Dec 19 22:23:36.765 INFO checking PhilipTrauner/match3 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 22:23:36.766 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/PhilipTrauner/match3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 22:23:37.228 INFO [stdout] 8b5610fbaddb703dea9b1ea7362992a2485493ffc1b266f6444c5f775e48521e
Dec 19 22:23:37.238 INFO running `"docker" "start" "-a" "8b5610fbaddb703dea9b1ea7362992a2485493ffc1b266f6444c5f775e48521e"`
Dec 19 22:23:39.175 INFO [stderr]    Compiling serde v0.9.9
Dec 19 22:23:39.199 INFO [stderr]    Compiling xml-rs v0.3.8
Dec 19 22:23:39.227 INFO [stderr]    Compiling target_build_utils v0.3.0
Dec 19 22:23:39.229 INFO [stderr]     Checking pistoncore-event_loop v0.31.3
Dec 19 22:23:39.231 INFO [stderr]     Checking image v0.12.3
Dec 19 22:23:40.832 INFO [stderr]     Checking piston v0.31.3
Dec 19 22:23:48.989 INFO [stderr]    Compiling wayland-scanner v0.7.8
Dec 19 22:23:48.990 INFO [stderr]    Compiling gl_generator v0.5.2
Dec 19 22:23:54.600 INFO [stderr]    Compiling wayland-client v0.7.8
Dec 19 22:23:56.740 INFO [stderr]    Compiling glutin v0.7.4
Dec 19 22:23:56.740 INFO [stderr]    Compiling gl v0.6.1
Dec 19 22:24:08.325 INFO [stderr]    Compiling serde_json v0.9.8
Dec 19 22:24:17.395 INFO [stderr]    Compiling libloading v0.3.2
Dec 19 22:24:20.304 INFO [stderr]     Checking piston2d-opengl_graphics v0.42.0
Dec 19 22:24:20.996 INFO [stderr]     Checking dlib v0.3.1
Dec 19 22:24:21.463 INFO [stderr]     Checking wayland-sys v0.7.8
Dec 19 22:24:23.824 INFO [stderr]     Checking wayland-window v0.4.4
Dec 19 22:24:23.824 INFO [stderr]     Checking wayland-kbd v0.6.3
Dec 19 22:24:25.132 INFO [stderr]     Checking winit v0.5.11
Dec 19 22:24:28.232 INFO [stderr]     Checking pistoncore-glutin_window v0.35.0
Dec 19 22:24:28.836 INFO [stderr]     Checking match3 v0.1.0 (/opt/crater/workdir)
Dec 19 22:24:29.928 INFO [stderr] warning: unused import: `graphics::math::Matrix2d`
Dec 19 22:24:29.928 INFO [stderr]   --> src/main.rs:16:5
Dec 19 22:24:29.928 INFO [stderr]    |
Dec 19 22:24:29.928 INFO [stderr] 16 | use graphics::math::Matrix2d;
Dec 19 22:24:29.928 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:24:29.928 INFO [stderr]    |
Dec 19 22:24:29.928 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 22:24:29.928 INFO [stderr] 
Dec 19 22:24:29.964 INFO [stderr] warning: unused import: `graphics::math::Matrix2d`
Dec 19 22:24:29.964 INFO [stderr]   --> src/main.rs:16:5
Dec 19 22:24:29.964 INFO [stderr]    |
Dec 19 22:24:29.964 INFO [stderr] 16 | use graphics::math::Matrix2d;
Dec 19 22:24:29.964 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:24:29.964 INFO [stderr]    |
Dec 19 22:24:29.964 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 22:24:29.964 INFO [stderr] 
Dec 19 22:24:30.236 INFO [stderr] warning: unused variable: `button`
Dec 19 22:24:30.236 INFO [stderr]    --> src/main.rs:364:29
Dec 19 22:24:30.236 INFO [stderr]     |
Dec 19 22:24:30.236 INFO [stderr] 364 |         if let Some(Button::Mouse(button)) = e.press_args() {
Dec 19 22:24:30.236 INFO [stderr]     |                                   ^^^^^^ help: consider using `_button` instead
Dec 19 22:24:30.236 INFO [stderr]     |
Dec 19 22:24:30.236 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 22:24:30.236 INFO [stderr] 
Dec 19 22:24:30.236 INFO [stderr] warning: unused variable: `args`
Dec 19 22:24:30.236 INFO [stderr]    --> src/main.rs:135:23
Dec 19 22:24:30.236 INFO [stderr]     |
Dec 19 22:24:30.236 INFO [stderr] 135 |     fn update(&mut self, args: &UpdateArgs) {
Dec 19 22:24:30.236 INFO [stderr]     |                          ^^^^ help: consider using `_args` instead
Dec 19 22:24:30.236 INFO [stderr] 
Dec 19 22:24:30.236 INFO [stderr] warning: unused variable: `args`
Dec 19 22:24:30.236 INFO [stderr]    --> src/main.rs:141:23
Dec 19 22:24:30.236 INFO [stderr]     |
Dec 19 22:24:30.236 INFO [stderr] 141 |     fn resize(&mut self, args: &[u32; 2]) {
Dec 19 22:24:30.236 INFO [stderr]     |                          ^^^^ help: consider using `_args` instead
Dec 19 22:24:30.236 INFO [stderr] 
Dec 19 22:24:30.236 INFO [stderr] warning: value assigned to `column_1` is never read
Dec 19 22:24:30.236 INFO [stderr]    --> src/main.rs:235:17
Dec 19 22:24:30.236 INFO [stderr]     |
Dec 19 22:24:30.236 INFO [stderr] 235 |                                 let mut column_1: usize = 0;
Dec 19 22:24:30.236 INFO [stderr]     |                                         ^^^^^^^^
Dec 19 22:24:30.236 INFO [stderr]     |
Dec 19 22:24:30.236 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 22:24:30.236 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.236 INFO [stderr] 
Dec 19 22:24:30.236 INFO [stderr] warning: value assigned to `column_2` is never read
Dec 19 22:24:30.236 INFO [stderr]    --> src/main.rs:236:17
Dec 19 22:24:30.236 INFO [stderr]     |
Dec 19 22:24:30.236 INFO [stderr] 236 |                                 let mut column_2: usize = 0;
Dec 19 22:24:30.236 INFO [stderr]     |                                         ^^^^^^^^
Dec 19 22:24:30.236 INFO [stderr]     |
Dec 19 22:24:30.236 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.236 INFO [stderr] 
Dec 19 22:24:30.236 INFO [stderr] warning: value assigned to `row_1` is never read
Dec 19 22:24:30.236 INFO [stderr]    --> src/main.rs:252:17
Dec 19 22:24:30.236 INFO [stderr]     |
Dec 19 22:24:30.236 INFO [stderr] 252 |                                 let mut row_1: usize = 0;
Dec 19 22:24:30.237 INFO [stderr]     |                                         ^^^^^
Dec 19 22:24:30.237 INFO [stderr]     |
Dec 19 22:24:30.237 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.237 INFO [stderr] 
Dec 19 22:24:30.237 INFO [stderr] warning: value assigned to `row_2` is never read
Dec 19 22:24:30.237 INFO [stderr]    --> src/main.rs:253:17
Dec 19 22:24:30.237 INFO [stderr]     |
Dec 19 22:24:30.237 INFO [stderr] 253 |                                 let mut row_2: usize = 0;
Dec 19 22:24:30.237 INFO [stderr]     |                                         ^^^^^
Dec 19 22:24:30.237 INFO [stderr]     |
Dec 19 22:24:30.237 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.237 INFO [stderr] 
Dec 19 22:24:30.237 INFO [stderr] warning: value assigned to `column_1` is never read
Dec 19 22:24:30.237 INFO [stderr]    --> src/main.rs:254:17
Dec 19 22:24:30.237 INFO [stderr]     |
Dec 19 22:24:30.237 INFO [stderr] 254 |                                 let mut column_1: usize = 0;
Dec 19 22:24:30.237 INFO [stderr]     |                                         ^^^^^^^^
Dec 19 22:24:30.237 INFO [stderr]     |
Dec 19 22:24:30.237 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.237 INFO [stderr] 
Dec 19 22:24:30.237 INFO [stderr] warning: value assigned to `column_2` is never read
Dec 19 22:24:30.237 INFO [stderr]    --> src/main.rs:255:17
Dec 19 22:24:30.237 INFO [stderr]     |
Dec 19 22:24:30.237 INFO [stderr] 255 |                                 let mut column_2: usize = 0;
Dec 19 22:24:30.237 INFO [stderr]     |                                         ^^^^^^^^
Dec 19 22:24:30.237 INFO [stderr]     |
Dec 19 22:24:30.237 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.237 INFO [stderr] 
Dec 19 22:24:30.237 INFO [stderr] warning: unused variable: `last_color`
Dec 19 22:24:30.237 INFO [stderr]    --> src/main.rs:275:16
Dec 19 22:24:30.237 INFO [stderr]     |
Dec 19 22:24:30.237 INFO [stderr] 275 |                             let mut last_color: Option<[f32; 4]> = None; 
Dec 19 22:24:30.237 INFO [stderr]     |                                     ^^^^^^^^^^ help: consider using `_last_color` instead
Dec 19 22:24:30.237 INFO [stderr] 
Dec 19 22:24:30.237 INFO [stderr] warning: unused variable: `color_count`
Dec 19 22:24:30.237 INFO [stderr]    --> src/main.rs:276:16
Dec 19 22:24:30.237 INFO [stderr]     |
Dec 19 22:24:30.237 INFO [stderr] 276 |                             let mut color_count = 0;
Dec 19 22:24:30.237 INFO [stderr]     |                                     ^^^^^^^^^^^ help: consider using `_color_count` instead
Dec 19 22:24:30.237 INFO [stderr] 
Dec 19 22:24:30.288 INFO [stderr] warning: method is never used: `set_color`
Dec 19 22:24:30.288 INFO [stderr]   --> src/main.rs:67:2
Dec 19 22:24:30.288 INFO [stderr]    |
Dec 19 22:24:30.288 INFO [stderr] 67 |     fn set_color(&mut self, color: [f32; 4]) {
Dec 19 22:24:30.288 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:24:30.288 INFO [stderr]    |
Dec 19 22:24:30.288 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 22:24:30.288 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: unused variable: `button`
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:364:29
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 364 |         if let Some(Button::Mouse(button)) = e.press_args() {
Dec 19 22:24:30.294 INFO [stderr]     |                                   ^^^^^^ help: consider using `_button` instead
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: unused variable: `args`
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:135:23
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 135 |     fn update(&mut self, args: &UpdateArgs) {
Dec 19 22:24:30.294 INFO [stderr]     |                          ^^^^ help: consider using `_args` instead
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: unused variable: `args`
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:141:23
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 141 |     fn resize(&mut self, args: &[u32; 2]) {
Dec 19 22:24:30.294 INFO [stderr]     |                          ^^^^ help: consider using `_args` instead
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: value assigned to `column_1` is never read
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:235:17
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 235 |                                 let mut column_1: usize = 0;
Dec 19 22:24:30.294 INFO [stderr]     |                                         ^^^^^^^^
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 22:24:30.294 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: value assigned to `column_2` is never read
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:236:17
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 236 |                                 let mut column_2: usize = 0;
Dec 19 22:24:30.294 INFO [stderr]     |                                         ^^^^^^^^
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: value assigned to `row_1` is never read
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:252:17
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 252 |                                 let mut row_1: usize = 0;
Dec 19 22:24:30.294 INFO [stderr]     |                                         ^^^^^
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: value assigned to `row_2` is never read
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:253:17
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 253 |                                 let mut row_2: usize = 0;
Dec 19 22:24:30.294 INFO [stderr]     |                                         ^^^^^
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: value assigned to `column_1` is never read
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:254:17
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 254 |                                 let mut column_1: usize = 0;
Dec 19 22:24:30.294 INFO [stderr]     |                                         ^^^^^^^^
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: value assigned to `column_2` is never read
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:255:17
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 255 |                                 let mut column_2: usize = 0;
Dec 19 22:24:30.294 INFO [stderr]     |                                         ^^^^^^^^
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: unused variable: `last_color`
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:275:16
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 275 |                             let mut last_color: Option<[f32; 4]> = None; 
Dec 19 22:24:30.294 INFO [stderr]     |                                     ^^^^^^^^^^ help: consider using `_last_color` instead
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.294 INFO [stderr] warning: unused variable: `color_count`
Dec 19 22:24:30.294 INFO [stderr]    --> src/main.rs:276:16
Dec 19 22:24:30.294 INFO [stderr]     |
Dec 19 22:24:30.294 INFO [stderr] 276 |                             let mut color_count = 0;
Dec 19 22:24:30.294 INFO [stderr]     |                                     ^^^^^^^^^^^ help: consider using `_color_count` instead
Dec 19 22:24:30.294 INFO [stderr] 
Dec 19 22:24:30.340 INFO [stderr] warning: method is never used: `set_color`
Dec 19 22:24:30.340 INFO [stderr]   --> src/main.rs:67:2
Dec 19 22:24:30.340 INFO [stderr]    |
Dec 19 22:24:30.340 INFO [stderr] 67 |     fn set_color(&mut self, color: [f32; 4]) {
Dec 19 22:24:30.340 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:24:30.340 INFO [stderr]    |
Dec 19 22:24:30.340 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 22:24:30.340 INFO [stderr] 
Dec 19 22:24:30.380 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.46s
Dec 19 22:24:31.086 INFO running `"docker" "inspect" "8b5610fbaddb703dea9b1ea7362992a2485493ffc1b266f6444c5f775e48521e"`
Dec 19 22:24:31.342 INFO running `"docker" "rm" "-f" "8b5610fbaddb703dea9b1ea7362992a2485493ffc1b266f6444c5f775e48521e"`
Dec 19 22:24:31.596 INFO [stdout] 8b5610fbaddb703dea9b1ea7362992a2485493ffc1b266f6444c5f775e48521e