[INFO] cloning repository https://github.com/liakhovitch/langton-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liakhovitch/langton-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliakhovitch%2Flangton-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliakhovitch%2Flangton-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9bd2faeda1b128265ddc1bbd74f5c55e62e788b3
[INFO] testing liakhovitch/langton-rs against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliakhovitch%2Flangton-rs" "/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/liakhovitch/langton-rs
[INFO] finished tweaking git repo https://github.com/liakhovitch/langton-rs
[INFO] tweaked toml for git repo https://github.com/liakhovitch/langton-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/liakhovitch/langton-rs on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/liakhovitch/langton-rs 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4a9a737bd7fb72bd079e9100fc00dc0184cae41660938e5326ab3240a4055a5
[INFO] running `Command { std: "docker" "start" "-a" "f4a9a737bd7fb72bd079e9100fc00dc0184cae41660938e5326ab3240a4055a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4a9a737bd7fb72bd079e9100fc00dc0184cae41660938e5326ab3240a4055a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4a9a737bd7fb72bd079e9100fc00dc0184cae41660938e5326ab3240a4055a5", kill_on_drop: false }`
[INFO] [stdout] f4a9a737bd7fb72bd079e9100fc00dc0184cae41660938e5326ab3240a4055a5
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83d7f78b0a32faf39e1965e6b13d02a8aee0656a4e3013972178ef954898fe6a
[INFO] running `Command { std: "docker" "start" "-a" "83d7f78b0a32faf39e1965e6b13d02a8aee0656a4e3013972178ef954898fe6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling once_cell v1.12.0
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling ash v0.34.0+1.2.203
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling wgpu-core v0.12.2
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[INFO] [stderr]    Compiling profiling v1.0.6
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[INFO] [stderr]    Compiling regex-syntax v0.6.26
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[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling nix v0.22.3
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling memmap2 v0.3.1
[INFO] [stderr]    Compiling mio v0.8.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling gpu-descriptor v0.2.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling ultraviolet v0.8.1
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling naga v0.8.5
[INFO] [stderr]    Compiling wayland-commons v0.29.4
[INFO] [stderr]    Compiling calloop v0.9.3
[INFO] [stderr]    Compiling wayland-cursor v0.29.4
[INFO] [stderr]    Compiling wgpu-hal v0.12.5
[INFO] [stderr]    Compiling wgpu v0.12.0
[INFO] [stderr]    Compiling pixels v0.9.0
[INFO] [stderr]    Compiling winit_input_helper v0.12.0
[INFO] [stderr]    Compiling langton v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:247:55
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 SHOW_ANTS && self.ants.iter().any(|j| (j.x as usize == x && j.y as usize == y))
[INFO] [stdout]     |                                                       ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 247 -                 SHOW_ANTS && self.ants.iter().any(|j| (j.x as usize == x && j.y as usize == y))
[INFO] [stdout] 247 +                 SHOW_ANTS && self.ants.iter().any(|j| j.x as usize == x && j.y as usize == y)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLIP_MAX` is never used
[INFO] [stdout]   --> src/main.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const FLIP_MAX: u64 = 60000;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flip_count` is never read
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct World {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 42 |     flip_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `reverse` is never used
[INFO] [stdout]    --> src/main.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl Ant {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 121 |     fn reverse(&mut self){
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 03s
[INFO] running `Command { std: "docker" "inspect" "83d7f78b0a32faf39e1965e6b13d02a8aee0656a4e3013972178ef954898fe6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d7f78b0a32faf39e1965e6b13d02a8aee0656a4e3013972178ef954898fe6a", kill_on_drop: false }`
[INFO] [stdout] 83d7f78b0a32faf39e1965e6b13d02a8aee0656a4e3013972178ef954898fe6a
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53d37c3fe6e985edca2e7424603e852e8b5430eb553b7c6e230ddf5fa0510e3e
[INFO] running `Command { std: "docker" "start" "-a" "53d37c3fe6e985edca2e7424603e852e8b5430eb553b7c6e230ddf5fa0510e3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling langton v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:247:55
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 SHOW_ANTS && self.ants.iter().any(|j| (j.x as usize == x && j.y as usize == y))
[INFO] [stdout]     |                                                       ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 247 -                 SHOW_ANTS && self.ants.iter().any(|j| (j.x as usize == x && j.y as usize == y))
[INFO] [stdout] 247 +                 SHOW_ANTS && self.ants.iter().any(|j| j.x as usize == x && j.y as usize == y)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLIP_MAX` is never used
[INFO] [stdout]   --> src/main.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const FLIP_MAX: u64 = 60000;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flip_count` is never read
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct World {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 42 |     flip_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `reverse` is never used
[INFO] [stdout]    --> src/main.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl Ant {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 121 |     fn reverse(&mut self){
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "53d37c3fe6e985edca2e7424603e852e8b5430eb553b7c6e230ddf5fa0510e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53d37c3fe6e985edca2e7424603e852e8b5430eb553b7c6e230ddf5fa0510e3e", kill_on_drop: false }`
[INFO] [stdout] 53d37c3fe6e985edca2e7424603e852e8b5430eb553b7c6e230ddf5fa0510e3e
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74448905fb020cb297a6b90b6bc6d2669a74fde669dbb208d6087602e35d2b55
[INFO] running `Command { std: "docker" "start" "-a" "74448905fb020cb297a6b90b6bc6d2669a74fde669dbb208d6087602e35d2b55", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/main.rs:247:55
[INFO] [stderr]     |
[INFO] [stderr] 247 |                 SHOW_ANTS && self.ants.iter().any(|j| (j.x as usize == x && j.y as usize == y))
[INFO] [stderr]     |                                                       ^                                      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 247 -                 SHOW_ANTS && self.ants.iter().any(|j| (j.x as usize == x && j.y as usize == y))
[INFO] [stderr] 247 +                 SHOW_ANTS && self.ants.iter().any(|j| j.x as usize == x && j.y as usize == y)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: constant `FLIP_MAX` is never used
[INFO] [stderr]   --> src/main.rs:24:7
[INFO] [stderr]    |
[INFO] [stderr] 24 | const FLIP_MAX: u64 = 60000;
[INFO] [stderr]    |       ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `flip_count` is never read
[INFO] [stderr]   --> src/main.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | struct World {
[INFO] [stderr]    |        ----- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 42 |     flip_count: u64,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `reverse` is never used
[INFO] [stderr]    --> src/main.rs:121:8
[INFO] [stderr]     |
[INFO] [stderr] 103 | impl Ant {
[INFO] [stderr]     | -------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 121 |     fn reverse(&mut self){
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `langton` (bin "langton" test) generated 4 warnings (run `cargo fix --bin "langton" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/langton-102aa00bdd18c66e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "74448905fb020cb297a6b90b6bc6d2669a74fde669dbb208d6087602e35d2b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74448905fb020cb297a6b90b6bc6d2669a74fde669dbb208d6087602e35d2b55", kill_on_drop: false }`
[INFO] [stdout] 74448905fb020cb297a6b90b6bc6d2669a74fde669dbb208d6087602e35d2b55