[INFO] fetching crate unc-jsonrpc-client 0.10.2...
[INFO] testing unc-jsonrpc-client-0.10.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate unc-jsonrpc-client 0.10.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate unc-jsonrpc-client 0.10.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate unc-jsonrpc-client 0.10.2
[INFO] tweaked toml for crates.io crate unc-jsonrpc-client 0.10.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unc-jsonrpc-client 0.10.2 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unc-jsonrpc-client 0.10.2 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58c24c5a39927f6a732d97c6933c2f76911160b27e06fbd857906d5434e6bfeb
[INFO] running `Command { std: "docker" "start" "-a" "58c24c5a39927f6a732d97c6933c2f76911160b27e06fbd857906d5434e6bfeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58c24c5a39927f6a732d97c6933c2f76911160b27e06fbd857906d5434e6bfeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58c24c5a39927f6a732d97c6933c2f76911160b27e06fbd857906d5434e6bfeb", kill_on_drop: false }`
[INFO] [stdout] 58c24c5a39927f6a732d97c6933c2f76911160b27e06fbd857906d5434e6bfeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94faf1a7573dd3dfba5b3e6fd525f28b05ae63890c9c37ad8ca0460027c954db
[INFO] running `Command { std: "docker" "start" "-a" "94faf1a7573dd3dfba5b3e6fd525f28b05ae63890c9c37ad8ca0460027c954db", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling smallvec v1.13.1
[INFO] [stderr]    Compiling cc v1.0.89
[INFO] [stderr]    Compiling zerocopy v0.7.32
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling rkyv v0.7.44
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling cranelift-isle v0.101.4
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling indexmap v2.2.5
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.101.4
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.101.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling more-asserts v0.2.2
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling borsh v1.3.1
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling slice-group-by v0.3.1
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling base64ct v1.6.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling socket2 v0.5.6
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling region v3.0.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling regalloc2 v0.9.3
[INFO] [stderr]    Compiling pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling bumpalo v3.15.3
[INFO] [stderr]    Compiling arrayref v0.3.7
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-bigint-dig v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling wasmer-vm-x v2.4.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.12
[INFO] [stderr]    Compiling cranelift-codegen v0.101.4
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling finite-wasm v0.5.0
[INFO] [stderr]    Compiling platforms v3.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling petgraph v0.6.4
[INFO] [stderr]    Compiling curve25519-dalek v4.1.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling openssl-sys v0.9.101
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[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-2025-10-28-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.52/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="quote"' --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", "quote", "test", "visit", "visit-mut"))' -C metadata=37f6d5cc55a04d6f -C extra-filename=-68f88d7dbe218cda --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-703dfdb7066398e1.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-2bed5a3cf4677417.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-772f13ecc3fc189a.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" "94faf1a7573dd3dfba5b3e6fd525f28b05ae63890c9c37ad8ca0460027c954db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94faf1a7573dd3dfba5b3e6fd525f28b05ae63890c9c37ad8ca0460027c954db", kill_on_drop: false }`
[INFO] [stdout] 94faf1a7573dd3dfba5b3e6fd525f28b05ae63890c9c37ad8ca0460027c954db