[INFO] fetching crate polywrap_client_default_config 0.1.11...
[INFO] testing polywrap_client_default_config-0.1.11 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate polywrap_client_default_config 0.1.11 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate polywrap_client_default_config 0.1.11
[INFO] finished tweaking crates.io crate polywrap_client_default_config 0.1.11
[INFO] tweaked toml for crates.io crate polywrap_client_default_config 0.1.11 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polywrap_client_default_config 0.1.11 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 627 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding solang-parser v0.3.3 (available: v0.3.5)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] [stderr]       Adding wat v1.0.71 (available: v1.247.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 150f6d284a940aa1d6295bff4d9422390cac527938b0198e7976455db54d455a
[INFO] running `Command { std: "docker" "start" "-a" "150f6d284a940aa1d6295bff4d9422390cac527938b0198e7976455db54d455a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "150f6d284a940aa1d6295bff4d9422390cac527938b0198e7976455db54d455a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "150f6d284a940aa1d6295bff4d9422390cac527938b0198e7976455db54d455a", kill_on_drop: false }`
[INFO] [stdout] 150f6d284a940aa1d6295bff4d9422390cac527938b0198e7976455db54d455a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ad571e833b2858e8d31216394f0f783533d39acbcd2c825edfc94cf8329a4ace
[INFO] running `Command { std: "docker" "start" "-a" "ad571e833b2858e8d31216394f0f783533d39acbcd2c825edfc94cf8329a4ace", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling toml_edit v0.25.11+spec-1.1.0
[INFO] [stderr]    Compiling rustls-pki-types v1.14.1
[INFO] [stderr]    Compiling der v0.7.10
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling bumpalo v3.20.2
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling rustls v0.23.39
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling ff v0.13.1
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling parity-scale-codec v3.7.5
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling group v0.13.0
[INFO] [stderr]    Compiling webpki-roots v1.0.7
[INFO] [stderr]    Compiling pest v2.8.6
[INFO] [stderr]    Compiling crypto-bigint v0.5.5
[INFO] [stderr]    Compiling doc-comment v0.3.4
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling proc-macro-crate v3.5.0
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling sec1 v0.7.3
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling webpki-roots v0.26.11
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling uriparse v0.6.4
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]    Compiling pest_meta v2.8.6
[INFO] [stderr]    Compiling const_format v0.2.36
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling signature v2.2.0
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling fixed-hash v0.8.0
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling cranelift-isle v0.91.1
[INFO] [stderr]    Compiling uuid v1.23.1
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling rend v0.4.2
[INFO] [stderr]    Compiling num-cmp v0.1.0
[INFO] [stderr]    Compiling uint v0.9.5
[INFO] [stderr]    Compiling cranelift-entity v0.91.1
[INFO] [stderr]    Compiling rkyv v0.7.46
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.91.1
[INFO] [stderr]    Compiling leb128 v0.2.6
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.91.1
[INFO] [stderr]    Compiling spki v0.7.3
[INFO] [stderr]    Compiling corosensei v0.1.4
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling slice-group-by v0.3.1
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling camino v1.2.2
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling pkcs8 v0.10.2
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling sha3 v0.10.9
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling xxhash-rust v0.8.15
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling more-asserts v0.2.2
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling region v3.0.2
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling elliptic-curve v0.13.8
[INFO] [stderr]    Compiling rustls-webpki v0.103.13
[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=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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="quote"' --cfg 'feature="visit"' --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=3c6f9d346b4e951d -C extra-filename=-a19899efa6212da3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-90c979ef395d2fde.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e7da784e1a6aaae7.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-499e208ff65c691c.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ad571e833b2858e8d31216394f0f783533d39acbcd2c825edfc94cf8329a4ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad571e833b2858e8d31216394f0f783533d39acbcd2c825edfc94cf8329a4ace", kill_on_drop: false }`
[INFO] [stdout] ad571e833b2858e8d31216394f0f783533d39acbcd2c825edfc94cf8329a4ace
