[INFO] fetching crate ftag 0.8.3...
[INFO] testing ftag-0.8.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ftag 0.8.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate ftag 0.8.3
[INFO] finished tweaking crates.io crate ftag 0.8.3
[INFO] tweaked toml for crates.io crate ftag 0.8.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ftag 0.8.3 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 ftag 0.8.3 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 55058db8b0f935b752bb25bbf0130fcd8c760d25a4e325e0046af83f656fe571
[INFO] running `Command { std: "docker" "start" "-a" "55058db8b0f935b752bb25bbf0130fcd8c760d25a4e325e0046af83f656fe571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55058db8b0f935b752bb25bbf0130fcd8c760d25a4e325e0046af83f656fe571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55058db8b0f935b752bb25bbf0130fcd8c760d25a4e325e0046af83f656fe571", kill_on_drop: false }`
[INFO] [stdout] 55058db8b0f935b752bb25bbf0130fcd8c760d25a4e325e0046af83f656fe571
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5fa1fba8069a5813c8f9adf9dc307adc44763536ecda32b7b849e72257d12604
[INFO] running `Command { std: "docker" "start" "-a" "5fa1fba8069a5813c8f9adf9dc307adc44763536ecda32b7b849e72257d12604", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling find-msvc-tools v0.1.0
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling libloading v0.8.8
[INFO] [stderr]    Compiling wayland-sys v0.31.7
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling cc v1.2.35
[INFO] [stderr]    Compiling dlib v0.5.2
[INFO] [stderr]    Compiling quick-xml v0.37.5
[INFO] [stderr]    Compiling wayland-client v0.31.11
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling async-lock v3.4.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling indexmap v2.11.0
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling ttf-parser v0.25.1
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling strict-num v0.1.1
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.10
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling async-executor v1.13.3
[INFO] [stderr]    Compiling async-broadcast v0.7.2
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling cursor-icon v1.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling xcursor v0.3.10
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling accesskit v0.19.0
[INFO] [stderr]    Compiling wayland-scanner v0.31.7
[INFO] [stderr]    Compiling wayland-backend v0.3.11
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling x11rb-protocol v0.13.2
[INFO] [stderr]    Compiling winit v0.30.12
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling weezl v0.1.10
[INFO] [stderr]    Compiling profiling v1.0.17
[INFO] [stderr]    Compiling epaint_default_fonts v0.32.1
[INFO] [stderr]    Compiling zune-jpeg v0.4.20
[INFO] [stderr]    Compiling glutin_egl_sys v0.7.1
[INFO] [stderr]    Compiling gif v0.13.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling memmap2 v0.9.8
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling accesskit_consumer v0.28.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.6.1
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling owned_ttf_parser v0.25.1
[INFO] [stderr]    Compiling image-webp v0.2.4
[INFO] [stderr]    Compiling xkbcommon-dl v0.4.2
[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/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-2.0.106/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 -C debuginfo=2 --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"' --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=07aaa77021e80eda -C extra-filename=-2614cc75711a33fb --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f83841c12828a6d8.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d8da856f10e8aacb.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-4a25721f1aaca7af.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" "5fa1fba8069a5813c8f9adf9dc307adc44763536ecda32b7b849e72257d12604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fa1fba8069a5813c8f9adf9dc307adc44763536ecda32b7b849e72257d12604", kill_on_drop: false }`
[INFO] [stdout] 5fa1fba8069a5813c8f9adf9dc307adc44763536ecda32b7b849e72257d12604
