[INFO] fetching crate hf-xet 1.5.1...
[INFO] testing hf-xet-1.5.1 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate hf-xet 1.5.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate hf-xet 1.5.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate hf-xet 1.5.1
[INFO] tweaked toml for crates.io crate hf-xet 1.5.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hf-xet 1.5.1 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 crates.io crate hf-xet 1.5.1 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 76540d22c224dca682e734703ebb94bc2f762ba6babd4de12ffcdb93a5c6e32b
[INFO] running `Command { std: "docker" "start" "-a" "76540d22c224dca682e734703ebb94bc2f762ba6babd4de12ffcdb93a5c6e32b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76540d22c224dca682e734703ebb94bc2f762ba6babd4de12ffcdb93a5c6e32b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76540d22c224dca682e734703ebb94bc2f762ba6babd4de12ffcdb93a5c6e32b", kill_on_drop: false }`
[INFO] [stdout] 76540d22c224dca682e734703ebb94bc2f762ba6babd4de12ffcdb93a5c6e32b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6c4984da9af9e2e40fb49072515530e28ba51b86e3517971ce0b3af973ab0051
[INFO] running `Command { std: "docker" "start" "-a" "6c4984da9af9e2e40fb49072515530e28ba51b86e3517971ce0b3af973ab0051", kill_on_drop: false }`
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling zerocopy v0.8.47
[INFO] [stderr]    Compiling aws-lc-rs v1.16.2
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling writeable v0.6.2
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling litemap v0.8.1
[INFO] [stderr]    Compiling rustls-pki-types v1.14.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling icu_normalizer_data v2.1.1
[INFO] [stderr]    Compiling icu_properties_data v2.1.2
[INFO] [stderr]    Compiling rustls v0.23.37
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling cc v1.2.57
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling openssl-probe v0.2.1
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling ipnet v2.12.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling rustls-native-certs v0.8.3
[INFO] [stderr]    Compiling iri-string v0.7.11
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling deranged v0.5.8
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling anstyle-parse v1.0.0
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling colorchoice v1.0.5
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling typewit v1.14.2
[INFO] [stderr]    Compiling time-core v0.1.8
[INFO] [stderr]    Compiling dtor-proc-macro v0.0.6
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling num-conv v0.2.0
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling const_panic v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling dtor v0.1.1
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling ctor-proc-macro v0.0.7
[INFO] [stderr]    Compiling konst_proc_macros v0.4.1
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling cmake v0.1.57
[INFO] [stderr]    Compiling clap_builder v4.6.0
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling ctor v0.6.3
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling sysinfo v0.38.4
[INFO] [stderr]    Compiling whoami v2.1.1
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling konst v0.4.3
[INFO] [stderr]    Compiling more-asserts v0.3.1
[INFO] [stderr]    Compiling colored v3.1.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling twox-hash v2.1.2
[INFO] [stderr]    Compiling constant_time_eq v0.4.2
[INFO] [stderr]    Compiling oneshot v0.1.13
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling const-str v1.1.0
[INFO] [stderr]    Compiling redb v3.1.1
[INFO] [stderr]    Compiling humantime v2.3.0
[INFO] [stderr]    Compiling aws-lc-sys v0.39.0
[INFO] [stderr]    Compiling blake3 v1.8.3
[INFO] [stderr]    Compiling sha2-asm v0.6.4
[INFO] [stderr]    Compiling lz4_flex v0.13.0
[INFO] [stderr]    Compiling time v0.3.47
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling uuid v1.22.0
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling countio v0.3.0
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling safe-transmute v0.11.3
[INFO] [stderr]    Compiling heapify v0.2.0
[INFO] [stderr]    Compiling statrs v0.18.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling gearhash v0.1.3
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling synstructure v0.13.2
[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-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-2.0.117/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=f50fd23ee619c33a -C extra-filename=-db35dfc171bce774 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-0fa97b1aa44f5fda.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-544fd508281ca8af.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-423507c85e36a25a.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" "6c4984da9af9e2e40fb49072515530e28ba51b86e3517971ce0b3af973ab0051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c4984da9af9e2e40fb49072515530e28ba51b86e3517971ce0b3af973ab0051", kill_on_drop: false }`
[INFO] [stdout] 6c4984da9af9e2e40fb49072515530e28ba51b86e3517971ce0b3af973ab0051