[INFO] fetching crate cowork-core 1.0.0...
[INFO] testing cowork-core-1.0.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate cowork-core 1.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate cowork-core 1.0.0
[INFO] finished tweaking crates.io crate cowork-core 1.0.0
[INFO] tweaked toml for crates.io crate cowork-core 1.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cowork-core 1.0.0 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 cowork-core 1.0.0 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87dd305f1b4593312d96806a70724d5b781a9fab53f67ecd6a8e1d20e6385d43
[INFO] running `Command { std: "docker" "start" "-a" "87dd305f1b4593312d96806a70724d5b781a9fab53f67ecd6a8e1d20e6385d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87dd305f1b4593312d96806a70724d5b781a9fab53f67ecd6a8e1d20e6385d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87dd305f1b4593312d96806a70724d5b781a9fab53f67ecd6a8e1d20e6385d43", kill_on_drop: false }`
[INFO] [stdout] 87dd305f1b4593312d96806a70724d5b781a9fab53f67ecd6a8e1d20e6385d43
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa78bc529130248955e1eff40dcc61742b0ca35098b8b91461a154b190590497
[INFO] running `Command { std: "docker" "start" "-a" "fa78bc529130248955e1eff40dcc61742b0ca35098b8b91461a154b190590497", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling bytes v1.11.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling zmij v1.0.16
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling zerocopy v0.8.33
[INFO] [stderr]    Compiling find-msvc-tools v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicase v2.9.0
[INFO] [stderr]    Compiling cc v1.2.53
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rustls v0.23.36
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]    Compiling ipnet v2.11.0
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]    Compiling matchit v0.7.3
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling ryu v1.0.22
[INFO] [stderr]    Compiling openssl-probe v0.2.0
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling rustls-native-certs v0.8.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling webpki-roots v1.0.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling uuid v1.19.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling iri-string v0.7.10
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling schemars v0.8.22
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling prost-derive v0.11.9
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling time-core v0.1.7
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling futures-timer v3.0.3
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling eventsource-stream v0.2.3
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling rust-embed-utils v8.11.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling clap_lex v0.7.7
[INFO] [stderr]    Compiling time v0.3.45
[INFO] [stderr]    Compiling clap_builder v4.5.54
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling prost v0.11.9
[INFO] [stderr]    Compiling serde_path_to_error v0.1.20
[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-2.0.114/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=d6ddbee75f4c7158 -C extra-filename=-36ad6b3654386bf3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-24b006c3dc3600c6.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-94dd8e5c29827989.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-996667735b8caf47.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" "fa78bc529130248955e1eff40dcc61742b0ca35098b8b91461a154b190590497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa78bc529130248955e1eff40dcc61742b0ca35098b8b91461a154b190590497", kill_on_drop: false }`
[INFO] [stdout] fa78bc529130248955e1eff40dcc61742b0ca35098b8b91461a154b190590497
