[INFO] fetching crate agntcy-slim-tracing 0.2.7...
[INFO] testing agntcy-slim-tracing-0.2.7 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate agntcy-slim-tracing 0.2.7 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate agntcy-slim-tracing 0.2.7
[INFO] finished tweaking crates.io crate agntcy-slim-tracing 0.2.7
[INFO] tweaked toml for crates.io crate agntcy-slim-tracing 0.2.7 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate agntcy-slim-tracing 0.2.7 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 agntcy-slim-tracing 0.2.7 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-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87dac4223ea3a20f477a93b30b3d4a489050ed471d97fca200c346454bd00668
[INFO] running `Command { std: "docker" "start" "-a" "87dac4223ea3a20f477a93b30b3d4a489050ed471d97fca200c346454bd00668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87dac4223ea3a20f477a93b30b3d4a489050ed471d97fca200c346454bd00668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87dac4223ea3a20f477a93b30b3d4a489050ed471d97fca200c346454bd00668", kill_on_drop: false }`
[INFO] [stdout] 87dac4223ea3a20f477a93b30b3d4a489050ed471d97fca200c346454bd00668
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc4ba4f87f5be7553e4c755b60be022a346b3a534d22a30151011bab78af9da1
[INFO] running `Command { std: "docker" "start" "-a" "dc4ba4f87f5be7553e4c755b60be022a346b3a534d22a30151011bab78af9da1", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.8.7
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling litemap v0.8.0
[INFO] [stderr]    Compiling aws-lc-rs v1.13.1
[INFO] [stderr]    Compiling ipnet v2.11.0
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling writeable v0.6.1
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling pulldown-cmark v0.13.0
[INFO] [stderr]    Compiling logos-codegen v0.15.1
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling axum-core v0.5.5
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling multimap v0.10.1
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling iri-string v0.7.8
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling cc v1.2.41
[INFO] [stderr]    Compiling regex-automata v0.4.12
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling pulldown-cmark-to-cmark v21.0.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling oid-registry v0.8.1
[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-2.0.106/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="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=eb54ce828a44b13f -C extra-filename=-15612af449c5735d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8476d166045b0f54.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-24cc753b97170f58.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9ad4622e9362cad2.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" "dc4ba4f87f5be7553e4c755b60be022a346b3a534d22a30151011bab78af9da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc4ba4f87f5be7553e4c755b60be022a346b3a534d22a30151011bab78af9da1", kill_on_drop: false }`
[INFO] [stdout] dc4ba4f87f5be7553e4c755b60be022a346b3a534d22a30151011bab78af9da1
