[INFO] fetching crate kucoin_arbitrage 0.0.14...
[INFO] documenting kucoin_arbitrage-0.0.14 against beta-2026-04-21 for beta-1.96-rustdoc-1
[INFO] extracting crate kucoin_arbitrage 0.0.14 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate kucoin_arbitrage 0.0.14
[INFO] finished tweaking crates.io crate kucoin_arbitrage 0.0.14
[INFO] tweaked toml for crates.io crate kucoin_arbitrage 0.0.14 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kucoin_arbitrage 0.0.14 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 kucoin_arbitrage 0.0.14 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 97e23335c520e3f203bea73b8b1a3dc1aa07b892c86233115ce53efc4a4fa412
[INFO] running `Command { std: "docker" "start" "-a" "97e23335c520e3f203bea73b8b1a3dc1aa07b892c86233115ce53efc4a4fa412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97e23335c520e3f203bea73b8b1a3dc1aa07b892c86233115ce53efc4a4fa412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97e23335c520e3f203bea73b8b1a3dc1aa07b892c86233115ce53efc4a4fa412", kill_on_drop: false }`
[INFO] [stdout] 97e23335c520e3f203bea73b8b1a3dc1aa07b892c86233115ce53efc4a4fa412
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 13991466f4ee03794081c3fa5e7f2ff51560be160a50a10ec130f1c455f19a34
[INFO] running `Command { std: "docker" "start" "-a" "13991466f4ee03794081c3fa5e7f2ff51560be160a50a10ec130f1c455f19a34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling futures-util v0.3.28
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[INFO] [stderr]     Checking generic-array v0.12.4
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[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling unicode-xid v0.2.4
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[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
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[INFO] [stderr]     Checking aho-corasick v1.1.2
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[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]     Checking reqwest v0.11.22
[INFO] [stderr]     Checking kucoin_api v1.4.10
[INFO] [stderr]  Documenting kucoin_arbitrage v0.0.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking kucoin_arbitrage v0.0.14 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `kucoin_arbitrage`
[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/rustdoc --edition=2021 --crate-type bin --crate-name sample_monitor_channel src/bin/sample_monitor_channel.rs -o /opt/rustwide/target/doc --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -C metadata=3a0c589a6d6e5192 -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-69c8f8e42513483c.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-249fcb9c286ebf54.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-80e04d72c3f0876b.rmeta --extern fern=/opt/rustwide/target/debug/deps/libfern-9ba5460a75116627.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-ff62db7fd68cab3b.rmeta --extern kucoin_api=/opt/rustwide/target/debug/deps/libkucoin_api-4cca44bf8c0c5170.rmeta --extern kucoin_arbitrage=/opt/rustwide/target/debug/deps/libkucoin_arbitrage-a092e617b3331c15.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-2d02358d3ed43e2b.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-01201af9b4955e27.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-a7fb84fc4b7cdd0f.rmeta --extern ordered_float=/opt/rustwide/target/debug/deps/libordered_float-940ce1649cd9736d.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-ed96f757b83efabf.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-08b588cb7d061614.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-f05c51a4a4c30cc0.so --extern tokio=/opt/rustwide/target/debug/deps/libtokio-1d25603e7db40d79.rmeta --extern tokio_signal=/opt/rustwide/target/debug/deps/libtokio_signal-15800de129329386.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-e90720053d92179c.rmeta --document-private-items '-Arustdoc::private-intra-doc-links' --cap-lints=warn --crate-version 0.0.14` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "13991466f4ee03794081c3fa5e7f2ff51560be160a50a10ec130f1c455f19a34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13991466f4ee03794081c3fa5e7f2ff51560be160a50a10ec130f1c455f19a34", kill_on_drop: false }`
[INFO] [stdout] 13991466f4ee03794081c3fa5e7f2ff51560be160a50a10ec130f1c455f19a34