[INFO] cloning repository https://github.com/CoralPink/mdbook-tailor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CoralPink/mdbook-tailor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCoralPink%2Fmdbook-tailor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCoralPink%2Fmdbook-tailor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85edda81175150376af529514395dcfc8e1f3744
[INFO] testing CoralPink/mdbook-tailor against beta-2025-10-28 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCoralPink%2Fmdbook-tailor" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CoralPink/mdbook-tailor
[INFO] finished tweaking git repo https://github.com/CoralPink/mdbook-tailor
[INFO] tweaked toml for git repo https://github.com/CoralPink/mdbook-tailor written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CoralPink/mdbook-tailor on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CoralPink/mdbook-tailor 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" "+beta-2025-10-28" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 963cdebb71d3c67ae08b65a088a3999890ecdcfd76ec13a480062835f9571877
[INFO] running `Command { std: "docker" "start" "-a" "963cdebb71d3c67ae08b65a088a3999890ecdcfd76ec13a480062835f9571877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "963cdebb71d3c67ae08b65a088a3999890ecdcfd76ec13a480062835f9571877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "963cdebb71d3c67ae08b65a088a3999890ecdcfd76ec13a480062835f9571877", kill_on_drop: false }`
[INFO] [stdout] 963cdebb71d3c67ae08b65a088a3999890ecdcfd76ec13a480062835f9571877
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f97efa3693c0efb33d371b3c059f8314347bb03268b0cf79c3f630448153209
[INFO] running `Command { std: "docker" "start" "-a" "5f97efa3693c0efb33d371b3c059f8314347bb03268b0cf79c3f630448153209", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling writeable v0.6.2
[INFO] [stderr]    Compiling litemap v0.8.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.1.1
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling icu_properties_data v2.1.1
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling anstyle-query v1.1.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling pest v2.8.3
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling built v0.7.7
[INFO] [stderr]    Compiling web_atoms v0.1.3
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling mio v1.1.0
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling rav1e v0.7.1
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling nom v8.0.0
[INFO] [stderr]    Compiling data-encoding v2.9.0
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling dtoa v1.0.10
[INFO] [stderr]    Compiling pest_meta v2.8.3
[INFO] [stderr]    Compiling clap_lex v0.7.6
[INFO] [stderr]    Compiling inotify v0.11.0
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]    Compiling imgref v1.12.0
[INFO] [stderr]    Compiling noop_proc_macro v0.3.0
[INFO] [stderr]    Compiling num-modular v0.6.1
[INFO] [stderr]    Compiling weezl v0.1.10
[INFO] [stderr]    Compiling bitstream-io v2.6.0
[INFO] [stderr]    Compiling pulldown-cmark v0.10.3
[INFO] [stderr]    Compiling notify-types v2.0.0
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling terminal_size v0.4.3
[INFO] [stderr]    Compiling clap_builder v4.5.51
[INFO] [stderr]    Compiling zune-core v0.4.12
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling num-order v1.2.0
[INFO] [stderr]    Compiling notify v8.2.0
[INFO] [stderr]    Compiling loop9 v0.1.5
[INFO] [stderr]    Compiling zune-jpeg v0.4.21
[INFO] [stderr]    Compiling axum-core v0.5.5
[INFO] [stderr]    Compiling pxfm v0.1.25
[INFO] [stderr]    Compiling serde_path_to_error v0.1.20
[INFO] [stderr]    Compiling avif-serialize v0.8.6
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling zune-inflate v0.2.54
[INFO] [stderr]    Compiling lebe v0.5.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling rgb v0.8.52
[INFO] [stderr]    Compiling maybe-rayon v0.1.1
[INFO] [stderr]    Compiling jiff v0.2.15
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling matchit v0.8.4
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling byteorder-lite v0.1.0
[INFO] [stderr]    Compiling http-range-header v0.4.2
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.10.1
[INFO] [stderr]    Compiling bit_field v0.10.3
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling image-webp v0.2.4
[INFO] [stderr]    Compiling gif v0.13.3
[INFO] [stderr]    Compiling png v0.18.0
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling notify-debouncer-mini v0.6.0
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling pathdiff v0.2.3
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling topological-sort v0.2.2
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling pest_generator v2.8.3
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling env_filter v0.1.4
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2025-10-28-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.108/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=237060418a0210c6 -C extra-filename=-22efb739259690e3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-26141f501b988814.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5dc791de4998fa6e.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-3a00dd35274e822e.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5f97efa3693c0efb33d371b3c059f8314347bb03268b0cf79c3f630448153209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f97efa3693c0efb33d371b3c059f8314347bb03268b0cf79c3f630448153209", kill_on_drop: false }`
[INFO] [stdout] 5f97efa3693c0efb33d371b3c059f8314347bb03268b0cf79c3f630448153209