[INFO] fetching crate lurk 0.3.1...
[INFO] testing lurk-0.3.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate lurk 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate lurk 0.3.1
[INFO] finished tweaking crates.io crate lurk 0.3.1
[INFO] tweaked toml for crates.io crate lurk 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lurk 0.3.1 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 crates.io crate lurk 0.3.1 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] 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] c14fcb807b096b6544642d2f2c310b00d10cf24676def9f9b0f16d3d985f57e8
[INFO] running `Command { std: "docker" "start" "-a" "c14fcb807b096b6544642d2f2c310b00d10cf24676def9f9b0f16d3d985f57e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c14fcb807b096b6544642d2f2c310b00d10cf24676def9f9b0f16d3d985f57e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c14fcb807b096b6544642d2f2c310b00d10cf24676def9f9b0f16d3d985f57e8", kill_on_drop: false }`
[INFO] [stdout] c14fcb807b096b6544642d2f2c310b00d10cf24676def9f9b0f16d3d985f57e8
[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] 7444294d3445675e7e1edc9d19de27030b0eb2f7ddb2cce4d65c45daedd39014
[INFO] running `Command { std: "docker" "start" "-a" "7444294d3445675e7e1edc9d19de27030b0eb2f7ddb2cce4d65c45daedd39014", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.17
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling ahash v0.7.7
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling constant_time_eq v0.3.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling ec-gpu v0.2.0
[INFO] [stderr]    Compiling bytecheck v0.6.11
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]    Compiling target-lexicon v0.12.12
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling rend v0.4.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cranelift-isle v0.91.1
[INFO] [stderr]    Compiling simdutf8 v0.1.4
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.91.1
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling rkyv v0.7.43
[INFO] [stderr]    Compiling unicode-bidi v0.3.14
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.91.1
[INFO] [stderr]    Compiling openssl-sys v0.9.97
[INFO] [stderr]    Compiling blst v0.3.11
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling addchain v0.2.0
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling ff v0.13.0
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling object v0.32.1
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling corosensei v0.1.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling cranelift-entity v0.91.1
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.9
[INFO] [stderr]    Compiling more-asserts v0.2.2
[INFO] [stderr]    Compiling slice-group-by v0.3.1
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling openssl v0.10.61
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling tempfile v3.8.1
[INFO] [stderr]    Compiling blake2b_simd v1.0.2
[INFO] [stderr]    Compiling regalloc2 v0.5.1
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling cranelift-egraph v0.91.1
[INFO] [stderr]    Compiling cranelift-bforest v0.91.1
[INFO] [stderr]    Compiling pairing v0.23.0
[INFO] [stderr]    Compiling sppark v0.1.5
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling region v3.0.0
[INFO] [stderr]    Compiling memmap2 v0.6.2
[INFO] [stderr]    Compiling semolina v0.1.4
[INFO] [stderr]    Compiling blake2s_simd v1.0.2
[INFO] [stderr]    Compiling http v0.2.11
[INFO] [stderr]    Compiling cranelift-codegen v0.91.1
[INFO] [stderr]    Compiling futures-io v0.3.29
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling darling_core v0.20.3
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling futures-sink v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling bumpalo v3.14.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling deranged v0.3.10
[INFO] [stderr]    Compiling shared-buffer 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-2.0.41/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"' --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", "quote", "test", "visit", "visit-mut"))' -C metadata=785a0da93b726164 -C extra-filename=-0efd378dcbc1f541 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-0f769e8f930eef1e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-3dee51dad7101440.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-772f13ecc3fc189a.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" "7444294d3445675e7e1edc9d19de27030b0eb2f7ddb2cce4d65c45daedd39014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7444294d3445675e7e1edc9d19de27030b0eb2f7ddb2cce4d65c45daedd39014", kill_on_drop: false }`
[INFO] [stdout] 7444294d3445675e7e1edc9d19de27030b0eb2f7ddb2cce4d65c45daedd39014
