[INFO] cloning repository https://github.com/iowi479/nums
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iowi479/nums" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiowi479%2Fnums", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiowi479%2Fnums'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f6f3ef96859b85b84d8a7e57c75e04a0ebdfed1
[INFO] documenting iowi479/nums 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%2Fiowi479%2Fnums" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iowi479/nums
[INFO] finished tweaking git repo https://github.com/iowi479/nums
[INFO] tweaked toml for git repo https://github.com/iowi479/nums written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iowi479/nums 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/iowi479/nums 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 18c334c22f23aabd535ce79cff9b24d940bfe644df00800b150a54b1399f2fad
[INFO] running `Command { std: "docker" "start" "-a" "18c334c22f23aabd535ce79cff9b24d940bfe644df00800b150a54b1399f2fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18c334c22f23aabd535ce79cff9b24d940bfe644df00800b150a54b1399f2fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c334c22f23aabd535ce79cff9b24d940bfe644df00800b150a54b1399f2fad", kill_on_drop: false }`
[INFO] [stdout] 18c334c22f23aabd535ce79cff9b24d940bfe644df00800b150a54b1399f2fad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 06fbefa0853e2b29c6303e9832ecb3e022c09d440c551d530203bd18b6c5a976
[INFO] running `Command { std: "docker" "start" "-a" "06fbefa0853e2b29c6303e9832ecb3e022c09d440c551d530203bd18b6c5a976", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.173
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.1
[INFO] [stderr]  Documenting nums v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking nums v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `find_4_distances` is never used
[INFO] [stdout]   --> src/solver.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Solver {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn find_4_distances(&mut self) -> Vec<Vec<u16>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `permutation_from_index` is never used
[INFO] [stdout]   --> src/solver.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn permutation_from_index(mut index: usize) -> [u8; 4] {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_max_midpoint` is never used
[INFO] [stdout]   --> src/solver.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn find_max_midpoint(solutions: &[u16], min: u16, max: u16) -> (u16, u16) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.00s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/nums/index.html and 3 other files
[INFO] running `Command { std: "docker" "inspect" "06fbefa0853e2b29c6303e9832ecb3e022c09d440c551d530203bd18b6c5a976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06fbefa0853e2b29c6303e9832ecb3e022c09d440c551d530203bd18b6c5a976", kill_on_drop: false }`
[INFO] [stdout] 06fbefa0853e2b29c6303e9832ecb3e022c09d440c551d530203bd18b6c5a976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "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] 1efa7d7e2ee136dd7b2433fea495ae045715223a91e035b26a50288f87291c2f
[INFO] running `Command { std: "docker" "start" "-a" "1efa7d7e2ee136dd7b2433fea495ae045715223a91e035b26a50288f87291c2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]  Documenting nums v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/nums/index.html
[INFO] running `Command { std: "docker" "inspect" "1efa7d7e2ee136dd7b2433fea495ae045715223a91e035b26a50288f87291c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1efa7d7e2ee136dd7b2433fea495ae045715223a91e035b26a50288f87291c2f", kill_on_drop: false }`
[INFO] [stdout] 1efa7d7e2ee136dd7b2433fea495ae045715223a91e035b26a50288f87291c2f