[INFO] fetching crate autoflow-data 0.1.18...
[INFO] testing autoflow-data-0.1.18 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate autoflow-data 0.1.18 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate autoflow-data 0.1.18
[INFO] finished tweaking crates.io crate autoflow-data 0.1.18
[INFO] tweaked toml for crates.io crate autoflow-data 0.1.18 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate autoflow-data 0.1.18 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 autoflow-data 0.1.18 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7913b5e6dd3d54d6c3be376819e41f2e593b76463cdfdab141917039d2b27080
[INFO] running `Command { std: "docker" "start" "-a" "7913b5e6dd3d54d6c3be376819e41f2e593b76463cdfdab141917039d2b27080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7913b5e6dd3d54d6c3be376819e41f2e593b76463cdfdab141917039d2b27080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7913b5e6dd3d54d6c3be376819e41f2e593b76463cdfdab141917039d2b27080", kill_on_drop: false }`
[INFO] [stdout] 7913b5e6dd3d54d6c3be376819e41f2e593b76463cdfdab141917039d2b27080
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4b94566063c15dcc5c019ca8ce8d801a8f7c8721ab40038c7dbfbf3b73af9ed4
[INFO] running `Command { std: "docker" "start" "-a" "4b94566063c15dcc5c019ca8ce8d801a8f7c8721ab40038c7dbfbf3b73af9ed4", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling mio v1.1.0
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling indexmap v2.12.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling ipnet v2.11.0
[INFO] [stderr]    Compiling iri-string v0.7.9
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling clap_builder v4.5.51
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.25
[INFO] [stderr]    Compiling nom v8.0.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling num-cmp v0.1.0
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]    Compiling libz-sys v1.1.23
[INFO] [stderr]    Compiling libssh2-sys v0.3.1
[INFO] [stderr]    Compiling libgit2-sys v0.17.0+1.8.1
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling fraction v0.15.3
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling hyper v1.8.0
[INFO] [stderr]    Compiling tower v0.5.2
[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-2.0.110/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=e0f8e9dcbc10e7ba -C extra-filename=-b0c3c15b11f281d3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4bf3bfe6547a3e4b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-f5dbb0604dbb422c.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-3a00dd35274e822e.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" "4b94566063c15dcc5c019ca8ce8d801a8f7c8721ab40038c7dbfbf3b73af9ed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b94566063c15dcc5c019ca8ce8d801a8f7c8721ab40038c7dbfbf3b73af9ed4", kill_on_drop: false }`
[INFO] [stdout] 4b94566063c15dcc5c019ca8ce8d801a8f7c8721ab40038c7dbfbf3b73af9ed4
