[INFO] fetching crate linera-service 0.15.4...
[INFO] testing linera-service-0.15.4 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate linera-service 0.15.4 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate linera-service 0.15.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate linera-service 0.15.4
[INFO] tweaked toml for crates.io crate linera-service 0.15.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate linera-service 0.15.4 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] crate crates.io crate linera-service 0.15.4 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8b78d027fa391b24fb047953bb4e5ff1e8d5cef2b295facaad1b67c9adb13019
[INFO] running `Command { std: "docker" "start" "-a" "8b78d027fa391b24fb047953bb4e5ff1e8d5cef2b295facaad1b67c9adb13019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b78d027fa391b24fb047953bb4e5ff1e8d5cef2b295facaad1b67c9adb13019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b78d027fa391b24fb047953bb4e5ff1e8d5cef2b295facaad1b67c9adb13019", kill_on_drop: false }`
[INFO] [stdout] 8b78d027fa391b24fb047953bb4e5ff1e8d5cef2b295facaad1b67c9adb13019
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bda1c7b102aa9fe264e6076a46996617c55a62799fc843dda3e8ae141618c98e
[INFO] running `Command { std: "docker" "start" "-a" "bda1c7b102aa9fe264e6076a46996617c55a62799fc843dda3e8ae141618c98e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling thiserror v2.0.14
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling prettyplease v0.2.36
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling libloading v0.8.8
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling syn v2.0.105
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling bindgen v0.71.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling rend v0.4.2
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling cc v1.2.32
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rkyv v0.7.45
[INFO] [stderr]    Compiling cranelift-isle v0.91.1
[INFO] [stderr]    Compiling winnow v0.7.12
[INFO] [stderr]    Compiling base64ct v1.6.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling corosensei v0.1.4
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.91.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.91.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling cranelift-entity v0.91.1
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling more-asserts v0.2.2
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling xxhash-rust v0.8.15
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling region v3.0.2
[INFO] [stderr]    Compiling memmap2 v0.6.2
[INFO] [stderr]    Compiling slice-group-by v0.3.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling cranelift-bforest v0.91.1
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling multer v3.1.0
[INFO] [stderr]    Compiling bindgen v0.65.1
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling frunk_core v0.4.4
[INFO] [stderr]    Compiling regalloc2 v0.5.1
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]    Compiling self_cell v1.2.0
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling lz4-sys v1.11.1+lz4-1.10.0
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling bzip2-sys v0.1.13+1.0.8
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling ascii_utils v0.9.3
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling protobuf v2.28.0
[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-2025-09-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.105/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=36f6105cf65d3e97 -C extra-filename=-c129922b4ab7ac9a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5e748a29bbb5128e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b8c2036f549873ed.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-958b805d9ab3f4fe.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" "bda1c7b102aa9fe264e6076a46996617c55a62799fc843dda3e8ae141618c98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bda1c7b102aa9fe264e6076a46996617c55a62799fc843dda3e8ae141618c98e", kill_on_drop: false }`
[INFO] [stdout] bda1c7b102aa9fe264e6076a46996617c55a62799fc843dda3e8ae141618c98e