[INFO] fetching crate rustdown 0.0.1...
[INFO] testing rustdown-0.0.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rustdown 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rustdown 0.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rustdown 0.0.1
[INFO] tweaked toml for crates.io crate rustdown 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustdown 0.0.1 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 crates.io crate rustdown 0.0.1 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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5614fd3222250f450dc32a293e8872a33593aab0e9ea4bc36e4fcb900db5c62d
[INFO] running `Command { std: "docker" "start" "-a" "5614fd3222250f450dc32a293e8872a33593aab0e9ea4bc36e4fcb900db5c62d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5614fd3222250f450dc32a293e8872a33593aab0e9ea4bc36e4fcb900db5c62d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5614fd3222250f450dc32a293e8872a33593aab0e9ea4bc36e4fcb900db5c62d", kill_on_drop: false }`
[INFO] [stdout] 5614fd3222250f450dc32a293e8872a33593aab0e9ea4bc36e4fcb900db5c62d
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1035866f648fe32eeb555fec18b47af2655655f0fcad28a8b229aec0f6ecef14
[INFO] running `Command { std: "docker" "start" "-a" "1035866f648fe32eeb555fec18b47af2655655f0fcad28a8b229aec0f6ecef14", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling anstream v0.6.20
[INFO] [stderr]    Compiling pathdiff v0.2.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling clap_builder v4.5.47
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling clap v4.5.47
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling rustdoc-types v0.38.0
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling rustdown v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.54s
[INFO] running `Command { std: "docker" "inspect" "1035866f648fe32eeb555fec18b47af2655655f0fcad28a8b229aec0f6ecef14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1035866f648fe32eeb555fec18b47af2655655f0fcad28a8b229aec0f6ecef14", kill_on_drop: false }`
[INFO] [stdout] 1035866f648fe32eeb555fec18b47af2655655f0fcad28a8b229aec0f6ecef14
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da357677f09c5aab3d5317b602b03e025de9f3da27837b3fa31694d70e4b5e7b
[INFO] running `Command { std: "docker" "start" "-a" "da357677f09c5aab3d5317b602b03e025de9f3da27837b3fa31694d70e4b5e7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling tempfile v3.22.0
[INFO] [stderr]    Compiling rustdown v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: arguments to this function are incorrect
[INFO] [stdout]   --> examples/find-refs.rs:80:24
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let rustdoc_json = generate_rustdoc_json(
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: expected `&Path`, found `Option<&PathBuf>`
[INFO] [stdout]   --> examples/find-refs.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         Some(&crate_path.join("Cargo.toml")), // manifest_path
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: expected reference `&std::path::Path`
[INFO] [stdout]                    found enum `Option<&PathBuf>`
[INFO] [stdout] note: expected `&RootCrate`, found `Option<_>`
[INFO] [stdout]   --> examples/find-refs.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         None,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    = note: expected reference `&RootCrate`
[INFO] [stdout]                    found enum `Option<_>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/rustdoc.rs:8:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub fn generate_rustdoc_json(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustdown` (example "find-refs") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "da357677f09c5aab3d5317b602b03e025de9f3da27837b3fa31694d70e4b5e7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da357677f09c5aab3d5317b602b03e025de9f3da27837b3fa31694d70e4b5e7b", kill_on_drop: false }`
[INFO] [stdout] da357677f09c5aab3d5317b602b03e025de9f3da27837b3fa31694d70e4b5e7b