[INFO] fetching crate wasmic 0.2.0...
[INFO] testing wasmic-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate wasmic 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate wasmic 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate wasmic 0.2.0
[INFO] tweaked toml for crates.io crate wasmic 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasmic 0.2.0 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 wasmic 0.2.0 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] 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] 489fe1b914c9d4173793c42e6af4bc9f3d305c33f9ff6770678a6998a090a9fd
[INFO] running `Command { std: "docker" "start" "-a" "489fe1b914c9d4173793c42e6af4bc9f3d305c33f9ff6770678a6998a090a9fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "489fe1b914c9d4173793c42e6af4bc9f3d305c33f9ff6770678a6998a090a9fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "489fe1b914c9d4173793c42e6af4bc9f3d305c33f9ff6770678a6998a090a9fd", kill_on_drop: false }`
[INFO] [stdout] 489fe1b914c9d4173793c42e6af4bc9f3d305c33f9ff6770678a6998a090a9fd
[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] 6976dd607df2be6a0fb2cf28e60cc0127b571788e5198cd41e70b14bc3905662
[INFO] running `Command { std: "docker" "start" "-a" "6976dd607df2be6a0fb2cf28e60cc0127b571788e5198cd41e70b14bc3905662", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling find-msvc-tools v0.1.2
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling cranelift-srcgen v0.124.1
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling cranelift-assembler-x64-meta v0.124.1
[INFO] [stderr]    Compiling cranelift-isle v0.124.1
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling cranelift-bitset v0.124.1
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.124.1
[INFO] [stderr]    Compiling target-lexicon v0.13.3
[INFO] [stderr]    Compiling ipnet v2.11.0
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling io-lifetimes v2.0.4
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling litemap v0.8.0
[INFO] [stderr]    Compiling wasm-encoder v0.239.0
[INFO] [stderr]    Compiling writeable v0.6.1
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling wasmtime-internal-math v37.0.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling cranelift-control v0.124.1
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling io-extras v0.18.4
[INFO] [stderr]    Compiling wasmparser v0.239.0
[INFO] [stderr]    Compiling leb128fmt v0.1.0
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling ambient-authority v0.0.2
[INFO] [stderr]    Compiling cpp_demangle v0.4.5
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling cap-primitives v3.4.4
[INFO] [stderr]    Compiling cranelift-assembler-x64 v0.124.1
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling wasmtime-internal-component-util v37.0.1
[INFO] [stderr]    Compiling wasmtime-internal-unwinder v37.0.1
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling maybe-owned v0.3.4
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling wasmtime-internal-cache v37.0.1
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling wasmtime-internal-component-macro v37.0.1
[INFO] [stderr]    Compiling cap-std v3.4.4
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling wast v35.0.2
[INFO] [stderr]    Compiling directories-next v2.0.0
[INFO] [stderr]    Compiling debugid v0.8.0
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling ittapi-sys v0.4.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling wast v239.0.0
[INFO] [stderr] error: could not compile `serde_core` (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 serde_core --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_core-1.0.228/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="alloc"' --cfg 'feature="result"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "rc", "result", "std", "unstable"))' -C metadata=deb6ca8b43792116 -C extra-filename=-ea2eb4bd54d5823b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn --check-cfg 'cfg(if_docsrs_then_no_serde_core)' --check-cfg 'cfg(no_core_cstr)' --check-cfg 'cfg(no_core_error)' --check-cfg 'cfg(no_core_net)' --check-cfg 'cfg(no_core_num_saturating)' --check-cfg 'cfg(no_diagnostic_namespace)' --check-cfg 'cfg(no_serde_derive)' --check-cfg 'cfg(no_std_atomic)' --check-cfg 'cfg(no_std_atomic64)' --check-cfg 'cfg(no_target_has_atomic)'` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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="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=bc926b09c160be00 -C extra-filename=-41296471de4bbfb7 --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-0ca382cba16550b0.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-994e2229f72e62d3.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "6976dd607df2be6a0fb2cf28e60cc0127b571788e5198cd41e70b14bc3905662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6976dd607df2be6a0fb2cf28e60cc0127b571788e5198cd41e70b14bc3905662", kill_on_drop: false }`
[INFO] [stdout] 6976dd607df2be6a0fb2cf28e60cc0127b571788e5198cd41e70b14bc3905662
