[INFO] cloning repository https://github.com/tiaohe/xdiff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tiaohe/xdiff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiaohe%2Fxdiff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiaohe%2Fxdiff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfdc2ed6b8c96daad182578ab5048c00780d5594
[INFO] documenting tiaohe/xdiff against beta-2026-01-20 for beta-1.94-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiaohe%2Fxdiff" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tiaohe/xdiff
[INFO] finished tweaking git repo https://github.com/tiaohe/xdiff
[INFO] tweaked toml for git repo https://github.com/tiaohe/xdiff written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tiaohe/xdiff on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tiaohe/xdiff 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] documenting tiaohe/xdiff against beta-2026-01-20 for beta-1.94-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiaohe%2Fxdiff" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tiaohe/xdiff
[INFO] finished tweaking git repo https://github.com/tiaohe/xdiff
[INFO] tweaked toml for git repo https://github.com/tiaohe/xdiff written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tiaohe/xdiff on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tiaohe/xdiff 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded http-serde v1.1.3
[INFO] [stderr]   Downloaded zerovec-derive v0.10.2
[INFO] [stderr]   Downloaded icu_properties v1.5.0
[INFO] [stderr]   Downloaded httparse v1.9.3
[INFO] [stderr]   Downloaded url v2.5.1
[INFO] [stderr]   Downloaded zerovec v0.10.2
[INFO] [stderr]   Downloaded idna v1.0.0
[INFO] [stderr]   Downloaded hyper v0.14.29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e23879740dcc6322c459a5a6f8f4d49fb5a806d994de92d2379f0608cc51bd03
[INFO] running `Command { std: "docker" "start" "-a" "e23879740dcc6322c459a5a6f8f4d49fb5a806d994de92d2379f0608cc51bd03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e23879740dcc6322c459a5a6f8f4d49fb5a806d994de92d2379f0608cc51bd03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23879740dcc6322c459a5a6f8f4d49fb5a806d994de92d2379f0608cc51bd03", kill_on_drop: false }`
[INFO] [stdout] e23879740dcc6322c459a5a6f8f4d49fb5a806d994de92d2379f0608cc51bd03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03dec8ab688b471beefd69a066b698c4fdc641bc03b3cc3dcba06730f4404c66
[INFO] running `Command { std: "docker" "start" "-a" "03dec8ab688b471beefd69a066b698c4fdc641bc03b3cc3dcba06730f4404c66", kill_on_drop: false }`
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling cc v1.0.99
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]     Checking litemap v0.7.3
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking icu_locid_transform_data v1.5.0
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]    Compiling httparse v1.9.3
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking icu_properties_data v1.5.0
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]     Checking icu_normalizer_data v1.5.0
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]     Checking anstyle-query v1.1.0
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]     Checking clap_lex v0.7.1
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking shell-words v1.1.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]     Checking clap_builder v4.5.7
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.4
[INFO] [stderr]    Compiling yoke-derive v0.7.4
[INFO] [stderr]    Compiling zerovec-derive v0.10.2
[INFO] [stderr]    Compiling displaydoc v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling tokio-macros v2.3.0
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]     Checking tokio v1.38.0
[INFO] [stderr]    Compiling clap_derive v4.5.5
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking dialoguer v0.11.0
[INFO] [stderr]     Checking zerofrom v0.1.4
[INFO] [stderr]     Checking yoke v0.7.4
[INFO] [stderr]     Checking zerovec v0.10.2
[INFO] [stderr]     Checking clap v4.5.7
[INFO] [stderr]     Checking tinystr v0.7.6
[INFO] [stderr]     Checking icu_collections v1.5.0
[INFO] [stderr]     Checking icu_locid v1.5.0
[INFO] [stderr]     Checking icu_provider v1.5.0
[INFO] [stderr]     Checking icu_locid_transform v1.5.0
[INFO] [stderr]     Checking icu_properties v1.5.0
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking http-serde v1.1.3
[INFO] [stderr]     Checking icu_normalizer v1.5.0
[INFO] [stderr]     Checking idna v1.0.0
[INFO] [stderr]     Checking url v2.5.1
[INFO] [stderr]     Checking hyper v0.14.29
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]  Documenting xdiff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: Parse: tuple enums are not supported
[INFO] [stdout]   --> src/cli.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, Subcommand, Clone)]
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Subcommand` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `xdiff`
[INFO] running `Command { std: "docker" "inspect" "03dec8ab688b471beefd69a066b698c4fdc641bc03b3cc3dcba06730f4404c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03dec8ab688b471beefd69a066b698c4fdc641bc03b3cc3dcba06730f4404c66", kill_on_drop: false }`
[INFO] [stdout] 03dec8ab688b471beefd69a066b698c4fdc641bc03b3cc3dcba06730f4404c66
