[INFO] cloning repository https://github.com/robertm39/play-2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robertm39/play-2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertm39%2Fplay-2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertm39%2Fplay-2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4e25827fe775bb8c85d155a348f169e72211009
[INFO] checking robertm39/play-2048 against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertm39%2Fplay-2048" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/robertm39/play-2048
[INFO] finished tweaking git repo https://github.com/robertm39/play-2048
[INFO] tweaked toml for git repo https://github.com/robertm39/play-2048 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/robertm39/play-2048 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/robertm39/play-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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a06d415ab3bd51006541e15c2f6b4fe98e500989fbd90c449cdcd4877309f2f9
[INFO] running `Command { std: "docker" "start" "-a" "a06d415ab3bd51006541e15c2f6b4fe98e500989fbd90c449cdcd4877309f2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a06d415ab3bd51006541e15c2f6b4fe98e500989fbd90c449cdcd4877309f2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a06d415ab3bd51006541e15c2f6b4fe98e500989fbd90c449cdcd4877309f2f9", kill_on_drop: false }`
[INFO] [stdout] a06d415ab3bd51006541e15c2f6b4fe98e500989fbd90c449cdcd4877309f2f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95b6d8dcc385644256b03893ff72c36286ffb6910af4cf5d0d2d6febeeffdd80
[INFO] running `Command { std: "docker" "start" "-a" "95b6d8dcc385644256b03893ff72c36286ffb6910af4cf5d0d2d6febeeffdd80", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking play-2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `after_tile` is never read
[INFO] [stdout]    --> src/minmax.rs:232:21
[INFO] [stdout]     |
[INFO] [stdout] 232 |                     after_tile.board[x][y] = val;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let score = |b: &mut BoardState| -> f64 {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_run` is never used
[INFO] [stdout]   --> src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn test_run() {
[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 `timed_run` is never used
[INFO] [stdout]   --> src/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn timed_run() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRIALS_PER_VALUE` is never used
[INFO] [stdout]    --> src/main.rs:124:7
[INFO] [stdout]     |
[INFO] [stdout] 124 | const TRIALS_PER_VALUE: u32 = 1024*2;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trials_run` is never used
[INFO] [stdout]    --> src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn trials_run() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `game_side_score` is never used
[INFO] [stdout]   --> src/minmax.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn game_side_score<S, P, G>(gs: &mut BoardState, score_config: &ScoreConfig<S, P, G>, depth: u32) -> f64
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `player_side_score` is never used
[INFO] [stdout]   --> src/minmax.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn player_side_score<S, P, G>(gs: &mut BoardState, score_config: &ScoreConfig<S, P, G>, depth: u32) -> f64
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mw_game_side_score` is never used
[INFO] [stdout]    --> src/minmax.rs:190:8
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub fn mw_game_side_score<S, P, G>(gs: &mut BoardState, score_config: &ScoreConfig<S, P, G>, width: u32) -> Option<f64>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mw_player_wide_score` is never used
[INFO] [stdout]    --> src/minmax.rs:243:8
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub fn mw_player_wide_score<S, P, G>(gs: &mut BoardState, score_config: &ScoreConfig<S, P, G>, width: u32) -> f64
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `num_connected_tiles` is never used
[INFO] [stdout]   --> src/scores.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn num_connected_tiles(board: &mut BoardState) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `highest_in_corner_or_edge_score` is never used
[INFO] [stdout]   --> src/scores.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn highest_in_corner_or_edge_score(board: &mut BoardState) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `comb_score` is never used
[INFO] [stdout]   --> src/aggs.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn comb_score(scores: &Vec<WeightedScore>) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `after_tile` is never read
[INFO] [stdout]    --> src/minmax.rs:232:21
[INFO] [stdout]     |
[INFO] [stdout] 232 |                     after_tile.board[x][y] = val;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let score = |b: &mut BoardState| -> f64 {
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_run` is never used
[INFO] [stdout]   --> src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn test_run() {
[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 `timed_run` is never used
[INFO] [stdout]   --> src/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn timed_run() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRIALS_PER_VALUE` is never used
[INFO] [stdout]    --> src/main.rs:124:7
[INFO] [stdout]     |
[INFO] [stdout] 124 | const TRIALS_PER_VALUE: u32 = 1024*2;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trials_run` is never used
[INFO] [stdout]    --> src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn trials_run() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `game_side_score` is never used
[INFO] [stdout]   --> src/minmax.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn game_side_score<S, P, G>(gs: &mut BoardState, score_config: &ScoreConfig<S, P, G>, depth: u32) -> f64
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `player_side_score` is never used
[INFO] [stdout]   --> src/minmax.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn player_side_score<S, P, G>(gs: &mut BoardState, score_config: &ScoreConfig<S, P, G>, depth: u32) -> f64
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mw_game_side_score` is never used
[INFO] [stdout]    --> src/minmax.rs:190:8
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub fn mw_game_side_score<S, P, G>(gs: &mut BoardState, score_config: &ScoreConfig<S, P, G>, width: u32) -> Option<f64>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mw_player_wide_score` is never used
[INFO] [stdout]    --> src/minmax.rs:243:8
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub fn mw_player_wide_score<S, P, G>(gs: &mut BoardState, score_config: &ScoreConfig<S, P, G>, width: u32) -> f64
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `num_connected_tiles` is never used
[INFO] [stdout]   --> src/scores.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn num_connected_tiles(board: &mut BoardState) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `highest_in_corner_or_edge_score` is never used
[INFO] [stdout]   --> src/scores.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn highest_in_corner_or_edge_score(board: &mut BoardState) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `comb_score` is never used
[INFO] [stdout]   --> src/aggs.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn comb_score(scores: &Vec<WeightedScore>) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.80s
[INFO] running `Command { std: "docker" "inspect" "95b6d8dcc385644256b03893ff72c36286ffb6910af4cf5d0d2d6febeeffdd80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b6d8dcc385644256b03893ff72c36286ffb6910af4cf5d0d2d6febeeffdd80", kill_on_drop: false }`
[INFO] [stdout] 95b6d8dcc385644256b03893ff72c36286ffb6910af4cf5d0d2d6febeeffdd80
