[INFO] fetching crate wasm-obs-agent-lib 0.1.8...
[INFO] documenting wasm-obs-agent-lib-0.1.8 against beta-2026-04-21 for beta-1.96-rustdoc-1
[INFO] extracting crate wasm-obs-agent-lib 0.1.8 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate wasm-obs-agent-lib 0.1.8
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate wasm-obs-agent-lib 0.1.8
[INFO] tweaked toml for crates.io crate wasm-obs-agent-lib 0.1.8 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasm-obs-agent-lib 0.1.8 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 wasm-obs-agent-lib 0.1.8 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] 3f8f756093e95b28676030a456ad86653c4723cee3a0249af3175eb125c69ee2
[INFO] running `Command { std: "docker" "start" "-a" "3f8f756093e95b28676030a456ad86653c4723cee3a0249af3175eb125c69ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f8f756093e95b28676030a456ad86653c4723cee3a0249af3175eb125c69ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f8f756093e95b28676030a456ad86653c4723cee3a0249af3175eb125c69ee2", kill_on_drop: false }`
[INFO] [stdout] 3f8f756093e95b28676030a456ad86653c4723cee3a0249af3175eb125c69ee2
[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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30dc2d0ea774ff671bcfcdcb1a5322e9dbfb54187894bc1cc4692a4cd6d19052
[INFO] running `Command { std: "docker" "start" "-a" "30dc2d0ea774ff671bcfcdcb1a5322e9dbfb54187894bc1cc4692a4cd6d19052", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]     Checking http v1.4.0
[INFO] [stderr]     Checking indexmap v2.12.1
[INFO] [stderr]     Checking socket2 v0.6.1
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]    Compiling cranelift-isle v0.111.5
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.111.5
[INFO] [stderr]    Compiling io-lifetimes v2.0.4
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]     Checking semver v1.0.27
[INFO] [stderr]    Compiling zerocopy v0.8.31
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.111.5
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling io-extras v0.18.4
[INFO] [stderr]     Checking slice-group-by v0.3.1
[INFO] [stderr]     Checking cranelift-control v0.111.5
[INFO] [stderr]     Checking ambient-authority v0.0.2
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling cap-primitives v3.4.5
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]    Compiling cpp_demangle v0.4.5
[INFO] [stderr]     Checking maybe-owned v0.3.4
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]     Checking gimli v0.29.0
[INFO] [stderr]     Checking http-body-util v0.1.3
[INFO] [stderr]    Compiling wasm-encoder v0.243.0
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling cc v1.2.49
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling cap-std v3.4.5
[INFO] [stderr]    Compiling wast v35.0.2
[INFO] [stderr]     Checking wasm-encoder v0.215.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking uuid v1.19.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling wasmtime-component-macro v24.0.5
[INFO] [stderr]    Compiling wasmtime-cache v24.0.5
[INFO] [stderr]     Checking wasmtime-component-util v24.0.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]     Checking debugid v0.8.0
[INFO] [stderr]     Checking wast v243.0.0
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]    Compiling shellexpand v2.1.2
[INFO] [stderr]     Checking wasmtime-asm-macros v24.0.5
[INFO] [stderr]    Compiling wiggle-macro v24.0.5
[INFO] [stderr]    Compiling wasmparser v0.215.0
[INFO] [stderr]     Checking rustls-pki-types v1.13.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking wasmtime-jit-icache-coherence v24.0.5
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking wasmtime-slab v24.0.5
[INFO] [stderr]    Compiling system-interface v0.27.3
[INFO] [stderr]    Compiling cap-fs-ext v3.4.5
[INFO] [stderr]     Checking sptr v0.3.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling cranelift-codegen v0.111.5
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling ittapi-sys v0.4.0
[INFO] [stderr]    Compiling openssl v0.10.75
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]     Checking cap-rand v3.4.5
[INFO] [stderr]     Checking addr2line v0.22.0
[INFO] [stderr]     Checking fs-set-times v0.20.3
[INFO] [stderr]     Checking rustix-linux-procfs v0.1.1
[INFO] [stderr]     Checking memfd v0.6.5
[INFO] [stderr]     Checking ittapi v0.4.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]     Checking cap-time-ext v3.4.5
[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-2.0.111/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=d63903882855da81 -C extra-filename=-fd47c49796d750fc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2f6ea505ff82ebb0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-39de46f98adae129.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-78d3da9d81f84e3e.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" "30dc2d0ea774ff671bcfcdcb1a5322e9dbfb54187894bc1cc4692a4cd6d19052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30dc2d0ea774ff671bcfcdcb1a5322e9dbfb54187894bc1cc4692a4cd6d19052", kill_on_drop: false }`
[INFO] [stdout] 30dc2d0ea774ff671bcfcdcb1a5322e9dbfb54187894bc1cc4692a4cd6d19052