[INFO] fetching crate linera-sdk 0.15.3...
[INFO] documenting linera-sdk-0.15.3 against beta-2025-09-21 for beta-rustdoc-1.91-2
[INFO] extracting crate linera-sdk 0.15.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate linera-sdk 0.15.3
[INFO] finished tweaking crates.io crate linera-sdk 0.15.3
[INFO] tweaked toml for crates.io crate linera-sdk 0.15.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate linera-sdk 0.15.3 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate linera-sdk 0.15.3 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86d9fddbca5d7078817b8fe0e586b8ba7fb8eee5f94b6d07ae32a199462313f5
[INFO] running `Command { std: "docker" "start" "-a" "86d9fddbca5d7078817b8fe0e586b8ba7fb8eee5f94b6d07ae32a199462313f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86d9fddbca5d7078817b8fe0e586b8ba7fb8eee5f94b6d07ae32a199462313f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86d9fddbca5d7078817b8fe0e586b8ba7fb8eee5f94b6d07ae32a199462313f5", kill_on_drop: false }`
[INFO] [stdout] 86d9fddbca5d7078817b8fe0e586b8ba7fb8eee5f94b6d07ae32a199462313f5
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d5d3fffb208a69b722497bb2a6d5a7a095fcd77b96cfd3d290c5476189b10e6
[INFO] running `Command { std: "docker" "start" "-a" "8d5d3fffb208a69b722497bb2a6d5a7a095fcd77b96cfd3d290c5476189b10e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking indexmap v2.10.0
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]    Compiling rend v0.4.2
[INFO] [stderr]    Compiling cc v1.2.32
[INFO] [stderr]     Checking zerovec v0.11.4
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling cranelift-isle v0.91.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ahash v0.7.8
[INFO] [stderr]    Compiling rkyv v0.7.45
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]    Compiling pest v2.8.1
[INFO] [stderr]    Compiling enumset_derive v0.12.0
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking semver v1.0.26
[INFO] [stderr]    Compiling corosensei v0.1.4
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.91.1
[INFO] [stderr]     Checking der v0.7.10
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.91.1
[INFO] [stderr]     Checking indexmap v1.9.3
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking potential_utf v0.1.2
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking serde_bytes v0.11.17
[INFO] [stderr]     Checking enumset v1.1.7
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]     Checking xxhash-rust v0.8.15
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking more-asserts v0.2.2
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking cranelift-entity v0.91.1
[INFO] [stderr]     Checking region v3.0.2
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking dashmap v6.1.0
[INFO] [stderr]     Checking http v1.3.1
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking memmap2 v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking slice-group-by v0.3.1
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]     Checking serdect v0.2.0
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]    Compiling pest_meta v2.8.1
[INFO] [stderr]     Checking shared-buffer v0.1.4
[INFO] [stderr]     Checking cranelift-bforest v0.91.1
[INFO] [stderr]     Checking cranelift-egraph v0.91.1
[INFO] [stderr]     Checking regalloc2 v0.5.1
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking wasmparser v0.121.2
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]    Compiling frunk_core v0.4.4
[INFO] [stderr]     Checking self_cell v1.2.0
[INFO] [stderr]     Checking bumpalo v3.19.0
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]    Compiling pest_generator v2.8.1
[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-2025-09-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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="quote"' --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", "quote", "test", "visit", "visit-mut"))' -C metadata=b7afff0a361a5d9b -C extra-filename=-ef36f6dc08071acc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5e748a29bbb5128e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b8c2036f549873ed.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-958b805d9ab3f4fe.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8d5d3fffb208a69b722497bb2a6d5a7a095fcd77b96cfd3d290c5476189b10e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d5d3fffb208a69b722497bb2a6d5a7a095fcd77b96cfd3d290c5476189b10e6", kill_on_drop: false }`
[INFO] [stdout] 8d5d3fffb208a69b722497bb2a6d5a7a095fcd77b96cfd3d290c5476189b10e6