[INFO] fetching crate willbe 0.35.0...
[INFO] testing willbe-0.35.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate willbe 0.35.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate willbe 0.35.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate willbe 0.35.0
[INFO] tweaked toml for crates.io crate willbe 0.35.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate willbe 0.35.0 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 willbe 0.35.0 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 54aa2c17e0cf0809a89b070e4d768b81a8029ab627754b50f8b3b1410f97669f
[INFO] running `Command { std: "docker" "start" "-a" "54aa2c17e0cf0809a89b070e4d768b81a8029ab627754b50f8b3b1410f97669f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54aa2c17e0cf0809a89b070e4d768b81a8029ab627754b50f8b3b1410f97669f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54aa2c17e0cf0809a89b070e4d768b81a8029ab627754b50f8b3b1410f97669f", kill_on_drop: false }`
[INFO] [stdout] 54aa2c17e0cf0809a89b070e4d768b81a8029ab627754b50f8b3b1410f97669f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] afd4072c7bd776b0a6da6a30e23033969d14ff14c8e931982a161b1098ea3d9e
[INFO] running `Command { std: "docker" "start" "-a" "afd4072c7bd776b0a6da6a30e23033969d14ff14c8e931982a161b1098ea3d9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling collection_tools v0.38.0
[INFO] [stderr]    Compiling interval_adapter v0.42.0
[INFO] [stderr]    Compiling clone_dyn_types v0.48.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling component_model_types v0.27.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.2
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling clone_dyn_types v0.47.0
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling clone_dyn_types v0.46.0
[INFO] [stderr]    Compiling collection_tools v0.37.0
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling component_model_types v0.24.0
[INFO] [stderr]    Compiling component_model_types v0.25.0
[INFO] [stderr]    Compiling derive_tools v0.65.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling interval_adapter v0.41.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling derive_tools v0.62.0
[INFO] [stderr]    Compiling derive_tools v0.63.0
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling former_types v2.38.0
[INFO] [stderr]    Compiling const_format v0.2.35
[INFO] [stderr]    Compiling os_pipe v1.2.2
[INFO] [stderr]    Compiling camino v1.2.0
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rustls v0.22.4
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling anstyle-query v1.1.4
[INFO] [stderr]    Compiling iter_tools v0.50.0
[INFO] [stderr]    Compiling iter_tools v0.47.0
[INFO] [stderr]    Compiling iter_tools v0.48.0
[INFO] [stderr]    Compiling anstream v0.6.20
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling sigchld v0.2.4
[INFO] [stderr]    Compiling webpki-roots v1.0.2
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling clap_builder v4.5.48
[INFO] [stderr]    Compiling flate2 v1.0.35
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling xattr v1.6.1
[INFO] [stderr]    Compiling shared_child v1.1.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling webpki-roots v0.26.11
[INFO] [stderr]    Compiling filetime v0.2.26
[INFO] [stderr]    Compiling csv-core v0.1.12
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling indenter v0.3.4
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling combine v4.6.7
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling predicates v3.1.3
[INFO] [stderr]    Compiling tar v0.4.44
[INFO] [stderr]    Compiling duct v0.13.7
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling encode_unicode v1.0.0
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling rayon v1.11.0
[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-2.0.106/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"' --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=52387cb949cb4dc5 -C extra-filename=-f6f0c8d03b32adbc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8c1fd85bfbd67426.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-a54d82b26e72c007.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-5202762c38f18e99.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" "afd4072c7bd776b0a6da6a30e23033969d14ff14c8e931982a161b1098ea3d9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afd4072c7bd776b0a6da6a30e23033969d14ff14c8e931982a161b1098ea3d9e", kill_on_drop: false }`
[INFO] [stdout] afd4072c7bd776b0a6da6a30e23033969d14ff14c8e931982a161b1098ea3d9e
