[INFO] fetching crate webcomposer-bin 0.6.5...
[INFO] testing webcomposer-bin-0.6.5 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate webcomposer-bin 0.6.5 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate webcomposer-bin 0.6.5
[INFO] finished tweaking crates.io crate webcomposer-bin 0.6.5
[INFO] tweaked toml for crates.io crate webcomposer-bin 0.6.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate webcomposer-bin 0.6.5 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 webcomposer-bin 0.6.5 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 946c86e5b4bb4a9073cff4b9f994f03736524eda69bd644ad53e29e59fe228f7
[INFO] running `Command { std: "docker" "start" "-a" "946c86e5b4bb4a9073cff4b9f994f03736524eda69bd644ad53e29e59fe228f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "946c86e5b4bb4a9073cff4b9f994f03736524eda69bd644ad53e29e59fe228f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "946c86e5b4bb4a9073cff4b9f994f03736524eda69bd644ad53e29e59fe228f7", kill_on_drop: false }`
[INFO] [stdout] 946c86e5b4bb4a9073cff4b9f994f03736524eda69bd644ad53e29e59fe228f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e9058a97b6699c26b1d05365900b7b01216332a5a42b94a4268388d68c7de544
[INFO] running `Command { std: "docker" "start" "-a" "e9058a97b6699c26b1d05365900b7b01216332a5a42b94a4268388d68c7de544", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.23
[INFO] [stderr]    Compiling libc v0.2.181
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling bytes v1.11.0
[INFO] [stderr]    Compiling zerocopy v0.8.36
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling rand_core v0.10.0
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.25
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling const-oid v0.10.2
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling phf_shared v0.13.1
[INFO] [stderr]    Compiling unicode-properties v0.1.4
[INFO] [stderr]    Compiling base64ct v1.8.3
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling phf v0.13.1
[INFO] [stderr]    Compiling stringprep v0.1.5
[INFO] [stderr]    Compiling pem-rfc7468 v1.0.0
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling phf v0.11.3
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.115
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling hybrid-array v0.4.7
[INFO] [stderr]    Compiling getrandom v0.4.1
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling cc v1.2.55
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling socket2 v0.6.2
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling web_atoms v0.1.3
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling block-buffer v0.11.0
[INFO] [stderr]    Compiling crypto-common v0.2.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling pest v2.8.3
[INFO] [stderr]    Compiling phf_generator v0.13.1
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling libsqlite3-sys v0.36.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr] error: could not compile `zerocopy` (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 zerocopy --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-0.8.36/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 -C debuginfo=2 --cfg 'feature="simd"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("__internal_use_only_features_that_work_on_stable", "alloc", "derive", "float-nightly", "simd", "simd-nightly", "std", "zerocopy-derive"))' -C metadata=ea04dbd96ae58910 -C extra-filename=-192d22fc566d02d8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn --check-cfg 'cfg(no_zerocopy_simd_x86_avx12_1_89_0)' --check-cfg 'cfg(rust, values("1.89.0"))' --check-cfg 'cfg(no_zerocopy_core_error_1_81_0)' --check-cfg 'cfg(rust, values("1.81.0"))' --check-cfg 'cfg(no_zerocopy_diagnostic_on_unimplemented_1_78_0)' --check-cfg 'cfg(rust, values("1.78.0"))' --check-cfg 'cfg(no_zerocopy_generic_bounds_in_const_fn_1_61_0)' --check-cfg 'cfg(rust, values("1.61.0"))' --check-cfg 'cfg(no_zerocopy_target_has_atomics_1_60_0)' --check-cfg 'cfg(rust, values("1.60.0"))' --check-cfg 'cfg(no_zerocopy_aarch64_simd_1_59_0)' --check-cfg 'cfg(rust, values("1.59.0"))' --check-cfg 'cfg(no_zerocopy_panic_in_const_and_vec_try_reserve_1_57_0)' --check-cfg 'cfg(rust, values("1.57.0"))' --check-cfg 'cfg(doc_cfg)' --check-cfg 'cfg(kani)' --check-cfg 'cfg(__ZEROCOPY_INTERNAL_USE_ONLY_NIGHTLY_FEATURES_IN_TESTS)' --check-cfg 'cfg(coverage_nightly)'` (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-2.0.115/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=6f9a08d451c742e7 -C extra-filename=-387f63c5c4c09ccc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ae5d2c5c31a289cf.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-942cf0be62da003c.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-114df360ce5d389d.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "e9058a97b6699c26b1d05365900b7b01216332a5a42b94a4268388d68c7de544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9058a97b6699c26b1d05365900b7b01216332a5a42b94a4268388d68c7de544", kill_on_drop: false }`
[INFO] [stdout] e9058a97b6699c26b1d05365900b7b01216332a5a42b94a4268388d68c7de544
