[INFO] fetching crate wasmy-vm 0.5.6...
[INFO] testing wasmy-vm-0.5.6 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate wasmy-vm 0.5.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate wasmy-vm 0.5.6
[INFO] finished tweaking crates.io crate wasmy-vm 0.5.6
[INFO] tweaked toml for crates.io crate wasmy-vm 0.5.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasmy-vm 0.5.6 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 237 packages to latest compatible versions
[INFO] [stderr]       Adding inventory v0.2.3 (available: v0.3.24)
[INFO] [stderr]       Adding protobuf v2.28.0 (available: v3.7.2)
[INFO] [stderr]       Adding wasmer v2.3.0 (available: v7.1.0)
[INFO] [stderr]       Adding wasmer-compiler-cranelift v2.3.0 (available: v7.1.0)
[INFO] [stderr]       Adding wasmer-compiler-llvm v2.3.0 (available: v7.1.0)
[INFO] [stderr]       Adding wasmer-wasi v2.3.0 (available: v3.1.1)
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e13ffb68e74d30c26e1ff06328efd98984e8d2291080af25c0318349f145f8c2
[INFO] running `Command { std: "docker" "start" "-a" "e13ffb68e74d30c26e1ff06328efd98984e8d2291080af25c0318349f145f8c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e13ffb68e74d30c26e1ff06328efd98984e8d2291080af25c0318349f145f8c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e13ffb68e74d30c26e1ff06328efd98984e8d2291080af25c0318349f145f8c2", kill_on_drop: false }`
[INFO] [stdout] e13ffb68e74d30c26e1ff06328efd98984e8d2291080af25c0318349f145f8c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 422c7d43ebfc79a023f7169daa4486240ec31770058e9cfad2b5fab85230d181
[INFO] running `Command { std: "docker" "start" "-a" "422c7d43ebfc79a023f7169daa4486240ec31770058e9cfad2b5fab85230d181", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling rkyv v0.7.46
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling more-asserts v0.2.2
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling wasmparser v0.83.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling corosensei v0.1.4
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.82.3
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.82.3
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling region v3.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling cranelift-entity v0.82.3
[INFO] [stderr]    Compiling regalloc v0.0.34
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling cranelift-bforest v0.82.3
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling const_fn v0.4.12
[INFO] [stderr]    Compiling leb128fmt v0.1.0
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling wasm-encoder v0.247.0
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling bumpalo v3.20.2
[INFO] [stderr]    Compiling leb128 v0.2.6
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v2.3.0
[INFO] [stderr]    Compiling addr2line v0.25.1
[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-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"' --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=c8f758427297161c -C extra-filename=-0c8f3d8f44a3c070 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-0fa97b1aa44f5fda.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-544fd508281ca8af.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-423507c85e36a25a.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" "422c7d43ebfc79a023f7169daa4486240ec31770058e9cfad2b5fab85230d181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422c7d43ebfc79a023f7169daa4486240ec31770058e9cfad2b5fab85230d181", kill_on_drop: false }`
[INFO] [stdout] 422c7d43ebfc79a023f7169daa4486240ec31770058e9cfad2b5fab85230d181
