[INFO] fetching crate yummy-delta 0.0.8...
[INFO] documenting yummy-delta-0.0.8 against beta-2023-05-30 for beta-1.71-rustdoc-1
[INFO] extracting crate yummy-delta 0.0.8 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate yummy-delta 0.0.8 on toolchain beta-2023-05-30
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-05-30" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yummy-delta 0.0.8
[INFO] finished tweaking crates.io crate yummy-delta 0.0.8
[INFO] tweaked toml for crates.io crate yummy-delta 0.0.8 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-05-30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-05-30" "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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-05-30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32d07a2c6bf1e7601c0ef167620df9076ad6b0abbcfaa192379d8a2c2b0f2e47
[INFO] running `Command { std: "docker" "start" "-a" "32d07a2c6bf1e7601c0ef167620df9076ad6b0abbcfaa192379d8a2c2b0f2e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32d07a2c6bf1e7601c0ef167620df9076ad6b0abbcfaa192379d8a2c2b0f2e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32d07a2c6bf1e7601c0ef167620df9076ad6b0abbcfaa192379d8a2c2b0f2e47", kill_on_drop: false }`
[INFO] [stdout] 32d07a2c6bf1e7601c0ef167620df9076ad6b0abbcfaa192379d8a2c2b0f2e47
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-05-30" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ad1e5e366d6aec797d731e0bf3aff56a5cba59bcc9215835b75505de6e4106d
[INFO] running `Command { std: "docker" "start" "-a" "5ad1e5e366d6aec797d731e0bf3aff56a5cba59bcc9215835b75505de6e4106d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]     Checking once_cell v1.17.2
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking arrow-schema v33.0.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]     Checking lexical-write-integer v0.8.5
[INFO] [stderr]     Checking lexical-parse-integer v0.8.6
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking lexical-write-float v0.8.5
[INFO] [stderr]     Checking lexical-parse-float v0.8.5
[INFO] [stderr]    Compiling openssl v0.10.54
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]    Compiling rustls v0.21.1
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking half v2.2.1
[INFO] [stderr]     Checking lexical-core v0.8.5
[INFO] [stderr]    Compiling zstd-safe v6.0.5+zstd.1.5.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]    Compiling const-random-macro v0.1.15
[INFO] [stderr]    Compiling flatbuffers v23.5.26
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking brotli-decompressor v2.3.4
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking const-random v0.1.15
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking regex v1.8.3
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking rustls-pemfile v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling openssl-sys v0.9.88
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling zstd-sys v2.0.8+zstd.1.5.5
[INFO] [stderr]    Compiling lz4-sys v1.9.4
[INFO] [stderr]     Checking arrow-buffer v33.0.0
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking brotli v3.3.4
[INFO] [stderr]     Checking ipnet v2.7.2
[INFO] [stderr]    Compiling snap v1.1.0
[INFO] [stderr]     Checking arrow-data v33.0.0
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking ordered-float v2.10.0
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]    Compiling target-lexicon v0.12.7
[INFO] [stderr]     Checking integer-encoding v3.0.4
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking thrift v0.17.0
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]    Compiling seq-macro v0.3.3
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]     Checking arrow-buffer v28.0.0
[INFO] [stderr]     Checking arrow-schema v28.0.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling lzma-sys v0.1.20
[INFO] [stderr]    Compiling blake3 v1.3.3
[INFO] [stderr]     Checking arrow-data v28.0.0
[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-2023-05-30-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-2.0.18/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=0 --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="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=b8a9e20094369c75 -C extra-filename=-b8a9e20094369c75 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ec655822eabb2c5c.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-f12378803acec7b5.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b23f8ffaf8ff0571.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" "5ad1e5e366d6aec797d731e0bf3aff56a5cba59bcc9215835b75505de6e4106d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad1e5e366d6aec797d731e0bf3aff56a5cba59bcc9215835b75505de6e4106d", kill_on_drop: false }`
[INFO] [stdout] 5ad1e5e366d6aec797d731e0bf3aff56a5cba59bcc9215835b75505de6e4106d