[INFO] updating cached repository tjefferson08/rustcraft
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tjefferson08/rustcraft
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tjefferson08/rustcraft" "work/ex/beta-1.37-6/sources/1.36.0/gh/tjefferson08/rustcraft"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/tjefferson08/rustcraft'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tjefferson08/rustcraft" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tjefferson08/rustcraft"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tjefferson08/rustcraft'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d9cd7eab7dafd803a4fbd4c2038754757c89dce3
[INFO] sha for GitHub repo tjefferson08/rustcraft: d9cd7eab7dafd803a4fbd4c2038754757c89dce3
[INFO] validating manifest of tjefferson08/rustcraft on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tjefferson08/rustcraft on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tjefferson08/rustcraft
[INFO] finished frobbing tjefferson08/rustcraft
[INFO] frobbed toml for tjefferson08/rustcraft written to work/ex/beta-1.37-6/sources/1.36.0/gh/tjefferson08/rustcraft/Cargo.toml
[INFO] started frobbing tjefferson08/rustcraft
[INFO] finished frobbing tjefferson08/rustcraft
[INFO] frobbed toml for tjefferson08/rustcraft written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tjefferson08/rustcraft/Cargo.toml
[INFO] crate tjefferson08/rustcraft already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tjefferson08/rustcraft against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tjefferson08/rustcraft:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] c63e5527c33c091ee9c7dc626902b1c17151a921d31c2f8f66efc0afe393ffbd
[INFO] running `"docker" "start" "-a" "c63e5527c33c091ee9c7dc626902b1c17151a921d31c2f8f66efc0afe393ffbd"`
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling syn v0.14.5
[INFO] [stderr]    Compiling glium v0.22.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling rustcraft v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/application.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 |     state_stack: Vec<Box<GameState>>,
[INFO] [stderr]    |                          ^^^^^^^^^ help: use `dyn`: `dyn GameState`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/application.rs:112:50
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn push_state(&mut self, game_state: Box<GameState>) -> () {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use `dyn`: `dyn GameState`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/application.rs:120:41
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn current_state(&self) -> &Box<GameState> {
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `dyn`: `dyn GameState`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/application.rs:124:53
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn current_state_mut(&mut self) -> &mut Box<GameState> {
[INFO] [stderr]     |                                                     ^^^^^^^^^ help: use `dyn`: `dyn GameState`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game_state.rs:10:21
[INFO] [stderr]    |
[INFO] [stderr] 10 |     models: Vec<Box<Model>>,
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Model`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deg`, `PerspectiveFov`
[INFO] [stderr]  --> src/model/cube.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | use cgmath::{Deg, Matrix3, Matrix4, PerspectiveFov, Rad, Vector3};
[INFO] [stderr]   |              ^^^                    ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/renderer/mod.rs:41:36
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn draw(&mut self, model: &Model, camera: &Camera) {
[INFO] [stderr]    |                                    ^^^^^ help: use `dyn`: `dyn Model`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `events`
[INFO] [stderr]   --> src/application.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |             let events = events_loop.poll_events(|event| {
[INFO] [stderr]    |                 ^^^^^^ help: consider prefixing with an underscore: `_events`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `speed`
[INFO] [stderr]   --> src/game_state.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let speed = 50.0;
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_speed`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delta_t`
[INFO] [stderr]   --> src/game_state.rs:53:47
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn process_event(&mut self, event: Event, delta_t: f32) -> () {
[INFO] [stderr]    |                                               ^^^^^^^ help: consider prefixing with an underscore: `_delta_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delta_t`
[INFO] [stderr]    --> src/game_state.rs:149:26
[INFO] [stderr]     |
[INFO] [stderr] 149 |     fn update(&mut self, delta_t: f32) {
[INFO] [stderr]     |                          ^^^^^^^ help: consider prefixing with an underscore: `_delta_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delta_t`
[INFO] [stderr]    --> src/game_state.rs:156:43
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn draw(&self, renderer: &mut Master, delta_t: f32) {
[INFO] [stderr]     |                                           ^^^^^^^ help: consider prefixing with an underscore: `_delta_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tex_coords_right`
[INFO] [stderr]   --> src/model/cube.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let tex_coords_right: TextureCoordinates = atlas.texture_coords_for(0, 1);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tex_coords_right`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tex_coords_left`
[INFO] [stderr]   --> src/model/cube.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let tex_coords_left: TextureCoordinates = atlas.texture_coords_for(0, 1);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tex_coords_left`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tex_coords_top`
[INFO] [stderr]   --> src/model/cube.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let tex_coords_top: TextureCoordinates = atlas.texture_coords_for(0, 0);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tex_coords_top`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tex_coords_bottom`
[INFO] [stderr]   --> src/model/cube.rs:76:13
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let tex_coords_bottom: TextureCoordinates = atlas.texture_coords_for(0, 2);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tex_coords_bottom`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/textures/mod.rs:36:38
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn texture_coords_for(&self, x: u32, y: u32) -> TextureCoordinates {
[INFO] [stderr]    |                                      ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/textures/mod.rs:36:46
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn texture_coords_for(&self, x: u32, y: u32) -> TextureCoordinates {
[INFO] [stderr]    |                                              ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/application.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |             let mut current_state = self.current_state_mut();
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/game_state.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 |         for mut model in self.models.iter_mut() {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop_state`
[INFO] [stderr]    --> src/application.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn pop_state(&mut self) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_position`
[INFO] [stderr]   --> src/entity.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn from_position(pos: (f32, f32, f32)) -> Entity {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_position`
[INFO] [stderr]   --> src/entity.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn update_position(&mut self, delta_pos: Vector3<f32>) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `texture_size`
[INFO] [stderr]   --> src/textures/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     texture_size: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `image_size`
[INFO] [stderr]   --> src/textures/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     image_size: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `textures_per_row`
[INFO] [stderr]   --> src/textures/mod.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn textures_per_row(&self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset_cursor_position`
[INFO] [stderr]   --> src/window.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn reset_cursor_position(&self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `"docker" "inspect" "c63e5527c33c091ee9c7dc626902b1c17151a921d31c2f8f66efc0afe393ffbd"`
[INFO] running `"docker" "rm" "-f" "c63e5527c33c091ee9c7dc626902b1c17151a921d31c2f8f66efc0afe393ffbd"`
[INFO] [stdout] c63e5527c33c091ee9c7dc626902b1c17151a921d31c2f8f66efc0afe393ffbd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tjefferson08/rustcraft:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8fb7ac703948d9df984982919b299200586b2473f5e0bbf4748c4274d75f816c
[INFO] running `"docker" "start" "-a" "8fb7ac703948d9df984982919b299200586b2473f5e0bbf4748c4274d75f816c"`
[INFO] [stderr]    Compiling rustcraft v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/application.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 |     state_stack: Vec<Box<GameState>>,
[INFO] [stderr]    |                          ^^^^^^^^^ help: use `dyn`: `dyn GameState`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/application.rs:112:50
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn push_state(&mut self, game_state: Box<GameState>) -> () {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use `dyn`: `dyn GameState`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/application.rs:120:41
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn current_state(&self) -> &Box<GameState> {
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `dyn`: `dyn GameState`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/application.rs:124:53
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn current_state_mut(&mut self) -> &mut Box<GameState> {
[INFO] [stderr]     |                                                     ^^^^^^^^^ help: use `dyn`: `dyn GameState`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game_state.rs:10:21
[INFO] [stderr]    |
[INFO] [stderr] 10 |     models: Vec<Box<Model>>,
[INFO] [stderr]    |                     ^^^^^ help: use `dyn`: `dyn Model`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deg`, `PerspectiveFov`
[INFO] [stderr]  --> src/model/cube.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | use cgmath::{Deg, Matrix3, Matrix4, PerspectiveFov, Rad, Vector3};
[INFO] [stderr]   |              ^^^                    ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/renderer/mod.rs:41:36
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn draw(&mut self, model: &Model, camera: &Camera) {
[INFO] [stderr]    |                                    ^^^^^ help: use `dyn`: `dyn Model`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `events`
[INFO] [stderr]   --> src/application.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |             let events = events_loop.poll_events(|event| {
[INFO] [stderr]    |                 ^^^^^^ help: consider prefixing with an underscore: `_events`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `speed`
[INFO] [stderr]   --> src/game_state.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let speed = 50.0;
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_speed`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delta_t`
[INFO] [stderr]   --> src/game_state.rs:53:47
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn process_event(&mut self, event: Event, delta_t: f32) -> () {
[INFO] [stderr]    |                                               ^^^^^^^ help: consider prefixing with an underscore: `_delta_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delta_t`
[INFO] [stderr]    --> src/game_state.rs:149:26
[INFO] [stderr]     |
[INFO] [stderr] 149 |     fn update(&mut self, delta_t: f32) {
[INFO] [stderr]     |                          ^^^^^^^ help: consider prefixing with an underscore: `_delta_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delta_t`
[INFO] [stderr]    --> src/game_state.rs:156:43
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn draw(&self, renderer: &mut Master, delta_t: f32) {
[INFO] [stderr]     |                                           ^^^^^^^ help: consider prefixing with an underscore: `_delta_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tex_coords_right`
[INFO] [stderr]   --> src/model/cube.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let tex_coords_right: TextureCoordinates = atlas.texture_coords_for(0, 1);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tex_coords_right`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tex_coords_left`
[INFO] [stderr]   --> src/model/cube.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let tex_coords_left: TextureCoordinates = atlas.texture_coords_for(0, 1);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tex_coords_left`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tex_coords_top`
[INFO] [stderr]   --> src/model/cube.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let tex_coords_top: TextureCoordinates = atlas.texture_coords_for(0, 0);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tex_coords_top`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tex_coords_bottom`
[INFO] [stderr]   --> src/model/cube.rs:76:13
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let tex_coords_bottom: TextureCoordinates = atlas.texture_coords_for(0, 2);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tex_coords_bottom`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/textures/mod.rs:36:38
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn texture_coords_for(&self, x: u32, y: u32) -> TextureCoordinates {
[INFO] [stderr]    |                                      ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/textures/mod.rs:36:46
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn texture_coords_for(&self, x: u32, y: u32) -> TextureCoordinates {
[INFO] [stderr]    |                                              ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/application.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |             let mut current_state = self.current_state_mut();
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/game_state.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 |         for mut model in self.models.iter_mut() {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop_state`
[INFO] [stderr]    --> src/application.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn pop_state(&mut self) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_position`
[INFO] [stderr]   --> src/entity.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn from_position(pos: (f32, f32, f32)) -> Entity {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_position`
[INFO] [stderr]   --> src/entity.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn update_position(&mut self, delta_pos: Vector3<f32>) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `texture_size`
[INFO] [stderr]   --> src/textures/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     texture_size: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `image_size`
[INFO] [stderr]   --> src/textures/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     image_size: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `textures_per_row`
[INFO] [stderr]   --> src/textures/mod.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn textures_per_row(&self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset_cursor_position`
[INFO] [stderr]   --> src/window.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn reset_cursor_position(&self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "8fb7ac703948d9df984982919b299200586b2473f5e0bbf4748c4274d75f816c"`
[INFO] running `"docker" "rm" "-f" "8fb7ac703948d9df984982919b299200586b2473f5e0bbf4748c4274d75f816c"`
[INFO] [stdout] 8fb7ac703948d9df984982919b299200586b2473f5e0bbf4748c4274d75f816c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tjefferson08/rustcraft:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] bf08f89570cbd1836b5c7d6fa32ef3b088f8dcb930e30e9a4c826b6a6e83b8af
[INFO] running `"docker" "start" "-a" "bf08f89570cbd1836b5c7d6fa32ef3b088f8dcb930e30e9a4c826b6a6e83b8af"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustcraft-fa46ceb827c76f22
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bf08f89570cbd1836b5c7d6fa32ef3b088f8dcb930e30e9a4c826b6a6e83b8af"`
[INFO] running `"docker" "rm" "-f" "bf08f89570cbd1836b5c7d6fa32ef3b088f8dcb930e30e9a4c826b6a6e83b8af"`
[INFO] [stdout] bf08f89570cbd1836b5c7d6fa32ef3b088f8dcb930e30e9a4c826b6a6e83b8af