[INFO] fetching crate frontwork 0.1.4...
[INFO] testing frontwork-0.1.4 against 1.81.0 for beta-1.82-1
[INFO] extracting crate frontwork 0.1.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate frontwork 0.1.4 on toolchain 1.81.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.81.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate frontwork 0.1.4
[INFO] finished tweaking crates.io crate frontwork 0.1.4
[INFO] tweaked toml for crates.io crate frontwork 0.1.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate frontwork 0.1.4 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" "+1.81.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zip v2.1.3
[INFO] [stderr]   Downloaded include_dir_macros v0.7.2
[INFO] [stderr]   Downloaded zopfli v0.8.1
[INFO] [stderr]   Downloaded zip-extensions v0.8.0
[INFO] [stderr]   Downloaded shell v0.3.2
[INFO] [stderr]   Downloaded clap v3.2.20
[INFO] [stderr]   Downloaded rsass v0.28.8
[INFO] [stderr]   Downloaded rusync v0.7.2
[INFO] [stderr]   Downloaded lockfree-object-pool v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+1.81.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17641c8a72ae619116ffc6643087ed16d71cfba65ab942871ebf0896aafd532e
[INFO] running `Command { std: "docker" "start" "-a" "17641c8a72ae619116ffc6643087ed16d71cfba65ab942871ebf0896aafd532e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17641c8a72ae619116ffc6643087ed16d71cfba65ab942871ebf0896aafd532e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17641c8a72ae619116ffc6643087ed16d71cfba65ab942871ebf0896aafd532e", kill_on_drop: false }`
[INFO] [stdout] 17641c8a72ae619116ffc6643087ed16d71cfba65ab942871ebf0896aafd532e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+1.81.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2985a919e84e2f0611b3b0b4c787a9ed8d5dc83002cd93f5b12f599d2f819836
[INFO] running `Command { std: "docker" "start" "-a" "2985a919e84e2f0611b3b0b4c787a9ed8d5dc83002cd93f5b12f599d2f819836", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling bytes v1.6.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling slab v0.4.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling zstd-safe v7.1.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling crc v3.2.1
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling miniz_oxide v0.7.3
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling lockfree-object-pool v0.1.5
[INFO] [stderr]    Compiling jobserver v0.1.31
[INFO] [stderr]    Compiling syn v2.0.64
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling http-body v1.0.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling zip v2.1.3
[INFO] [stderr]    Compiling lzma-rs v0.3.0
[INFO] [stderr]    Compiling zopfli v0.8.1
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling http-body-util v0.1.1
[INFO] [stderr]    Compiling pbkdf2 v0.12.2
[INFO] [stderr]    Compiling openssl-sys v0.9.73
[INFO] [stderr]    Compiling zstd-sys v2.0.10+zstd.1.5.6
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]    Compiling flate2 v1.0.30
[INFO] [stderr]    Compiling aes v0.8.4
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling object v0.28.4
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling constant_time_eq v0.3.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling deflate64 v0.1.8
[INFO] [stderr]    Compiling rustls-pki-types v1.7.0
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling rustls-pemfile v2.1.2
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling include_dir_macros v0.7.2
[INFO] [stderr]    Compiling filetime v0.2.17
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling encoding_rs v0.8.34
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling arc-swap v1.7.1
[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/1.81.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-2.0.64/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"' --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=5098ef2144a6ad3b -C extra-filename=-5098ef2144a6ad3b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9022ff050f7f1d27.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8eec5d2d8b420f38.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6b9a33feb0e5c36d.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" "2985a919e84e2f0611b3b0b4c787a9ed8d5dc83002cd93f5b12f599d2f819836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2985a919e84e2f0611b3b0b4c787a9ed8d5dc83002cd93f5b12f599d2f819836", kill_on_drop: false }`
[INFO] [stdout] 2985a919e84e2f0611b3b0b4c787a9ed8d5dc83002cd93f5b12f599d2f819836