[INFO] fetching crate fluvio-smartengine 0.50.1...
[INFO] testing fluvio-smartengine-0.50.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate fluvio-smartengine 0.50.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate fluvio-smartengine 0.50.1
[INFO] finished tweaking crates.io crate fluvio-smartengine 0.50.1
[INFO] tweaked toml for crates.io crate fluvio-smartengine 0.50.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fluvio-smartengine 0.50.1 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 fluvio-smartengine 0.50.1 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0f4b566653ddb32e39dcd62396a9c4408d198c5a399c8b1bec7321a38990383d
[INFO] running `Command { std: "docker" "start" "-a" "0f4b566653ddb32e39dcd62396a9c4408d198c5a399c8b1bec7321a38990383d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f4b566653ddb32e39dcd62396a9c4408d198c5a399c8b1bec7321a38990383d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f4b566653ddb32e39dcd62396a9c4408d198c5a399c8b1bec7321a38990383d", kill_on_drop: false }`
[INFO] [stdout] 0f4b566653ddb32e39dcd62396a9c4408d198c5a399c8b1bec7321a38990383d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c34a7ead129efb716f419fc351192652f637845930027ce5832268b3e435683
[INFO] running `Command { std: "docker" "start" "-a" "9c34a7ead129efb716f419fc351192652f637845930027ce5832268b3e435683", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling hashbrown v0.15.3
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling cranelift-srcgen v0.121.1
[INFO] [stderr]    Compiling cranelift-isle v0.121.1
[INFO] [stderr]    Compiling cranelift-bitset v0.121.1
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling bumpalo v3.17.0
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling cranelift-assembler-x64-meta v0.121.1
[INFO] [stderr]    Compiling io-lifetimes v2.0.4
[INFO] [stderr]    Compiling winnow v0.7.10
[INFO] [stderr]    Compiling toml_write v0.1.1
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.121.1
[INFO] [stderr]    Compiling leb128fmt v0.1.0
[INFO] [stderr]    Compiling wasmtime-math v34.0.1
[INFO] [stderr]    Compiling wasmparser v0.233.0
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling io-extras v0.18.4
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling arbitrary v1.4.1
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling cobs v0.2.3
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling ambient-authority v0.0.2
[INFO] [stderr]    Compiling wasm-encoder v0.235.0
[INFO] [stderr]    Compiling cpp_demangle v0.4.4
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling wasm-encoder v0.233.0
[INFO] [stderr]    Compiling cranelift-control v0.121.1
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling cap-primitives v3.4.4
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling cranelift-assembler-x64 v0.121.1
[INFO] [stderr]    Compiling maybe-owned v0.3.4
[INFO] [stderr]    Compiling wasmtime-component-util v34.0.1
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling cc v1.2.27
[INFO] [stderr]    Compiling wast v35.0.2
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling futures-lite v2.6.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling unicode-width v0.2.0
[INFO] [stderr]    Compiling cap-std v3.4.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling wasmtime-component-macro v34.0.1
[INFO] [stderr]    Compiling wasmtime-cache v34.0.1
[INFO] [stderr]    Compiling dyn-clone v1.0.19
[INFO] [stderr]    Compiling uuid v1.17.0
[INFO] [stderr]    Compiling crc32c v0.6.8
[INFO] [stderr]    Compiling wast v235.0.0
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling debugid v0.8.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling directories-next v2.0.0
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling wasmtime-asm-macros v34.0.1
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling wiggle-macro v34.0.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[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=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.101/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=05c2e4cdd4290ec3 -C extra-filename=-35fdafb785876f3c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-854696e6ecb228db.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-2fa5dbbdcf3ea8ea.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-958b805d9ab3f4fe.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" "9c34a7ead129efb716f419fc351192652f637845930027ce5832268b3e435683", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c34a7ead129efb716f419fc351192652f637845930027ce5832268b3e435683", kill_on_drop: false }`
[INFO] [stdout] 9c34a7ead129efb716f419fc351192652f637845930027ce5832268b3e435683
