[INFO] fetching crate risc0-circuit-bigint 1.1.4...
[INFO] testing risc0-circuit-bigint-1.1.4 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate risc0-circuit-bigint 1.1.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate risc0-circuit-bigint 1.1.4
[INFO] finished tweaking crates.io crate risc0-circuit-bigint 1.1.4
[INFO] tweaked toml for crates.io crate risc0-circuit-bigint 1.1.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate risc0-circuit-bigint 1.1.4 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 risc0-circuit-bigint 1.1.4 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2b448fe00fd39a7fe11b0d6a66afcddbbb7b505941e0465a23bee23677d8564b
[INFO] running `Command { std: "docker" "start" "-a" "2b448fe00fd39a7fe11b0d6a66afcddbbb7b505941e0465a23bee23677d8564b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b448fe00fd39a7fe11b0d6a66afcddbbb7b505941e0465a23bee23677d8564b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b448fe00fd39a7fe11b0d6a66afcddbbb7b505941e0465a23bee23677d8564b", kill_on_drop: false }`
[INFO] [stdout] 2b448fe00fd39a7fe11b0d6a66afcddbbb7b505941e0465a23bee23677d8564b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4a81964c17f4df20d2d2b59bea0a28a92e3549ebe9584b8c5325d0cf558e37fb
[INFO] running `Command { std: "docker" "start" "-a" "4a81964c17f4df20d2d2b59bea0a28a92e3549ebe9584b8c5325d0cf558e37fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling subtle v2.6.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling rustls-pki-types v1.7.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling bytes v1.6.1
[INFO] [stderr]    Compiling rustls v0.23.10
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling toml_datetime v0.6.7
[INFO] [stderr]    Compiling jobserver v0.1.31
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling mio v1.0.1
[INFO] [stderr]    Compiling cc v1.1.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling directories v5.0.1
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling http-body v1.0.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tokio v1.41.1
[INFO] [stderr]    Compiling puffin v0.19.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling webpki-roots v0.26.3
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling borsh v1.5.2
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling which v6.0.2
[INFO] [stderr]    Compiling tempfile v3.12.0
[INFO] [stderr]    Compiling ark-std v0.4.0
[INFO] [stderr]    Compiling addchain v0.2.0
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling zerocopy v0.7.34
[INFO] [stderr]    Compiling rustls-pemfile v2.1.2
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling nvtx v1.3.0
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling risc0-build-kernel v1.2.0
[INFO] [stderr]    Compiling serde_json v1.0.124
[INFO] [stderr]    Compiling sync_wrapper v1.0.1
[INFO] [stderr]    Compiling risc0-zkp v1.1.4
[INFO] [stderr]    Compiling ipnet v2.9.0
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling hex-literal v0.4.1
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling miniz_oxide v0.7.4
[INFO] [stderr]    Compiling risc0-sys v1.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling flate2 v1.0.31
[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=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=290b6e686072ffed -C extra-filename=-6a319a00f8e05d8b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-36eb0e0d451afc6e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6453cbc1a4c4521f.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-4531f72b7268c58a.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] [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-2.0.87/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"' --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=6a4e684bcbde2851 -C extra-filename=-e885ffeb2f6236f3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-36eb0e0d451afc6e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6453cbc1a4c4521f.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-4531f72b7268c58a.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "4a81964c17f4df20d2d2b59bea0a28a92e3549ebe9584b8c5325d0cf558e37fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a81964c17f4df20d2d2b59bea0a28a92e3549ebe9584b8c5325d0cf558e37fb", kill_on_drop: false }`
[INFO] [stdout] 4a81964c17f4df20d2d2b59bea0a28a92e3549ebe9584b8c5325d0cf558e37fb
