[INFO] fetching crate arbiter-engine 0.4.0...
[INFO] checking arbiter-engine-0.4.0 against try#d83b14207998f47b18a34e930157ac0d7c18b16e for pr-149137
[INFO] extracting crate arbiter-engine 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate arbiter-engine 0.4.0
[INFO] finished tweaking crates.io crate arbiter-engine 0.4.0
[INFO] tweaked toml for crates.io crate arbiter-engine 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate arbiter-engine 0.4.0 on toolchain d83b14207998f47b18a34e930157ac0d7c18b16e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 584 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding solang-parser v0.3.3 (available: v0.3.5)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding toml v0.8.23 (available: v0.9.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf9af3279ea88fa5f68448569e7eba5650f1d2b454c882b77ab1f5a3d9ce7496
[INFO] running `Command { std: "docker" "start" "-a" "bf9af3279ea88fa5f68448569e7eba5650f1d2b454c882b77ab1f5a3d9ce7496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf9af3279ea88fa5f68448569e7eba5650f1d2b454c882b77ab1f5a3d9ce7496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf9af3279ea88fa5f68448569e7eba5650f1d2b454c882b77ab1f5a3d9ce7496", kill_on_drop: false }`
[INFO] [stdout] bf9af3279ea88fa5f68448569e7eba5650f1d2b454c882b77ab1f5a3d9ce7496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+d83b14207998f47b18a34e930157ac0d7c18b16e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 251ce9c35e6b5de291bd08c422ab6e52066f465588d3546ea9c58730cb373e5a
[INFO] running `Command { std: "docker" "start" "-a" "251ce9c35e6b5de291bd08c422ab6e52066f465588d3546ea9c58730cb373e5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling toml_parser v1.0.4
[INFO] [stderr]    Compiling toml_datetime v0.7.3
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling cc v1.2.47
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling parity-scale-codec v3.7.5
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.3
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling toml_edit v0.23.7
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking bytes v1.11.0
[INFO] [stderr]     Checking der v0.7.10
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling const-oid v0.9.6
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking const_format v0.2.35
[INFO] [stderr]     Checking tiny-keccak v2.0.2
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]    Compiling auto_impl v1.3.0
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking byte-slice-cast v1.2.3
[INFO] [stderr]     Checking crypto-common v0.1.7
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]    Compiling camino v1.2.1
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking derive_more v1.0.0
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking sec1 v0.7.3
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.7.5
[INFO] [stderr]    Compiling scale-info-derive v2.11.6
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking signal-hook-registry v1.4.7
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling num_enum_derive v0.7.5
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]     Checking impl-serde v0.4.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]     Checking const-hex v1.17.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[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/d83b14207998f47b18a34e930157ac0d7c18b16e/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-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=7eb43d6169aef7f5 -C extra-filename=-74bb329f97fdd0ac --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-adaa2a655fe000c3.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ec53b880e3cb018a.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9533002ac35f5809.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" "251ce9c35e6b5de291bd08c422ab6e52066f465588d3546ea9c58730cb373e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "251ce9c35e6b5de291bd08c422ab6e52066f465588d3546ea9c58730cb373e5a", kill_on_drop: false }`
[INFO] [stdout] 251ce9c35e6b5de291bd08c422ab6e52066f465588d3546ea9c58730cb373e5a