[INFO] cloning repository https://github.com/luckychacha/zk-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luckychacha/zk-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluckychacha%2Fzk-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluckychacha%2Fzk-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d2c0fbdaac8455d348040ac7ece6af5e1730c04
[INFO] documenting luckychacha/zk-learning against beta-2025-10-28 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluckychacha%2Fzk-learning" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/luckychacha/zk-learning
[INFO] finished tweaking git repo https://github.com/luckychacha/zk-learning
[INFO] tweaked toml for git repo https://github.com/luckychacha/zk-learning written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luckychacha/zk-learning on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/luckychacha/zk-learning 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bb35b7ab77531d787dcea865f7c466c197ea3c03acd898185bfa22cfb847ae2
[INFO] running `Command { std: "docker" "start" "-a" "4bb35b7ab77531d787dcea865f7c466c197ea3c03acd898185bfa22cfb847ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bb35b7ab77531d787dcea865f7c466c197ea3c03acd898185bfa22cfb847ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb35b7ab77531d787dcea865f7c466c197ea3c03acd898185bfa22cfb847ae2", kill_on_drop: false }`
[INFO] [stdout] 4bb35b7ab77531d787dcea865f7c466c197ea3c03acd898185bfa22cfb847ae2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9e54e6efcf95b6956de5f2a7a3629f69a55616cb18b9210b4073fabe6158234
[INFO] running `Command { std: "docker" "start" "-a" "b9e54e6efcf95b6956de5f2a7a3629f69a55616cb18b9210b4073fabe6158234", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling serde v1.0.175
[INFO] [stderr]    Compiling serde_derive v1.0.175
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking const-oid v0.9.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling winnow v0.5.0
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking gimli v0.27.3
[INFO] [stderr]    Compiling target-lexicon v0.12.10
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]    Compiling rkyv v0.7.42
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking more-asserts v0.2.2
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]     Checking wasmparser v0.83.0
[INFO] [stderr]     Checking byte-slice-cast v1.2.2
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling toml_edit v0.19.14
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]    Compiling corosensei v0.1.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.82.3
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.82.3
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.103
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]     Checking addr2line v0.20.0
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking region v3.0.0
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking cranelift-entity v0.82.3
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking serde_bytes v0.11.12
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking impl-serde v0.4.0
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking cranelift-bforest v0.82.3
[INFO] [stderr]     Checking regalloc v0.0.34
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]     Checking wasm-encoder v0.31.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v2.3.0
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]     Checking ark-std v0.4.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]     Checking wast v62.0.0
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]    Compiling cranelift-codegen v0.82.3
[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-2025-10-28-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.27/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="quote"' --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", "quote", "test", "visit", "visit-mut"))' -C metadata=6ec10968d1df0826 -C extra-filename=-2bd6d7c6eaa2d623 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6aa06c1c82c96ccf.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8c6e24fdc218055f.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-88a20ab10d75ac1b.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" "b9e54e6efcf95b6956de5f2a7a3629f69a55616cb18b9210b4073fabe6158234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9e54e6efcf95b6956de5f2a7a3629f69a55616cb18b9210b4073fabe6158234", kill_on_drop: false }`
[INFO] [stdout] b9e54e6efcf95b6956de5f2a7a3629f69a55616cb18b9210b4073fabe6158234