[INFO] fetching crate checkleft 0.1.0-alpha.8...
[INFO] documenting checkleft-0.1.0-alpha.8 against beta-2026-04-21 for beta-1.96-rustdoc-1
[INFO] extracting crate checkleft 0.1.0-alpha.8 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate checkleft 0.1.0-alpha.8
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate checkleft 0.1.0-alpha.8
[INFO] tweaked toml for crates.io crate checkleft 0.1.0-alpha.8 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate checkleft 0.1.0-alpha.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 checkleft 0.1.0-alpha.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] 6e6fc582dd0169e460c49f6c3f81a12b6bd81de7dc8b4334800f4206f72f6274
[INFO] running `Command { std: "docker" "start" "-a" "6e6fc582dd0169e460c49f6c3f81a12b6bd81de7dc8b4334800f4206f72f6274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e6fc582dd0169e460c49f6c3f81a12b6bd81de7dc8b4334800f4206f72f6274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e6fc582dd0169e460c49f6c3f81a12b6bd81de7dc8b4334800f4206f72f6274", kill_on_drop: false }`
[INFO] [stdout] 6e6fc582dd0169e460c49f6c3f81a12b6bd81de7dc8b4334800f4206f72f6274
[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] 029f18c2bfb664de31efcb7a68731f5ba1b099cc16d34a680426a3d928045a10
[INFO] running `Command { std: "docker" "start" "-a" "029f18c2bfb664de31efcb7a68731f5ba1b099cc16d34a680426a3d928045a10", kill_on_drop: false }`
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[INFO] [stderr]  Documenting checkleft v0.1.0-alpha.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 53s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/checkleft/index.html
[INFO] running `Command { std: "docker" "inspect" "029f18c2bfb664de31efcb7a68731f5ba1b099cc16d34a680426a3d928045a10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "029f18c2bfb664de31efcb7a68731f5ba1b099cc16d34a680426a3d928045a10", kill_on_drop: false }`
[INFO] [stdout] 029f18c2bfb664de31efcb7a68731f5ba1b099cc16d34a680426a3d928045a10
[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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 185c6436802cb57540f105ed7c76a56aecd78638f3d29cc52e28a9ec5834b6ac
[INFO] running `Command { std: "docker" "start" "-a" "185c6436802cb57540f105ed7c76a56aecd78638f3d29cc52e28a9ec5834b6ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]     Checking wasmtime-internal-core v42.0.1
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[INFO] [stderr]     Checking wasmtime-internal-jit-icache-coherence v42.0.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
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[INFO] [stderr]    Compiling yoke-derive v0.8.1
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[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling pulley-macros v42.0.1
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[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling wasmtime-internal-versioned-export-macros v42.0.1
[INFO] [stderr]    Compiling clap_derive v4.5.55
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling pulley-interpreter v42.0.1
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[INFO] [stderr]  Documenting checkleft v0.1.0-alpha.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 59.85s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/checkleft/index.html
[INFO] running `Command { std: "docker" "inspect" "185c6436802cb57540f105ed7c76a56aecd78638f3d29cc52e28a9ec5834b6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "185c6436802cb57540f105ed7c76a56aecd78638f3d29cc52e28a9ec5834b6ac", kill_on_drop: false }`
[INFO] [stdout] 185c6436802cb57540f105ed7c76a56aecd78638f3d29cc52e28a9ec5834b6ac