[INFO] cloning repository https://github.com/ChenRuiwei/least
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChenRuiwei/least" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChenRuiwei%2Fleast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChenRuiwei%2Fleast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad6a9006eab57a1fb280bcfe01ae26a8dee19a80
[INFO] documenting ChenRuiwei/least 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%2FChenRuiwei%2Fleast" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ChenRuiwei/least
[INFO] finished tweaking git repo https://github.com/ChenRuiwei/least
[INFO] tweaked toml for git repo https://github.com/ChenRuiwei/least written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ChenRuiwei/least 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/ChenRuiwei/least 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 18fd830942b86c6771db522c48c14cc44bd37c6f567a4058aca12b6ed47eb218
[INFO] running `Command { std: "docker" "start" "-a" "18fd830942b86c6771db522c48c14cc44bd37c6f567a4058aca12b6ed47eb218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18fd830942b86c6771db522c48c14cc44bd37c6f567a4058aca12b6ed47eb218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18fd830942b86c6771db522c48c14cc44bd37c6f567a4058aca12b6ed47eb218", kill_on_drop: false }`
[INFO] [stdout] 18fd830942b86c6771db522c48c14cc44bd37c6f567a4058aca12b6ed47eb218
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3be9df1be4d282e9ff297668758eef80c1bce26be0fc4c7d52f3ab1395df4a65
[INFO] running `Command { std: "docker" "start" "-a" "3be9df1be4d282e9ff297668758eef80c1bce26be0fc4c7d52f3ab1395df4a65", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]    Compiling owo-colors v4.2.1
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling convert_case v0.7.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking anstyle-query v1.1.3
[INFO] [stderr]     Checking hashbrown v0.15.3
[INFO] [stderr]     Checking anstream v0.6.19
[INFO] [stderr]     Checking miniz_oxide v0.8.8
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking object v0.36.7
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]     Checking clap_builder v4.5.39
[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]     Checking lru v0.12.5
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking signal-hook-mio v0.2.4
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking unicode-width v0.2.0
[INFO] [stderr]     Checking directories v6.0.0
[INFO] [stderr]     Checking content_inspector v0.2.4
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking crossterm v0.28.1
[INFO] [stderr]     Checking unicode-truncate v1.1.0
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]    Compiling tracing-attributes v0.1.29
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]     Checking crossterm v0.29.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking clap v4.5.39
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling instability v0.3.7
[INFO] [stderr]     Checking tracing-error v0.2.1
[INFO] [stderr]     Checking color-spantrace v0.3.0
[INFO] [stderr]     Checking ratatui v0.29.0
[INFO] [stderr]     Checking color-eyre v0.6.5
[INFO] [stderr]     Checking clircle v0.6.1
[INFO] [stderr]  Documenting least v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_internals)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_internals` is internal to the compiler or standard library
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_internals)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `least`
[INFO] running `Command { std: "docker" "inspect" "3be9df1be4d282e9ff297668758eef80c1bce26be0fc4c7d52f3ab1395df4a65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3be9df1be4d282e9ff297668758eef80c1bce26be0fc4c7d52f3ab1395df4a65", kill_on_drop: false }`
[INFO] [stdout] 3be9df1be4d282e9ff297668758eef80c1bce26be0fc4c7d52f3ab1395df4a65
