[INFO] cloning repository https://github.com/google/mdbook-i18n-helpers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/google/mdbook-i18n-helpers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoogle%2Fmdbook-i18n-helpers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoogle%2Fmdbook-i18n-helpers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33be28e5924574884d6f8fe2f0b935a421038954
[INFO] checking google/mdbook-i18n-helpers against master#733108b6d4acaa93fe26ae281ea305aacd6aac4e for pr-148967
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgoogle%2Fmdbook-i18n-helpers" "/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/google/mdbook-i18n-helpers
[INFO] finished tweaking git repo https://github.com/google/mdbook-i18n-helpers
[INFO] tweaked toml for git repo https://github.com/google/mdbook-i18n-helpers written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/google/mdbook-i18n-helpers on toolchain 733108b6d4acaa93fe26ae281ea305aacd6aac4e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/google/mdbook-i18n-helpers 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" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mdbook-core v0.5.0
[INFO] [stderr]   Downloaded mdbook-renderer v0.5.0
[INFO] [stderr]   Downloaded pulldown-cmark-escape v0.11.0
[INFO] [stderr]   Downloaded mdbook-markdown v0.5.0
[INFO] [stderr]   Downloaded mdbook-summary v0.5.0
[INFO] [stderr]   Downloaded match_token v0.35.0
[INFO] [stderr]   Downloaded mdbook-preprocessor v0.5.0
[INFO] [stderr]   Downloaded mdbook-driver v0.5.0
[INFO] [stderr]   Downloaded num-order v1.2.0
[INFO] [stderr]   Downloaded markup5ever v0.35.0
[INFO] [stderr]   Downloaded dateparser v0.2.1
[INFO] [stderr]   Downloaded web_atoms v0.1.3
[INFO] [stderr]   Downloaded fancy-regex v0.16.2
[INFO] [stderr]   Downloaded num-modular v0.6.1
[INFO] [stderr]   Downloaded tera v1.20.1
[INFO] [stderr]   Downloaded handlebars v6.3.2
[INFO] [stderr]   Downloaded html5ever v0.35.0
[INFO] [stderr]   Downloaded font-awesome-as-a-crate v0.3.0
[INFO] [stderr]   Downloaded mdbook-html v0.5.0
[INFO] [stderr]   Downloaded syntect v5.3.0
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1deaf20b95b8cac38c9d459267db0a065f170ea27304490a980df651e519f61
[INFO] running `Command { std: "docker" "start" "-a" "a1deaf20b95b8cac38c9d459267db0a065f170ea27304490a980df651e519f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1deaf20b95b8cac38c9d459267db0a065f170ea27304490a980df651e519f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1deaf20b95b8cac38c9d459267db0a065f170ea27304490a980df651e519f61", kill_on_drop: false }`
[INFO] [stdout] a1deaf20b95b8cac38c9d459267db0a065f170ea27304490a980df651e519f61
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4eb0b95e2c9f055a6596d97087574bf88c0c708df0c1c9b55ff563dcbc9c83b
[INFO] running `Command { std: "docker" "start" "-a" "d4eb0b95e2c9f055a6596d97087574bf88c0c708df0c1c9b55ff563dcbc9c83b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking winnow v0.7.13
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking toml_writer v1.0.4
[INFO] [stderr]    Compiling pulldown-cmark v0.13.0
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking serde_spanned v1.0.3
[INFO] [stderr]     Checking toml_datetime v0.7.3
[INFO] [stderr]     Checking pulldown-cmark-escape v0.11.0
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking linereader v0.4.0
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking miniz_oxide v0.7.3
[INFO] [stderr]     Checking polib v0.2.0
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking semver v1.0.27
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking num-modular v0.6.1
[INFO] [stderr]    Compiling rustix v1.0.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking linux-raw-sys v0.9.3
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking font-awesome-as-a-crate v0.3.0
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling jobserver v0.1.31
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking ego-tree v0.10.0
[INFO] [stderr]     Checking num-order v1.2.0
[INFO] [stderr]     Checking deunicode v1.6.0
[INFO] [stderr]     Checking shlex v1.3.0
[INFO] [stderr]    Compiling cc v1.0.98
[INFO] [stderr]     Checking topological-sort v0.2.2
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]     Checking slug v0.1.5
[INFO] [stderr]     Checking pulldown-cmark-to-cmark v21.0.0
[INFO] [stderr]     Checking humansize v2.1.3
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]     Checking anstyle-query v1.0.3
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking getrandom v0.3.1
[INFO] [stderr]    Compiling web_atoms v0.1.3
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]     Checking clap_builder v4.5.51
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking toml_parser v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking toml v0.9.8
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.10
[INFO] [stderr]     Checking tempfile v3.23.0
[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/733108b6d4acaa93fe26ae281ea305aacd6aac4e/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.106/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit-mut"' --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=9e1c88ef8130618c -C extra-filename=-4c57ab7bd3cabaa7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-666987ba9fda8575.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-33334bc88c62b16a.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-f2de522ba645d884.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d4eb0b95e2c9f055a6596d97087574bf88c0c708df0c1c9b55ff563dcbc9c83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4eb0b95e2c9f055a6596d97087574bf88c0c708df0c1c9b55ff563dcbc9c83b", kill_on_drop: false }`
[INFO] [stdout] d4eb0b95e2c9f055a6596d97087574bf88c0c708df0c1c9b55ff563dcbc9c83b