[INFO] fetching crate exocore-store 0.1.26...
[INFO] testing exocore-store-0.1.26 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate exocore-store 0.1.26 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate exocore-store 0.1.26
[INFO] finished tweaking crates.io crate exocore-store 0.1.26
[INFO] tweaked toml for crates.io crate exocore-store 0.1.26 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate exocore-store 0.1.26 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 399 packages to latest compatible versions
[INFO] [stderr]       Adding extsort v0.4.2 (available: v0.5.0)
[INFO] [stderr]       Adding itertools v0.13.0 (available: v0.14.0)
[INFO] [stderr]       Adding lru v0.12.5 (available: v0.16.1)
[INFO] [stderr]       Adding tantivy v0.19.2 (available: v0.25.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding uuid v1.6.1 (available: v1.18.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b82dd651c756df28d686f970fd9e4d66f178cce93ef962c2e25bcf386b793c05
[INFO] running `Command { std: "docker" "start" "-a" "b82dd651c756df28d686f970fd9e4d66f178cce93ef962c2e25bcf386b793c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b82dd651c756df28d686f970fd9e4d66f178cce93ef962c2e25bcf386b793c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b82dd651c756df28d686f970fd9e4d66f178cce93ef962c2e25bcf386b793c05", kill_on_drop: false }`
[INFO] [stdout] b82dd651c756df28d686f970fd9e4d66f178cce93ef962c2e25bcf386b793c05
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30add5067ac25e91afb0b536186404edcc4c427e60a85eb0c682f176638af862
[INFO] running `Command { std: "docker" "start" "-a" "30add5067ac25e91afb0b536186404edcc4c427e60a85eb0c682f176638af862", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling core2 v0.4.0
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling unsigned-varint v0.8.0
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling data-encoding v2.9.0
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.104
[INFO] [stderr]    Compiling multihash v0.19.3
[INFO] [stderr]    Compiling const-str v0.4.3
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ff v0.13.1
[INFO] [stderr]    Compiling quick-protobuf v0.8.1
[INFO] [stderr]    Compiling asn1_der v0.7.6
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling bs58 v0.5.1
[INFO] [stderr]    Compiling base-x v0.2.11
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling unsigned-varint v0.7.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling web-time v1.1.0
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling toml_datetime v0.7.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling wasm-bindgen v0.2.104
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling capnp v0.19.8
[INFO] [stderr]    Compiling is_debug v1.1.0
[INFO] [stderr]    Compiling multimap v0.10.1
[INFO] [stderr]    Compiling camino v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]    Compiling protobuf v3.7.2
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling lru v0.12.5
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling const_format v0.2.34
[INFO] [stderr]    Compiling toml_parser v1.0.3
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling textwrap v0.16.2
[INFO] [stderr]    Compiling petname v1.1.3
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling toml_edit v0.23.6
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling snow v0.9.6
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling ownedbytes v0.4.0
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling tantivy-common v0.4.0
[INFO] [stderr]    Compiling combine v4.6.7
[INFO] [stderr]    Compiling fastdivide v0.4.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling capnpc v0.19.0
[INFO] [stderr]    Compiling shadow-rs v0.33.0
[INFO] [stderr]    Compiling tantivy-bitpacker v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling bitpacking v0.8.4
[INFO] [stderr]    Compiling fastfield_codecs v0.3.1
[INFO] [stderr]    Compiling lru v0.7.8
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling fail v0.5.1
[INFO] [stderr]    Compiling measure_time v0.8.3
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling murmurhash32 v0.2.0
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling census v0.4.2
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.104
[INFO] [stderr]    Compiling htmlescape v0.3.1
[INFO] [stderr]    Compiling lz4_flex v0.9.5
[INFO] [stderr]    Compiling match-lookup v0.1.1
[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-2025-09-21-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"' --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=41219c584ad8e6cc -C extra-filename=-f7e2c768c3173f67 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b9aafb1c45c4f904.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0b498d6702a2b6ed.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-76924bfc03cc13f9.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" "30add5067ac25e91afb0b536186404edcc4c427e60a85eb0c682f176638af862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30add5067ac25e91afb0b536186404edcc4c427e60a85eb0c682f176638af862", kill_on_drop: false }`
[INFO] [stdout] 30add5067ac25e91afb0b536186404edcc4c427e60a85eb0c682f176638af862