[INFO] fetching crate mame-parser 0.7.2...
[INFO] testing mame-parser-0.7.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mame-parser 0.7.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mame-parser 0.7.2
[INFO] finished tweaking crates.io crate mame-parser 0.7.2
[INFO] tweaked toml for crates.io crate mame-parser 0.7.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mame-parser 0.7.2 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mame-parser 0.7.2 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a92d612b5227609c0302c0f9830e0d44df90069e8a739afa6c276c186127f43d
[INFO] running `Command { std: "docker" "start" "-a" "a92d612b5227609c0302c0f9830e0d44df90069e8a739afa6c276c186127f43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a92d612b5227609c0302c0f9830e0d44df90069e8a739afa6c276c186127f43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a92d612b5227609c0302c0f9830e0d44df90069e8a739afa6c276c186127f43d", kill_on_drop: false }`
[INFO] [stdout] a92d612b5227609c0302c0f9830e0d44df90069e8a739afa6c276c186127f43d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39db992717af4cd0e597a04f4af4ebf4ba82fedd35b9eb9aac3c949377f6aeb1
[INFO] running `Command { std: "docker" "start" "-a" "39db992717af4cd0e597a04f4af4ebf4ba82fedd35b9eb9aac3c949377f6aeb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.1.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling bytes v1.7.1
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling indexmap v2.4.0
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling winnow v0.6.18
[INFO] [stderr]    Compiling dtoa v1.0.9
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]    Compiling tokio v1.39.3
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling libsqlite3-sys v0.28.0
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.7.0
[INFO] [stderr]    Compiling cpufeatures v0.2.13
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling common-path v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling flate2 v1.0.33
[INFO] [stderr]    Compiling nt-time v0.8.1
[INFO] [stderr]    Compiling bit-set v0.6.0
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling crc v3.2.1
[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/beta-2025-10-28-x86_64-unknown-linux-gnu/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"' --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=becec7596fdb9c6d -C extra-filename=-de78bad316122ab9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-06f382f79c1fcafb.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-7bc88632c2fe2c55.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-772f13ecc3fc189a.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "39db992717af4cd0e597a04f4af4ebf4ba82fedd35b9eb9aac3c949377f6aeb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39db992717af4cd0e597a04f4af4ebf4ba82fedd35b9eb9aac3c949377f6aeb1", kill_on_drop: false }`
[INFO] [stdout] 39db992717af4cd0e597a04f4af4ebf4ba82fedd35b9eb9aac3c949377f6aeb1