[INFO] fetching crate tarzi 0.1.6...
[INFO] testing tarzi-0.1.6 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tarzi 0.1.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tarzi 0.1.6
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tarzi 0.1.6
[INFO] tweaked toml for crates.io crate tarzi 0.1.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tarzi 0.1.6 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 tarzi 0.1.6 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] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f30ce7b1b7252be8e7b5a7af0b73b8bfa37c28f01ae5f423a26cce87337ca62f
[INFO] running `Command { std: "docker" "start" "-a" "f30ce7b1b7252be8e7b5a7af0b73b8bfa37c28f01ae5f423a26cce87337ca62f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f30ce7b1b7252be8e7b5a7af0b73b8bfa37c28f01ae5f423a26cce87337ca62f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f30ce7b1b7252be8e7b5a7af0b73b8bfa37c28f01ae5f423a26cce87337ca62f", kill_on_drop: false }`
[INFO] [stdout] f30ce7b1b7252be8e7b5a7af0b73b8bfa37c28f01ae5f423a26cce87337ca62f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 449a30dde95f048db0630c6c0ac1cdd658b00fdc1a9b8185904fa1a035481be0
[INFO] running `Command { std: "docker" "start" "-a" "449a30dde95f048db0630c6c0ac1cdd658b00fdc1a9b8185904fa1a035481be0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.225
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling serde v1.0.225
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling cc v1.2.37
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling phf v0.11.3
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling indexmap v2.11.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling clap_builder v4.5.47
[INFO] [stderr]    Compiling getopts v0.2.24
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling const_format v0.2.34
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling arc-swap v1.7.1
[INFO] [stderr]    Compiling tempfile v3.22.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling which v6.0.3
[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=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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="quote"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=cc6e8185dc8c4f24 -C extra-filename=-9f350b623f83e1e8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-3961f8809e272ccb.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8b6071bff2f2593c.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9ad4622e9362cad2.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "449a30dde95f048db0630c6c0ac1cdd658b00fdc1a9b8185904fa1a035481be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "449a30dde95f048db0630c6c0ac1cdd658b00fdc1a9b8185904fa1a035481be0", kill_on_drop: false }`
[INFO] [stdout] 449a30dde95f048db0630c6c0ac1cdd658b00fdc1a9b8185904fa1a035481be0