[INFO] cloning repository https://github.com/chronicleprotocol/challenger-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chronicleprotocol/challenger-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchronicleprotocol%2Fchallenger-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchronicleprotocol%2Fchallenger-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef0503008cbef75574c9a7c9ca3540d8c767a1dc
[INFO] testing chronicleprotocol/challenger-rs against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchronicleprotocol%2Fchallenger-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/chronicleprotocol/challenger-rs
[INFO] finished tweaking git repo https://github.com/chronicleprotocol/challenger-rs
[INFO] tweaked toml for git repo https://github.com/chronicleprotocol/challenger-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chronicleprotocol/challenger-rs 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 git repo https://github.com/chronicleprotocol/challenger-rs 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b90a92ba7c0f33cf7f479211a4eb9b6d09ecacda81108507784570339c7f82b7
[INFO] running `Command { std: "docker" "start" "-a" "b90a92ba7c0f33cf7f479211a4eb9b6d09ecacda81108507784570339c7f82b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b90a92ba7c0f33cf7f479211a4eb9b6d09ecacda81108507784570339c7f82b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b90a92ba7c0f33cf7f479211a4eb9b6d09ecacda81108507784570339c7f82b7", kill_on_drop: false }`
[INFO] [stdout] b90a92ba7c0f33cf7f479211a4eb9b6d09ecacda81108507784570339c7f82b7
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a630391c5e8fac675e9a6f3743a3d979967d5ae1f9aaa90498a7fb004d85b17b
[INFO] running `Command { std: "docker" "start" "-a" "a630391c5e8fac675e9a6f3743a3d979967d5ae1f9aaa90498a7fb004d85b17b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling const-oid v0.9.6
[INFO] [stderr]    Compiling find-msvc-tools v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling ruint-macro v1.2.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling base16ct v0.2.0
[INFO] [stderr]    Compiling dunce v1.0.5
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling aws-lc-rs v1.13.3
[INFO] [stderr]    Compiling crc v3.3.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling futures-utils-wasm v0.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling iri-string v0.7.8
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling bimap v0.6.3
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling doctest-file v1.0.0
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling cc v1.2.36
[INFO] [stderr]    Compiling indexmap v2.11.1
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling raw-cpuid v11.6.0
[INFO] [stderr]    Compiling procfs v0.17.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling metrics v0.24.2
[INFO] [stderr]    Compiling procfs-core v0.17.0
[INFO] [stderr]    Compiling sketches-ddsketch v0.3.0
[INFO] [stderr]    Compiling clap_builder v4.5.47
[INFO] [stderr]    Compiling indenter v0.3.4
[INFO] [stderr]    Compiling jiff v0.2.15
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling ff v0.13.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling tempfile v3.22.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling blst v0.3.15
[INFO] [stderr]    Compiling c-kzg v2.1.1
[INFO] [stderr]    Compiling aws-lc-sys v0.30.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]    Compiling rand_xoshiro v0.7.0
[INFO] [stderr]    Compiling quanta v0.12.6
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling rtoolbox v0.0.3
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling rpassword v7.4.0
[INFO] [stderr]    Compiling testing_logger v0.1.1
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling macro-string v0.1.4
[INFO] [stderr]    Compiling syn-solidity v1.3.1
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[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=deb851fa843f778d -C extra-filename=-0ce76441aa48d7e3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-bb0d1e7c02b2e358.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-81eeaedcf172d3e9.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" "a630391c5e8fac675e9a6f3743a3d979967d5ae1f9aaa90498a7fb004d85b17b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a630391c5e8fac675e9a6f3743a3d979967d5ae1f9aaa90498a7fb004d85b17b", kill_on_drop: false }`
[INFO] [stdout] a630391c5e8fac675e9a6f3743a3d979967d5ae1f9aaa90498a7fb004d85b17b
