[INFO] cloning repository https://github.com/BenjaminBrienen/cracker_barrel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BenjaminBrienen/cracker_barrel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenjaminBrienen%2Fcracker_barrel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenjaminBrienen%2Fcracker_barrel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0a45bba13ae2de6d6adfb4c7c5dae98cc54ceb4
[INFO] documenting BenjaminBrienen/cracker_barrel 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%2FBenjaminBrienen%2Fcracker_barrel" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BenjaminBrienen/cracker_barrel
[INFO] finished tweaking git repo https://github.com/BenjaminBrienen/cracker_barrel
[INFO] tweaked toml for git repo https://github.com/BenjaminBrienen/cracker_barrel written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BenjaminBrienen/cracker_barrel 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/BenjaminBrienen/cracker_barrel 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] 2760da2eec92b6dad2f2f4c988bad4ddf8fa6354936e5b66d685f26b6379b253
[INFO] running `Command { std: "docker" "start" "-a" "2760da2eec92b6dad2f2f4c988bad4ddf8fa6354936e5b66d685f26b6379b253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2760da2eec92b6dad2f2f4c988bad4ddf8fa6354936e5b66d685f26b6379b253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2760da2eec92b6dad2f2f4c988bad4ddf8fa6354936e5b66d685f26b6379b253", kill_on_drop: false }`
[INFO] [stdout] 2760da2eec92b6dad2f2f4c988bad4ddf8fa6354936e5b66d685f26b6379b253
[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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4b4ccf9340a6a74f22a9b6a904eca70328a145563cb49a3f407e3ed3d342dfa
[INFO] running `Command { std: "docker" "start" "-a" "d4b4ccf9340a6a74f22a9b6a904eca70328a145563cb49a3f407e3ed3d342dfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling test-case-core v3.1.0
[INFO] [stderr]    Compiling test-case-macros v3.1.0
[INFO] [stderr]     Checking test-case v3.1.0
[INFO] [stderr]  Documenting cracker_barrel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/board.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     if let Some(middle) = middle.check_bounds::<usize>(&min, &max)
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/board.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     && let Some(end) = end.check_bounds::<usize>(&min, &max)
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/board.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     && let Some(start) = start.check_bounds::<usize>(&min, &max)
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/position.rs:50:6
[INFO] [stdout]    |
[INFO] [stdout] 50 |         if let Ok(row) = row
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/position.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |         && let Ok(column) = column
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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(exact_size_is_empty)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `cracker_barrel`
[INFO] running `Command { std: "docker" "inspect" "d4b4ccf9340a6a74f22a9b6a904eca70328a145563cb49a3f407e3ed3d342dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b4ccf9340a6a74f22a9b6a904eca70328a145563cb49a3f407e3ed3d342dfa", kill_on_drop: false }`
[INFO] [stdout] d4b4ccf9340a6a74f22a9b6a904eca70328a145563cb49a3f407e3ed3d342dfa
