[INFO] fetching crate cargo-embassy 0.3.4...
[INFO] documenting cargo-embassy-0.3.4 against beta-2025-09-21 for beta-rustdoc-1.91-2
[INFO] extracting crate cargo-embassy 0.3.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate cargo-embassy 0.3.4
[INFO] finished tweaking crates.io crate cargo-embassy 0.3.4
[INFO] tweaked toml for crates.io crate cargo-embassy 0.3.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-embassy 0.3.4 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cargo-embassy 0.3.4 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fc0cb9b262632599ab4cd9ba8aee642eda0eaf1dc29e87a4f817dbf9ed64ade
[INFO] running `Command { std: "docker" "start" "-a" "2fc0cb9b262632599ab4cd9ba8aee642eda0eaf1dc29e87a4f817dbf9ed64ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fc0cb9b262632599ab4cd9ba8aee642eda0eaf1dc29e87a4f817dbf9ed64ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc0cb9b262632599ab4cd9ba8aee642eda0eaf1dc29e87a4f817dbf9ed64ade", kill_on_drop: false }`
[INFO] [stdout] 2fc0cb9b262632599ab4cd9ba8aee642eda0eaf1dc29e87a4f817dbf9ed64ade
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b31717d98ec86286f9c0ca4edfa71ce3688a5b598606f2ea4efea67b772eb0e0
[INFO] running `Command { std: "docker" "start" "-a" "b31717d98ec86286f9c0ca4edfa71ce3688a5b598606f2ea4efea67b772eb0e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]    Compiling thiserror v1.0.62
[INFO] [stderr]    Compiling tinyvec v1.8.0
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling syn v2.0.71
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling cc v1.1.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking event-listener v5.3.1
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]     Checking miniz_oxide v0.7.4
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]     Checking event-listener-strategy v0.5.2
[INFO] [stderr]     Checking parse_int v0.6.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]    Compiling strict v0.2.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking anstyle-query v1.1.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling hidapi v2.6.1
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking zero v0.1.3
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]     Checking xmas-elf v0.9.1
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]     Checking udev v0.8.0
[INFO] [stderr]     Checking rmp v0.8.14
[INFO] [stderr]     Checking async-lock v3.4.0
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking is-docker v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.124
[INFO] [stderr]     Checking clap_lex v0.7.1
[INFO] [stderr]     Checking clap_builder v4.5.9
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking is-wsl v0.4.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking gimli v0.29.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking minimad v0.13.1
[INFO] [stderr]     Checking object v0.35.0
[INFO] [stderr]     Checking ihex v3.0.0
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking svg v0.17.0
[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-2025-09-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.71/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=ce61f610712be18c -C extra-filename=-45102d22f8a1e3c2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-06f382f79c1fcafb.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e6d31f288011a81e.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-772f13ecc3fc189a.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" "b31717d98ec86286f9c0ca4edfa71ce3688a5b598606f2ea4efea67b772eb0e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31717d98ec86286f9c0ca4edfa71ce3688a5b598606f2ea4efea67b772eb0e0", kill_on_drop: false }`
[INFO] [stdout] b31717d98ec86286f9c0ca4edfa71ce3688a5b598606f2ea4efea67b772eb0e0