[INFO] cloning repository https://github.com/pixlark/rust-2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pixlark/rust-2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpixlark%2Frust-2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpixlark%2Frust-2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c4cad366c974d5471e6db2a1b727b8c9133b342
[INFO] checking pixlark/rust-2048 against try#09eeb2bacb9b40b2ed1d47f03177442c0632cda1 for pr-157710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpixlark%2Frust-2048" "/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/pixlark/rust-2048
[INFO] finished tweaking git repo https://github.com/pixlark/rust-2048
[INFO] tweaked toml for git repo https://github.com/pixlark/rust-2048 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pixlark/rust-2048 on toolchain 09eeb2bacb9b40b2ed1d47f03177442c0632cda1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pixlark/rust-2048 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" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `game-2048` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 05d0d90bc6e0141f38b55165d41ce347db83d3c2c95bf21050a7738f17af7c14
[INFO] running `Command { std: "docker" "start" "05d0d90bc6e0141f38b55165d41ce347db83d3c2c95bf21050a7738f17af7c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "05d0d90bc6e0141f38b55165d41ce347db83d3c2c95bf21050a7738f17af7c14" "/opt/rustwide/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05d0d90bc6e0141f38b55165d41ce347db83d3c2c95bf21050a7738f17af7c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "05d0d90bc6e0141f38b55165d41ce347db83d3c2c95bf21050a7738f17af7c14" "/opt/rustwide/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `game-2048` (manifest) generated 1 warning
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]    Compiling game-2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]     Checking rand_isaac v0.1.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking rand v0.6.1
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stdout] warning: unused import: `sdl2::video::WindowContext`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use sdl2::video::WindowContext;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `v2` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct v2 {
[INFO] [stdout]    |        ^^ help: convert the identifier to upper camel case (notice the capitalization): `V2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::video::WindowContext`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use sdl2::video::WindowContext;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `v2` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct v2 {
[INFO] [stdout]    |        ^^ help: convert the identifier to upper camel case (notice the capitalization): `V2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::choose`: use SliceRandom::choose instead
[INFO] [stdout]    --> src/main.rs:267:32
[INFO] [stdout]     |
[INFO] [stdout] 267 |         let choice: u64 = *rng.choose(&[2, 4]).unwrap();
[INFO] [stdout]     |                                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 |     let mut state_stack: Vec<Box<dyn GameState>> = Vec::new();
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state_stack`
[INFO] [stdout]    --> src/main.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 |     let mut state_stack: Vec<Box<dyn GameState>> = Vec::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_state_stack`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_fitness` is never used
[INFO] [stdout]    --> src/main.rs:270:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl Grid {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 270 |     fn get_fitness(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `event`, `update`, and `render` are never used
[INFO] [stdout]    --> src/main.rs:296:8
[INFO] [stdout]     |
[INFO] [stdout] 295 | trait GameState {
[INFO] [stdout]     |       --------- methods in this trait
[INFO] [stdout] 296 |     fn event(&mut self, event: Event);
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 297 |     fn update(&mut self);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 298 |     fn render(&mut self, canvas: &mut WindowCanvas, font: &ttf::Font);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PlayingState` is never constructed
[INFO] [stdout]    --> src/main.rs:301:8
[INFO] [stdout]     |
[INFO] [stdout] 301 | struct PlayingState {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Stack` is never used
[INFO] [stdout]    --> src/main.rs:306:7
[INFO] [stdout]     |
[INFO] [stdout] 306 | trait Stack<T> {
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `color_map` should have an upper case name
[INFO] [stdout]   --> src/main.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     static ref color_map: HashMap<u64, Color> = {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 27 -     static ref color_map: HashMap<u64, Color> = {
[INFO] [stdout] 27 +     static ref COLOR_MAP: HashMap<u64, Color> = {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:159:21
[INFO] [stdout]     |
[INFO] [stdout] 159 | /                     canvas.copy(
[INFO] [stdout] 160 | |                         &texture,
[INFO] [stdout] 161 | |                         None,
[INFO] [stdout] 162 | |                         Some(Rect::new(
[INFO] [stdout] ...   |
[INFO] [stdout] 167 | |                         )),
[INFO] [stdout] 168 | |                     );
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |                     let _ = canvas.copy(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::choose`: use SliceRandom::choose instead
[INFO] [stdout]    --> src/main.rs:267:32
[INFO] [stdout]     |
[INFO] [stdout] 267 |         let choice: u64 = *rng.choose(&[2, 4]).unwrap();
[INFO] [stdout]     |                                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 |     let mut state_stack: Vec<Box<dyn GameState>> = Vec::new();
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state_stack`
[INFO] [stdout]    --> src/main.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 |     let mut state_stack: Vec<Box<dyn GameState>> = Vec::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_state_stack`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_fitness` is never used
[INFO] [stdout]    --> src/main.rs:270:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | impl Grid {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 270 |     fn get_fitness(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `event`, `update`, and `render` are never used
[INFO] [stdout]    --> src/main.rs:296:8
[INFO] [stdout]     |
[INFO] [stdout] 295 | trait GameState {
[INFO] [stdout]     |       --------- methods in this trait
[INFO] [stdout] 296 |     fn event(&mut self, event: Event);
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 297 |     fn update(&mut self);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 298 |     fn render(&mut self, canvas: &mut WindowCanvas, font: &ttf::Font);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PlayingState` is never constructed
[INFO] [stdout]    --> src/main.rs:301:8
[INFO] [stdout]     |
[INFO] [stdout] 301 | struct PlayingState {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Stack` is never used
[INFO] [stdout]    --> src/main.rs:306:7
[INFO] [stdout]     |
[INFO] [stdout] 306 | trait Stack<T> {
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `color_map` should have an upper case name
[INFO] [stdout]   --> src/main.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     static ref color_map: HashMap<u64, Color> = {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 27 -     static ref color_map: HashMap<u64, Color> = {
[INFO] [stdout] 27 +     static ref COLOR_MAP: HashMap<u64, Color> = {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:159:21
[INFO] [stdout]     |
[INFO] [stdout] 159 | /                     canvas.copy(
[INFO] [stdout] 160 | |                         &texture,
[INFO] [stdout] 161 | |                         None,
[INFO] [stdout] 162 | |                         Some(Rect::new(
[INFO] [stdout] ...   |
[INFO] [stdout] 167 | |                         )),
[INFO] [stdout] 168 | |                     );
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |                     let _ = canvas.copy(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.54s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 11`
[INFO] running `Command { std: "docker" "inspect" "05d0d90bc6e0141f38b55165d41ce347db83d3c2c95bf21050a7738f17af7c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05d0d90bc6e0141f38b55165d41ce347db83d3c2c95bf21050a7738f17af7c14", kill_on_drop: false }`
[INFO] [stdout] 05d0d90bc6e0141f38b55165d41ce347db83d3c2c95bf21050a7738f17af7c14
