[INFO] fetching crate mesc_cli 0.3.0...
[INFO] testing mesc_cli-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mesc_cli 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mesc_cli 0.3.0
[INFO] finished tweaking crates.io crate mesc_cli 0.3.0
[INFO] tweaked toml for crates.io crate mesc_cli 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mesc_cli 0.3.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mesc_cli 0.3.0 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" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39ed73ad588996619670ac92db826598549672fab0f21623db9efd859707ba59
[INFO] running `Command { std: "docker" "start" "-a" "39ed73ad588996619670ac92db826598549672fab0f21623db9efd859707ba59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39ed73ad588996619670ac92db826598549672fab0f21623db9efd859707ba59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39ed73ad588996619670ac92db826598549672fab0f21623db9efd859707ba59", kill_on_drop: false }`
[INFO] [stdout] 39ed73ad588996619670ac92db826598549672fab0f21623db9efd859707ba59
[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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f96f62f2fdddfa81271f8e64e223223f982420577b7cc88cebc25d7b2472043a
[INFO] running `Command { std: "docker" "start" "-a" "f96f62f2fdddfa81271f8e64e223223f982420577b7cc88cebc25d7b2472043a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling allocator-api2 v0.2.18
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling cc v1.1.18
[INFO] [stderr]    Compiling array-init-cursor v0.2.0
[INFO] [stderr]    Compiling target-features v0.1.6
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling simdutf8 v0.1.4
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling planus v0.3.1
[INFO] [stderr]    Compiling polars-utils v0.35.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]    Compiling lexical-util v0.8.5
[INFO] [stderr]    Compiling foreign_vec v0.1.0
[INFO] [stderr]    Compiling atoi_simd v0.15.6
[INFO] [stderr]    Compiling streaming-iterator v0.1.9
[INFO] [stderr]    Compiling fast-float v0.2.0
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling ethnum v1.5.0
[INFO] [stderr]    Compiling polars-core v0.35.4
[INFO] [stderr]    Compiling ref-cast v1.0.23
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]    Compiling crossterm v0.27.0
[INFO] [stderr]    Compiling polars-ops v0.35.4
[INFO] [stderr]    Compiling xxhash-rust v0.8.12
[INFO] [stderr]    Compiling snap v1.1.1
[INFO] [stderr]    Compiling brotli-decompressor v2.5.1
[INFO] [stderr]    Compiling streaming-decompression v0.1.2
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling parquet-format-safe v0.2.4
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling lexical-write-integer v0.8.5
[INFO] [stderr]    Compiling lexical-parse-integer v0.8.6
[INFO] [stderr]    Compiling lexical-parse-float v0.8.5
[INFO] [stderr]    Compiling lexical-write-float v0.8.5
[INFO] [stderr]    Compiling argminmax v0.6.2
[INFO] [stderr]    Compiling zstd-sys v2.0.13+zstd.1.5.6
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]    Compiling lz4-sys v1.10.0
[INFO] [stderr]    Compiling lexical-core v0.8.5
[INFO] [stderr]    Compiling brotli v3.5.0
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling libz-sys v1.1.20
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling now v0.1.3
[INFO] [stderr]    Compiling terminal_size v0.3.0
[INFO] [stderr]    Compiling onig_sys v69.8.1
[INFO] [stderr]    Compiling sys-info v0.9.1
[INFO] [stderr]    Compiling memmap2 v0.7.1
[INFO] [stderr]    Compiling polars-plan v0.35.4
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling clap_builder v4.5.17
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling libgit2-sys v0.16.2+1.7.2
[INFO] [stderr]    Compiling polars-lazy v0.35.4
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling quick-xml v0.32.0
[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-2025-09-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --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", "test", "visit", "visit-mut"))' -C metadata=039c810b5afc70bd -C extra-filename=-42c0cbf6f7a02059 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-31d473c435bae482.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6c508e29bb318806.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-22b7b0cc8d73ac3c.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" "f96f62f2fdddfa81271f8e64e223223f982420577b7cc88cebc25d7b2472043a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f96f62f2fdddfa81271f8e64e223223f982420577b7cc88cebc25d7b2472043a", kill_on_drop: false }`
[INFO] [stdout] f96f62f2fdddfa81271f8e64e223223f982420577b7cc88cebc25d7b2472043a