[INFO] fetching crate mace 0.1.3...
[INFO] documenting mace-0.1.3 against beta-2026-01-20 for beta-1.94-rustdoc-1
[INFO] extracting crate mace 0.1.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate mace 0.1.3
[INFO] finished tweaking crates.io crate mace 0.1.3
[INFO] tweaked toml for crates.io crate mace 0.1.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mace 0.1.3 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mace 0.1.3 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afcc9adc0fc5e3174b443a4d170ca0a21881c8e00979e616b2799fb10731bb4e
[INFO] running `Command { std: "docker" "start" "-a" "afcc9adc0fc5e3174b443a4d170ca0a21881c8e00979e616b2799fb10731bb4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afcc9adc0fc5e3174b443a4d170ca0a21881c8e00979e616b2799fb10731bb4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afcc9adc0fc5e3174b443a4d170ca0a21881c8e00979e616b2799fb10731bb4e", kill_on_drop: false }`
[INFO] [stdout] afcc9adc0fc5e3174b443a4d170ca0a21881c8e00979e616b2799fb10731bb4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f213f1ebe8f0c11cb6f8f1bc629a42b02f5b8f84c74f294e3ec267cc52df6fa5
[INFO] running `Command { std: "docker" "start" "-a" "f213f1ebe8f0c11cb6f8f1bc629a42b02f5b8f84c74f294e3ec267cc52df6fa5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking base64ct v1.7.3
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling cranelift-assembler-x64-meta v0.117.2
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling pulley-interpreter v30.0.2
[INFO] [stderr]    Compiling protobuf v3.7.2
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling cranelift-bitset v0.117.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling linux-raw-sys v0.9.3
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling cranelift-isle v0.117.2
[INFO] [stderr]     Checking bumpalo v3.17.0
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.117.2
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling cranelift-assembler-x64 v0.117.2
[INFO] [stderr]     Checking deranged v0.4.1
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]     Checking wasmtime-math v30.0.2
[INFO] [stderr]    Compiling wasmparser v0.224.1
[INFO] [stderr]     Checking arbitrary v1.4.1
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling logos-codegen v0.15.0
[INFO] [stderr]    Compiling bstr v1.11.3
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling wasm-encoder v0.224.1
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]     Checking cranelift-control v0.117.2
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]     Checking rusticata-macros v4.1.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]     Checking cobs v0.2.3
[INFO] [stderr]    Compiling num-bigint-dig v0.8.4
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling linkme-impl v0.3.32
[INFO] [stderr]    Compiling oid-registry v0.8.1
[INFO] [stderr]    Compiling punycode v0.4.1
[INFO] [stderr]     Checking psl v2.1.98
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling twistrs v0.7.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking countme v3.0.1
[INFO] [stderr]    Compiling memx v0.1.32
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling portable-atomic v1.11.0
[INFO] [stderr]     Checking text-size v1.1.1
[INFO] [stderr]     Checking miniz_oxide v0.8.5
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling bzip2-sys v0.1.13+1.0.8
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling lzma-sys v0.1.20
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling globset v0.4.16
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking wasm-encoder v0.214.0
[INFO] [stderr]     Checking wasmtime-jit-icache-coherence v30.0.2
[INFO] [stderr]     Checking wasmtime-asm-macros v30.0.2
[INFO] [stderr]    Compiling zip v2.5.0
[INFO] [stderr]    Compiling ignore v0.4.23
[INFO] [stderr]     Checking data-encoding v2.8.0
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.117.2
[INFO] [stderr]     Checking lockfree-object-pool v0.1.6
[INFO] [stderr]     Checking wasmtime-slab v30.0.2
[INFO] [stderr]     Checking sptr v0.3.2
[INFO] [stderr]     Checking ascii_tree v0.1.1
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking chrono v0.4.40
[INFO] [stderr]     Checking zopfli v0.8.1
[INFO] [stderr]     Checking clap_builder v4.5.35
[INFO] [stderr]     Checking xz2 v0.1.7
[INFO] [stderr]     Checking flate2 v1.1.1
[INFO] [stderr]     Checking lzma-rs v0.3.0
[INFO] [stderr]    Compiling synstructure v0.13.1
[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-2026-01-20-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.100/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"' --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=cea3fee569902265 -C extra-filename=-9ceebe7a93fe7a5e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-46a9ac5fe3e7a7a0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9312374a856492ae.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-958b805d9ab3f4fe.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" "f213f1ebe8f0c11cb6f8f1bc629a42b02f5b8f84c74f294e3ec267cc52df6fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f213f1ebe8f0c11cb6f8f1bc629a42b02f5b8f84c74f294e3ec267cc52df6fa5", kill_on_drop: false }`
[INFO] [stdout] f213f1ebe8f0c11cb6f8f1bc629a42b02f5b8f84c74f294e3ec267cc52df6fa5
