[INFO] fetching crate polkadot-staking-miner 1.6.0...
[INFO] checking polkadot-staking-miner-1.6.0 against try#52ae2445414b2a196b318d85c2819995c6e5f1aa for pr-133397
[INFO] extracting crate polkadot-staking-miner 1.6.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate polkadot-staking-miner 1.6.0 on toolchain 52ae2445414b2a196b318d85c2819995c6e5f1aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52ae2445414b2a196b318d85c2819995c6e5f1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polkadot-staking-miner 1.6.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate polkadot-staking-miner 1.6.0
[INFO] tweaked toml for crates.io crate polkadot-staking-miner 1.6.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate polkadot-staking-miner 1.6.0 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" "+52ae2445414b2a196b318d85c2819995c6e5f1aa" "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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+52ae2445414b2a196b318d85c2819995c6e5f1aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2787b7456163198a98724474c99fb076cee1f5bddf8f9976eca9f1944b1caf03
[INFO] running `Command { std: "docker" "start" "-a" "2787b7456163198a98724474c99fb076cee1f5bddf8f9976eca9f1944b1caf03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2787b7456163198a98724474c99fb076cee1f5bddf8f9976eca9f1944b1caf03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2787b7456163198a98724474c99fb076cee1f5bddf8f9976eca9f1944b1caf03", kill_on_drop: false }`
[INFO] [stdout] 2787b7456163198a98724474c99fb076cee1f5bddf8f9976eca9f1944b1caf03
[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=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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+52ae2445414b2a196b318d85c2819995c6e5f1aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc90461bef2e10b6055f6a89b246b330e4e3ea4428ea84900a2240152911ff4d
[INFO] running `Command { std: "docker" "start" "-a" "fc90461bef2e10b6055f6a89b246b330e4e3ea4428ea84900a2240152911ff4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling allocator-api2 v0.2.18
[INFO] [stderr]    Compiling winnow v0.6.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling unicode-xid v0.2.5
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking byte-slice-cast v1.2.2
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking cpufeatures v0.2.14
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling cc v1.1.18
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling prettyplease v0.2.22
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]     Checking tinyvec v1.8.0
[INFO] [stderr]    Compiling fs-err v2.11.0
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]     Checking arrayref v0.3.8
[INFO] [stderr]    Compiling expander v2.2.1
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling libsecp256k1-core v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling ref-cast v1.0.23
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling file-guard v0.2.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]    Compiling bitcoin-internals v0.2.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking constant_time_eq v0.3.1
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking sp-std v14.0.0
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking hash-db v0.16.0
[INFO] [stderr]     Checking blake2b_simd v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking environmental v1.1.4
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking password-hash v0.5.0
[INFO] [stderr]     Checking hex-conservative v0.1.2
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking num-format v0.4.4
[INFO] [stderr]     Checking bitcoin_hashes v0.13.0
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking dyn-clone v1.0.17
[INFO] [stderr]    Compiling libsecp256k1 v0.7.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking time v0.3.36
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]     Checking hash256-std-hasher v0.15.2
[INFO] [stderr]     Checking bs58 v0.5.1
[INFO] [stderr]    Compiling secp256k1-sys v0.9.2
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling common-path v1.0.0
[INFO] [stderr]     Checking gimli v0.31.0
[INFO] [stderr]     Checking array-bytes v6.2.3
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking object v0.36.4
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]     Checking memory-db v0.32.0
[INFO] [stderr]     Checking trie-root v0.18.0
[INFO] [stderr]     Checking trie-db v0.29.1
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]    Compiling sp-io v38.0.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]     Checking simple-mermaid v0.1.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]     Checking regex v1.11.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking rustls-pki-types v1.8.0
[INFO] [stderr]     Checking uint v0.10.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.95
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling rustls v0.23.13
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]     Checking parity-wasm v0.45.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]    Compiling include_dir_macros v0.7.4
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking rustls-pemfile v2.1.3
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking rustls-native-certs v0.7.3
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling include_dir v0.7.4
[INFO] [stderr]     Checking addr2line v0.24.1
[INFO] [stderr]    Compiling cfg-expr v0.15.8
[INFO] [stderr]     Checking rustc-hash v2.0.0
[INFO] [stderr]     Checking anstyle v1.0.8
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.95
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking tt-call v1.0.9
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.95
[INFO] [stderr]    Compiling proc-macro-warning v1.0.2
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking anstyle-parse v0.2.5
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]     Checking secp256k1 v0.28.2
[INFO] [stderr]     Checking yap v0.11.0
[INFO] [stderr]     Checking base58 v0.2.0
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]     Checking colorchoice v1.0.2
[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/52ae2445414b2a196b318d85c2819995c6e5f1aa/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-2.0.77/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)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=27f7c4dda86aca26 -C extra-filename=-27f7c4dda86aca26 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-999306cb2722a44d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ae5f1bdbeeae8687.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-7b828347d8713ecd.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" "fc90461bef2e10b6055f6a89b246b330e4e3ea4428ea84900a2240152911ff4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc90461bef2e10b6055f6a89b246b330e4e3ea4428ea84900a2240152911ff4d", kill_on_drop: false }`
[INFO] [stdout] fc90461bef2e10b6055f6a89b246b330e4e3ea4428ea84900a2240152911ff4d