[INFO] fetching crate qudag-exchange-standalone-cli 0.3.1...
[INFO] testing qudag-exchange-standalone-cli-0.3.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate qudag-exchange-standalone-cli 0.3.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate qudag-exchange-standalone-cli 0.3.1
[INFO] finished tweaking crates.io crate qudag-exchange-standalone-cli 0.3.1
[INFO] tweaked toml for crates.io crate qudag-exchange-standalone-cli 0.3.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qudag-exchange-standalone-cli 0.3.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qudag-exchange-standalone-cli 0.3.1 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-2026-04-21" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ae945a2ccc06d24f52ec314ee1ee5f08243756e9c9ed9e4d405a8a122b8071c
[INFO] running `Command { std: "docker" "start" "-a" "4ae945a2ccc06d24f52ec314ee1ee5f08243756e9c9ed9e4d405a8a122b8071c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ae945a2ccc06d24f52ec314ee1ee5f08243756e9c9ed9e4d405a8a122b8071c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae945a2ccc06d24f52ec314ee1ee5f08243756e9c9ed9e4d405a8a122b8071c", kill_on_drop: false }`
[INFO] [stdout] 4ae945a2ccc06d24f52ec314ee1ee5f08243756e9c9ed9e4d405a8a122b8071c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df63603375df866f79977e39f3053515d0a1e4f9dfe47d42b29e847b12dd6747
[INFO] running `Command { std: "docker" "start" "-a" "df63603375df866f79977e39f3053515d0a1e4f9dfe47d42b29e847b12dd6747", kill_on_drop: false }`
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling inout v0.1.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling pqcrypto-traits v0.3.5
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling base64ct v1.8.0
[INFO] [stderr]    Compiling signature v2.2.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling cc v1.2.27
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling universal-hash v0.5.1
[INFO] [stderr]    Compiling polyval v0.6.2
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling aead v0.5.2
[INFO] [stderr]    Compiling poly1305 v0.8.0
[INFO] [stderr]    Compiling password-hash v0.5.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling ghash v0.5.1
[INFO] [stderr]    Compiling ed25519 v2.2.3
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling constant_time_eq v0.3.1
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling hkdf v0.12.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling argon2 v0.5.3
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling lru v0.12.5
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling anstream v0.6.19
[INFO] [stderr]    Compiling sled v0.34.7
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling winnow v0.7.11
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling clap_builder v4.5.40
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling shell-words v1.1.0
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling pqcrypto-internals v0.2.10
[INFO] [stderr]    Compiling pqcrypto-hqc v0.2.1
[INFO] [stderr]    Compiling pqcrypto-dilithium v0.5.0
[INFO] [stderr]    Compiling pqcrypto-kyber v0.5.0
[INFO] [stderr]    Compiling blake3 v1.8.2
[INFO] [stderr]    Compiling directories v5.0.1
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling matchers v0.1.0
[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-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.104/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="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=a13d33440856476a -C extra-filename=-2a311c4e467aee89 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c09048c77d6dd0d8.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0431a71a56ef9e12.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6572fa6bb87326c0.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" "df63603375df866f79977e39f3053515d0a1e4f9dfe47d42b29e847b12dd6747", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df63603375df866f79977e39f3053515d0a1e4f9dfe47d42b29e847b12dd6747", kill_on_drop: false }`
[INFO] [stdout] df63603375df866f79977e39f3053515d0a1e4f9dfe47d42b29e847b12dd6747
