[INFO] fetching crate gear-core-backend 1.7.1...
[INFO] checking gear-core-backend-1.7.1 against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] extracting crate gear-core-backend 1.7.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate gear-core-backend 1.7.1 on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gear-core-backend 1.7.1
[INFO] finished tweaking crates.io crate gear-core-backend 1.7.1
[INFO] tweaked toml for crates.io crate gear-core-backend 1.7.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate gear-core-backend 1.7.1 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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f481ddcb8e83b6d91321aa109f9515ae4d69740bb2342c6fa0177a06c78de72
[INFO] running `Command { std: "docker" "start" "-a" "1f481ddcb8e83b6d91321aa109f9515ae4d69740bb2342c6fa0177a06c78de72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f481ddcb8e83b6d91321aa109f9515ae4d69740bb2342c6fa0177a06c78de72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f481ddcb8e83b6d91321aa109f9515ae4d69740bb2342c6fa0177a06c78de72", kill_on_drop: false }`
[INFO] [stdout] 1f481ddcb8e83b6d91321aa109f9515ae4d69740bb2342c6fa0177a06c78de72
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8619f30194eda67959142db62fc4b364499e2b37f91ce46623ed7cc8421683a4
[INFO] running `Command { std: "docker" "start" "-a" "8619f30194eda67959142db62fc4b364499e2b37f91ce46623ed7cc8421683a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking const-oid v0.9.5
[INFO] [stderr]    Compiling hashbrown v0.15.0
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling cc v1.1.30
[INFO] [stderr]     Checking zerocopy v0.7.32
[INFO] [stderr]     Checking byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling thiserror v1.0.62
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]     Checking winnow v0.6.6
[INFO] [stderr]    Compiling schemars v0.8.21
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling bytecheck v0.6.11
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling aho-corasick v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling rend v0.4.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]     Checking memmap2 v0.6.2
[INFO] [stderr]     Checking filetime v0.2.22
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]    Compiling rkyv v0.7.42
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking num-bigint v0.4.4
[INFO] [stderr]    Compiling corosensei v0.1.4
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]    Compiling ref-cast v1.0.23
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking xattr v1.3.1
[INFO] [stderr]     Checking tempfile v3.13.0
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking tar v0.4.41
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]     Checking parity-wasm v0.45.0
[INFO] [stderr]     Checking xxhash-rust v0.8.11
[INFO] [stderr]     Checking more-asserts v0.2.2
[INFO] [stderr]     Checking sp-std v9.0.0
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking region v3.0.2
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking constant_time_eq v0.3.1
[INFO] [stderr]    Compiling rustix v0.36.15
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]     Checking wasmi_core v0.2.1
[INFO] [stderr]    Compiling wasmtime-runtime v8.0.1
[INFO] [stderr]     Checking environmental v1.1.4
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]     Checking self_cell v1.0.4
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling libsecp256k1-core v0.3.0
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]     Checking wasmi-validation v0.5.0
[INFO] [stderr]    Compiling blake3 v1.5.5
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]     Checking wasmtime-jit-debug v8.0.1
[INFO] [stderr]     Checking wasmtime-asm-macros v8.0.1
[INFO] [stderr]     Checking indexmap-nostd v0.4.0
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]     Checking wasmparser-nostd v0.100.2
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking wasmi v0.13.2
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking wasmtime-jit-icache-coherence v8.0.1
[INFO] [stderr]    Compiling expander v2.0.0
[INFO] [stderr]     Checking memfd v0.6.3
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling bitcoin-internals v0.2.0
[INFO] [stderr]     Checking sp-std v14.0.0
[INFO] [stderr]    Compiling wasmtime v8.0.1
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking bs58 v0.5.1
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking time v0.3.36
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]    Compiling darling_core v0.14.4
[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/44f3504e96c944ae54fc72b5f5008f53f7eda001/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="fold"' --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=dbf21ce7d57c9cb1 -C extra-filename=-3b446e3b52a6df51 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-452f6f8bd41a34ff.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-a8a82bce987c57dc.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-35fb19b3987835f7.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" "8619f30194eda67959142db62fc4b364499e2b37f91ce46623ed7cc8421683a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8619f30194eda67959142db62fc4b364499e2b37f91ce46623ed7cc8421683a4", kill_on_drop: false }`
[INFO] [stdout] 8619f30194eda67959142db62fc4b364499e2b37f91ce46623ed7cc8421683a4
