.5.40
[INFO] [stderr] Downloaded markup5ever v0.14.1
[INFO] [stderr] Downloaded clap v4.5.40
[INFO] [stderr] Downloaded html5ever v0.29.1
[INFO] [stderr] Downloaded selectors v0.26.0
[INFO] [stderr] Downloaded cssparser v0.34.0
[INFO] [stderr] Downloaded string_cache_codegen v0.5.4
[INFO] [stderr] Downloaded clap_builder v4.5.40
[INFO] [stderr] Downloaded getopts v0.2.23
[INFO] [stderr] Downloaded string_cache v0.8.9
[INFO] [stderr] Downloaded match_token v0.1.0
[INFO] [stderr] Downloaded servo_arc v0.4.1
[INFO] [stderr] Downloaded scraper v0.23.1
[INFO] [stderr] Downloaded syn v2.0.102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea42c75d300aa3bb7f4ed2c9d79236194b15c1cbdf799018d21da05e68c5d3ff
[INFO] running `Command { std: "docker" "start" "-a" "ea42c75d300aa3bb7f4ed2c9d79236194b15c1cbdf799018d21da05e68c5d3ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea42c75d300aa3bb7f4ed2c9d79236194b15c1cbdf799018d21da05e68c5d3ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea42c75d300aa3bb7f4ed2c9d79236194b15c1cbdf799018d21da05e68c5d3ff", kill_on_drop: false }`
[INFO] [stdout] ea42c75d300aa3bb7f4ed2c9d79236194b15c1cbdf799018d21da05e68c5d3ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7b0b9d8860c34a053dde5ec69f55392214c7d2e37442114055a0e1b4b027f0e
[INFO] running `Command { std: "docker" "start" "-a" "c7b0b9d8860c34a053dde5ec69f55392214c7d2e37442114055a0e1b4b027f0e", kill_on_drop: false }`
[INFO] [stderr] Compiling siphasher v1.0.1
[INFO] [stderr] Compiling cfg-if v1.0.1
[INFO] [stderr] Compiling typenum v1.18.0
[INFO] [stderr] Compiling smallvec v1.15.1
[INFO] [stderr] Compiling lock_api v0.4.13
[INFO] [stderr] Compiling mac v0.1.1
[INFO] [stderr] Compiling precomputed-hash v0.1.1
[INFO] [stderr] Compiling dtoa v1.0.10
[INFO] [stderr] Compiling zstd-safe v7.2.4
[INFO] [stderr] Compiling syn v2.0.102
[INFO] [stderr] Compiling jobserver v0.1.33
[INFO] [stderr] Compiling anstyle-parse v0.2.7
[INFO] [stderr] Compiling stable_deref_trait v1.2.0
[INFO] [stderr] Compiling hashbrown v0.15.4
[INFO] [stderr] Compiling anstyle v1.0.11
[INFO] [stderr] Compiling colorchoice v1.0.4
[INFO] [stderr] Compiling crc32fast v1.4.2
[INFO] [stderr] Compiling cpufeatures v0.2.17
[INFO] [stderr] Compiling futf v0.1.5
[INFO] [stderr] Compiling dtoa-short v0.3.5
[INFO] [stderr] Compiling anstyle-query v1.1.3
[INFO] [stderr] Compiling getrandom v0.3.3
[INFO] [stderr] Compiling zlib-rs v0.5.1
[INFO] [stderr] Compiling tendril v0.4.3
[INFO] [stderr] Compiling anstream v0.6.19
[INFO] [stderr] Compiling servo_arc v0.4.1
[INFO] [stderr] Compiling serde_yml v0.0.12
[INFO] [stderr] Compiling phf_shared v0.11.3
[INFO] [stderr] Compiling parking_lot_core v0.9.11
[INFO] [stderr] Compiling simd-adler32 v0.3.7
[INFO] [stderr] Compiling cc v1.2.26
[INFO] [stderr] Compiling bumpalo v3.18.1
[INFO] [stderr] Compiling bitflags v2.9.1
[INFO] [stderr] Compiling clap_lex v0.7.5
[INFO] [stderr] Compiling unicode-width v0.2.1
[INFO] [stderr] Compiling thiserror v2.0.12
[INFO] [stderr] Compiling phf_generator v0.11.3
[INFO] [stderr] Compiling time v0.3.41
[INFO] [stderr] Compiling libyml v0.0.5
[INFO] [stderr] Compiling ego-tree v0.10.0
[INFO] [stderr] Compiling parking_lot v0.12.4
[INFO] [stderr] Compiling phf_codegen v0.11.3
[INFO] [stderr] Compiling string_cache_codegen v0.5.4
[INFO] [stderr] Compiling clap_builder v4.5.40
[INFO] [stderr] Compiling selectors v0.26.0
[INFO] [stderr] Compiling indexmap v2.9.0
[INFO] [stderr] Compiling getopts v0.2.23
[INFO] [stderr] Compiling zopfli v0.8.2
[INFO] [stderr] Compiling constant_time_eq v0.3.1
[INFO] [stderr] Compiling deflate64 v0.1.9
[INFO] [stderr] Compiling quick-xml v0.37.5
[INFO] [stderr] Compiling markup5ever v0.14.1
[INFO] [stderr] Compiling generic-array v0.14.7
[INFO] [stderr] Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr] Compiling bzip2-sys v0.1.13+1.0.8
[INFO] [stderr] Compiling liblzma-sys v0.4.4
[INFO] [stderr] Compiling crypto-common v0.1.6
[INFO] [stderr] Compiling block-buffer v0.10.4
[INFO] [stderr] Compiling inout v0.1.4
[INFO] [stderr] Compiling cipher v0.4.4
[INFO] [stderr] Compiling digest v0.10.7
[INFO] [stderr] Compiling hmac v0.12.1
[INFO] [stderr] Compiling sha1 v0.10.6
[INFO] [stderr] Compiling pbkdf2 v0.12.2
[INFO] [stderr] Compiling aes v0.8.4
[INFO] [stderr] Compiling bzip2 v0.5.2
[INFO] [stderr] Compiling liblzma v0.4.1
[INFO] [stderr] Compiling libz-rs-sys v0.5.1
[INFO] [stderr] Compiling flate2 v1.1.2
[INFO] [stderr] Compiling phf_macros v0.11.3
[INFO] [stderr] Compiling serde_derive v1.0.219
[INFO] [stderr] Compiling cssparser-macros v0.6.1
[INFO] [stderr] Compiling match_token v0.1.0
[INFO] [stderr] Compiling derive_more v0.99.20
[INFO] [stderr] Compiling zeroize_derive v1.4.2
[INFO] [stderr] Compiling thiserror-impl v2.0.12
[INFO] [stderr] Compiling clap_derive v4.5.40
[INFO] [stderr] Compiling zstd v0.13.3
[INFO] [stderr] Compiling zeroize v1.8.1
[INFO] [stderr] Compiling phf v0.11.3
[INFO] [stderr] Compiling zip v4.0.0
[INFO] [stderr] Compiling cssparser v0.34.0
[INFO] [stderr] Compiling clap v4.5.40
[INFO] [stderr] Compiling serde v1.0.219
[INFO] [stderr] Compiling string_cache v0.8.9
[INFO] [stderr] Compiling html5ever v0.29.1
[INFO] [stderr] Compiling scraper v0.23.1
[INFO] [stderr] Compiling bookforge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] --> src/epub/reader.rs:259:21
[INFO] [stdout] |
[INFO] [stdout] 259 | pub fn toc_tree(&self) -> Result