[INFO] fetching crate wiggle 44.0.0...
[INFO] testing wiggle-44.0.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate wiggle 44.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate wiggle 44.0.0
[INFO] finished tweaking crates.io crate wiggle 44.0.0
[INFO] tweaked toml for crates.io crate wiggle 44.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wiggle 44.0.0 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 wiggle 44.0.0 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] 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] ff77bdb02eedd6e7ce0d2ae1739fb34a6b4be3751b6e3b0b74c40bf74b5ada95
[INFO] running `Command { std: "docker" "start" "-a" "ff77bdb02eedd6e7ce0d2ae1739fb34a6b4be3751b6e3b0b74c40bf74b5ada95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff77bdb02eedd6e7ce0d2ae1739fb34a6b4be3751b6e3b0b74c40bf74b5ada95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff77bdb02eedd6e7ce0d2ae1739fb34a6b4be3751b6e3b0b74c40bf74b5ada95", kill_on_drop: false }`
[INFO] [stdout] ff77bdb02eedd6e7ce0d2ae1739fb34a6b4be3751b6e3b0b74c40bf74b5ada95
[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] de7d8b709223fa9a21264475830abfd1c2660c77b7d6f74af675670e5aed494b
[INFO] running `Command { std: "docker" "start" "-a" "de7d8b709223fa9a21264475830abfd1c2660c77b7d6f74af675670e5aed494b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling wasmtime-internal-core v44.0.0
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling target-lexicon v0.13.0
[INFO] [stderr]    Compiling cpufeatures v0.2.7
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling gimli v0.33.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling object v0.39.0
[INFO] [stderr]    Compiling cc v1.2.41
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling thiserror v1.0.65
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling wast v35.0.2
[INFO] [stderr]    Compiling wasmtime-internal-unwinder v44.0.0
[INFO] [stderr]    Compiling wiggle-macro v44.0.0
[INFO] [stderr]    Compiling bumpalo v3.20.0
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.2
[INFO] [stderr]    Compiling memfd v0.6.5
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling wasmtime-internal-versioned-export-macros v44.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.65
[INFO] [stderr]    Compiling pulley-macros v44.0.0
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling wasmtime-internal-fiber v44.0.0
[INFO] [stderr]    Compiling wasmtime v44.0.0
[INFO] [stderr]    Compiling cobs v0.3.0
[INFO] [stderr]    Compiling witx v0.9.1
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling wasmparser v0.246.1
[INFO] [stderr]    Compiling postcard v1.1.3
[INFO] [stderr]    Compiling cranelift-bitset v0.131.0
[INFO] [stderr]    Compiling cranelift-entity v0.131.0
[INFO] [stderr]    Compiling pulley-interpreter v44.0.0
[INFO] [stderr]    Compiling cranelift-bforest v0.131.0
[INFO] [stderr]    Compiling wasmtime-environ v44.0.0
[INFO] [stderr]    Compiling wiggle-generate v44.0.0
[INFO] [stderr]    Compiling wiggle v44.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 51.02s
[INFO] running `Command { std: "docker" "inspect" "de7d8b709223fa9a21264475830abfd1c2660c77b7d6f74af675670e5aed494b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7d8b709223fa9a21264475830abfd1c2660c77b7d6f74af675670e5aed494b", kill_on_drop: false }`
[INFO] [stdout] de7d8b709223fa9a21264475830abfd1c2660c77b7d6f74af675670e5aed494b
[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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 422af9574eb0c5438fa42dff8476f5f285653e8abacb7aabfcf289a5573140f6
[INFO] running `Command { std: "docker" "start" "-a" "422af9574eb0c5438fa42dff8476f5f285653e8abacb7aabfcf289a5573140f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling wasmtime-internal-core v44.0.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling cranelift-srcgen v0.131.0
[INFO] [stderr]    Compiling allocator-api2 v0.2.20
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling leb128fmt v0.1.0
[INFO] [stderr]    Compiling cranelift-isle v0.131.0
[INFO] [stderr]    Compiling object v0.39.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.131.0
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling cpp_demangle v0.4.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling cranelift-assembler-x64-meta v0.131.0
[INFO] [stderr]    Compiling bumpalo v3.20.0
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling wasmtime-internal-component-util v44.0.0
[INFO] [stderr]    Compiling arbitrary v1.4.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling cc v1.2.41
[INFO] [stderr]    Compiling sha2 v0.10.2
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling zstd-safe v7.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling unicode-width v0.2.0
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling wasmtime-internal-unwinder v44.0.0
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling id-arena v2.3.0
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling gimli v0.33.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling toml_datetime v0.7.3
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling serde_spanned v1.0.3
[INFO] [stderr]    Compiling cranelift-control v0.131.0
[INFO] [stderr]    Compiling wasmtime-internal-component-macro v44.0.0
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling wasmtime-internal-cache v44.0.0
[INFO] [stderr]    Compiling uuid v1.0.0
[INFO] [stderr]    Compiling toml_writer v1.0.4
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling directories-next v2.0.0
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling debugid v0.8.0
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling zstd-sys v2.0.9+zstd.1.5.5
[INFO] [stderr]    Compiling ittapi-sys v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling cranelift-assembler-x64 v0.131.0
[INFO] [stderr]    Compiling toml_parser v1.0.4
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[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-2.0.106/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --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=9b9566596dd59c46 -C extra-filename=-c504bce91f9e0333 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ec2e4e906c3fa39e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-afc954aaaa125544.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-994e2229f72e62d3.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" "422af9574eb0c5438fa42dff8476f5f285653e8abacb7aabfcf289a5573140f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422af9574eb0c5438fa42dff8476f5f285653e8abacb7aabfcf289a5573140f6", kill_on_drop: false }`
[INFO] [stdout] 422af9574eb0c5438fa42dff8476f5f285653e8abacb7aabfcf289a5573140f6
