[INFO] cloning repository https://github.com/pholtz/spear
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pholtz/spear" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpholtz%2Fspear", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpholtz%2Fspear'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3747424fe5bc3f8e01f85e9c2f0f8f11da07ad4f
[INFO] testing pholtz/spear against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpholtz%2Fspear" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pholtz/spear
[INFO] finished tweaking git repo https://github.com/pholtz/spear
[INFO] tweaked toml for git repo https://github.com/pholtz/spear written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pholtz/spear on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pholtz/spear 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 220952e1802df60f57b16e0b76fbf5f8b63e070534c8f1ecb836aaf35cbcc039
[INFO] running `Command { std: "docker" "start" "-a" "220952e1802df60f57b16e0b76fbf5f8b63e070534c8f1ecb836aaf35cbcc039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "220952e1802df60f57b16e0b76fbf5f8b63e070534c8f1ecb836aaf35cbcc039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "220952e1802df60f57b16e0b76fbf5f8b63e070534c8f1ecb836aaf35cbcc039", kill_on_drop: false }`
[INFO] [stdout] 220952e1802df60f57b16e0b76fbf5f8b63e070534c8f1ecb836aaf35cbcc039
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 610ed6ad5a721f10b0797d25ec3022295a9f388f7318825c5136196f67bc1adf
[INFO] running `Command { std: "docker" "start" "-a" "610ed6ad5a721f10b0797d25ec3022295a9f388f7318825c5136196f67bc1adf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling find-msvc-tools v0.1.1
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling libloading v0.8.8
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling crossfont v0.5.2
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.1
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling foreign-types-shared v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling cc v1.2.37
[INFO] [stderr]    Compiling dlib v0.5.2
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling safe_arch v0.7.4
[INFO] [stderr]    Compiling tiny-skia-path v0.7.0
[INFO] [stderr]    Compiling safe_arch v0.5.2
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling raw-window-handle v0.5.2
[INFO] [stderr]    Compiling wide v0.7.33
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling zerocopy v0.8.28
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.6
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.8
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling jpeg-decoder v0.3.2
[INFO] [stderr]    Compiling owo-colors v4.2.3
[INFO] [stderr]    Compiling tiny-skia v0.7.0
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling ultraviolet v0.9.2
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling nix v0.25.1
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling servo-fontconfig v0.5.1
[INFO] [stderr]    Compiling freetype-rs v0.26.0
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling bracket-geometry v0.8.7
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling wayland-commons v0.29.5
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling bracket-color v0.8.7
[INFO] [stderr]    Compiling bracket-embedding v0.8.7
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling object-pool v0.5.4
[INFO] [stderr]    Compiling bracket-algorithm-traits v0.8.7
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling bracket-rex v0.8.7
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling glow v0.11.2
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]    Compiling macro_rules_attribute-proc_macro v0.1.3
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling instability v0.3.9
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling wayland-cursor v0.29.5
[INFO] [stderr]    Compiling wayland-egl v0.29.5
[INFO] [stderr]    Compiling macro_rules_attribute v0.1.3
[INFO] [stderr]    Compiling bracket-pathfinding v0.8.7
[INFO] [stderr]    Compiling tracing-error v0.2.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling tynm v0.1.10
[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-2026-04-21-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 --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=0e06d0f12578b324 -C extra-filename=-49ce76c07102ea98 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ec2e4e906c3fa39e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0ca382cba16550b0.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-994e2229f72e62d3.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" "610ed6ad5a721f10b0797d25ec3022295a9f388f7318825c5136196f67bc1adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "610ed6ad5a721f10b0797d25ec3022295a9f388f7318825c5136196f67bc1adf", kill_on_drop: false }`
[INFO] [stdout] 610ed6ad5a721f10b0797d25ec3022295a9f388f7318825c5136196f67bc1adf