[INFO] cloning repository https://github.com/imranshiundu/neko
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imranshiundu/neko" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimranshiundu%2Fneko", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimranshiundu%2Fneko'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f233ad04b6feb6ca0029befc51f2785953b742aa
[INFO] testing imranshiundu/neko against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimranshiundu%2Fneko" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/imranshiundu/neko
[INFO] finished tweaking git repo https://github.com/imranshiundu/neko
[INFO] tweaked toml for git repo https://github.com/imranshiundu/neko written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/imranshiundu/neko 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/imranshiundu/neko 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 95f129ddfd6144b06657f96bdbb2fa6e65aa4b26c9cce4b8c2babe9b916d0dbd
[INFO] running `Command { std: "docker" "start" "-a" "95f129ddfd6144b06657f96bdbb2fa6e65aa4b26c9cce4b8c2babe9b916d0dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95f129ddfd6144b06657f96bdbb2fa6e65aa4b26c9cce4b8c2babe9b916d0dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95f129ddfd6144b06657f96bdbb2fa6e65aa4b26c9cce4b8c2babe9b916d0dbd", kill_on_drop: false }`
[INFO] [stdout] 95f129ddfd6144b06657f96bdbb2fa6e65aa4b26c9cce4b8c2babe9b916d0dbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 68d15ccf85d55c6ed0394d0e01a9827bb3232b9b127314f84f330c51b228c7c5
[INFO] running `Command { std: "docker" "start" "-a" "68d15ccf85d55c6ed0394d0e01a9827bb3232b9b127314f84f330c51b228c7c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling cc v1.2.28
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling slab v0.4.10
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling litemap v0.8.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling writeable v0.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling wayland-sys v0.31.6
[INFO] [stderr]    Compiling quick-xml v0.37.5
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling rustls v0.23.28
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling wayland-backend v0.3.10
[INFO] [stderr]    Compiling anstyle-query v1.1.3
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling wayland-client v0.31.10
[INFO] [stderr]    Compiling anstream v0.6.19
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling markup5ever v0.12.1
[INFO] [stderr]    Compiling wayland-scanner v0.31.6
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling os_pipe v1.2.2
[INFO] [stderr]    Compiling markup5ever v0.14.1
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling onig_sys v69.9.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling dtoa v1.0.10
[INFO] [stderr]    Compiling rustls-native-certs v0.8.1
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling selectors v0.26.0
[INFO] [stderr]    Compiling webpki-roots v1.0.1
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling iri-string v0.7.8
[INFO] [stderr]    Compiling jiff v0.2.15
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling rust-embed-utils v8.7.2
[INFO] [stderr]    Compiling sigchld v0.2.3
[INFO] [stderr]    Compiling cpu-time v1.0.0
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling bytes-utils v0.1.4
[INFO] [stderr]    Compiling combine v4.6.7
[INFO] [stderr]    Compiling vte v0.14.1
[INFO] [stderr]    Compiling servo_arc v0.4.1
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling bytemuck v1.23.1
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling x11rb-protocol v0.13.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[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-2.0.104/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="visit"' --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=9b6ead467c9f9954 -C extra-filename=-bc99b7eaf0b55120 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c09048c77d6dd0d8.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0431a71a56ef9e12.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6572fa6bb87326c0.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" "68d15ccf85d55c6ed0394d0e01a9827bb3232b9b127314f84f330c51b228c7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d15ccf85d55c6ed0394d0e01a9827bb3232b9b127314f84f330c51b228c7c5", kill_on_drop: false }`
[INFO] [stdout] 68d15ccf85d55c6ed0394d0e01a9827bb3232b9b127314f84f330c51b228c7c5
