[INFO] fetching crate mdbook-veryl 0.17.2...
[INFO] testing mdbook-veryl-0.17.2 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate mdbook-veryl 0.17.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mdbook-veryl 0.17.2
[INFO] finished tweaking crates.io crate mdbook-veryl 0.17.2
[INFO] tweaked toml for crates.io crate mdbook-veryl 0.17.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook-veryl 0.17.2 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mdbook-veryl 0.17.2 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c5a492f9afbc322ed7a0e29ce1346bfa2d51090d095e104cb74fac7e28dff69
[INFO] running `Command { std: "docker" "start" "-a" "1c5a492f9afbc322ed7a0e29ce1346bfa2d51090d095e104cb74fac7e28dff69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c5a492f9afbc322ed7a0e29ce1346bfa2d51090d095e104cb74fac7e28dff69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c5a492f9afbc322ed7a0e29ce1346bfa2d51090d095e104cb74fac7e28dff69", kill_on_drop: false }`
[INFO] [stdout] 1c5a492f9afbc322ed7a0e29ce1346bfa2d51090d095e104cb74fac7e28dff69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72a0675d84a5c86f9548d653dcb838c751ac12cde08a0409f55bef6b5cd00e91
[INFO] running `Command { std: "docker" "start" "-a" "72a0675d84a5c86f9548d653dcb838c751ac12cde08a0409f55bef6b5cd00e91", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling libc v0.2.179
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.6
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling zmij v1.0.10
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde_json v1.0.148
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling core2 v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rle-decode-fast v1.0.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling owo-colors v4.2.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling dary_heap v0.3.8
[INFO] [stderr]    Compiling is_ci v1.2.0
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling unicode-linebreak v0.1.5
[INFO] [stderr]    Compiling camino v1.2.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling supports-color v3.0.2
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling libflate_lz77 v2.2.0
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling textwrap v0.16.2
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v2.0.113
[INFO] [stderr]    Compiling libflate v2.2.1
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling supports-unicode v3.0.0
[INFO] [stderr]    Compiling constant_time_eq v0.3.1
[INFO] [stderr]    Compiling cc v1.2.51
[INFO] [stderr]    Compiling supports-hyperlinks v3.2.0
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling backtrace-ext v0.2.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling syntree v0.18.0
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling xml_writer v0.4.0
[INFO] [stderr]    Compiling petgraph v0.8.3
[INFO] [stderr]    Compiling function_name-proc-macro v0.3.0
[INFO] [stderr]    Compiling parol_runtime v4.2.0
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling web_atoms v0.1.3
[INFO] [stderr]    Compiling function_name v0.3.0
[INFO] [stderr]    Compiling codespan-reporting v0.13.1
[INFO] [stderr]    Compiling parol-macros v1.0.0
[INFO] [stderr]    Compiling terminal_size v0.4.3
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling fs4 v0.13.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling directories v6.0.0
[INFO] [stderr]    Compiling bimap v0.6.3
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling toml_datetime v0.7.5+spec-1.1.0
[INFO] [stderr]    Compiling serde_spanned v1.0.4
[INFO] [stderr]    Compiling sha1_smol v1.0.1
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling blake3 v1.8.2
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling toml_writer v1.0.6+spec-1.1.0
[INFO] [stderr]    Compiling veryl-metadata v0.17.2
[INFO] [stderr]    Compiling env_home v0.1.0
[INFO] [stderr]    Compiling dtoa v1.0.11
[INFO] [stderr]    Compiling clap_builder v4.5.54
[INFO] [stderr]    Compiling which v8.0.0
[INFO] [stderr]    Compiling uuid v1.19.0
[INFO] [stderr]    Compiling inotify v0.11.0
[INFO] [stderr]    Compiling spdx v0.13.3
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling pulldown-cmark v0.10.3
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling notify-types v2.0.0
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling num-modular v0.6.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling tempfile v3.24.0
[INFO] [stderr]    Compiling notify v8.2.0
[INFO] [stderr]    Compiling axum-core v0.5.6
[INFO] [stderr]    Compiling serde_path_to_error v0.1.20
[INFO] [stderr]    Compiling jiff v0.2.17
[INFO] [stderr]    Compiling merkle_hash v3.8.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling matchit v0.8.4
[INFO] [stderr]    Compiling pulldown-cmark v0.13.0
[INFO] [stderr]    Compiling toml_parser v1.0.6+spec-1.1.0
[INFO] [stderr]    Compiling num-order v1.2.0
[INFO] [stderr]    Compiling env_filter v0.1.4
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.10.1
[INFO] [stderr]    Compiling strnum_bitwidth v0.1.2
[INFO] [stderr]    Compiling globset v0.4.18
[INFO] [stderr]    Compiling http-range-header v0.4.2
[INFO] [stderr]    Compiling toml v0.9.10+spec-1.1.0
[INFO] [stderr]    Compiling veryl-std v0.17.2
[INFO] [stderr]    Compiling rust-embed-utils v8.9.0
[INFO] [stderr]    Compiling daggy v0.9.0
[INFO] [stderr]    Compiling ignore v0.4.25
[INFO] [stderr]    Compiling opener v0.8.3
[INFO] [stderr]    Compiling notify-debouncer-mini v0.6.0
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling getopts v0.2.24
[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 scnr2_generate v0.3.3
[INFO] [stderr]    Compiling pest_generator v2.8.5
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.11.0
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling line-col v0.2.1
[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-2026-01-20-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.113/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=54ef9f8f1d0da088 -C extra-filename=-2772f2445c4c01b9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a8a9e2f0e92c22ce.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6418fe52af7ce354.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" "72a0675d84a5c86f9548d653dcb838c751ac12cde08a0409f55bef6b5cd00e91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a0675d84a5c86f9548d653dcb838c751ac12cde08a0409f55bef6b5cd00e91", kill_on_drop: false }`
[INFO] [stdout] 72a0675d84a5c86f9548d653dcb838c751ac12cde08a0409f55bef6b5cd00e91
