[INFO] cloning repository https://github.com/gen0x39/gba-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gen0x39/gba-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgen0x39%2Fgba-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgen0x39%2Fgba-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b77472582ce8f1100f224a03e3801d2014dd170c
[INFO] testing gen0x39/gba-engine against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgen0x39%2Fgba-engine" "/workspace/builds/worker-30/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-30/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/gen0x39/gba-engine on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gen0x39/gba-engine
[INFO] finished tweaking git repo https://github.com/gen0x39/gba-engine
[INFO] tweaked toml for git repo https://github.com/gen0x39/gba-engine written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] crate git repo https://github.com/gen0x39/gba-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f0696b8f435375ab871b051d0da75bed55c6ef2caed515e5112d6318724d5df
[INFO] running `Command { std: "docker" "start" "-a" "1f0696b8f435375ab871b051d0da75bed55c6ef2caed515e5112d6318724d5df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f0696b8f435375ab871b051d0da75bed55c6ef2caed515e5112d6318724d5df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f0696b8f435375ab871b051d0da75bed55c6ef2caed515e5112d6318724d5df", kill_on_drop: false }`
[INFO] [stdout] 1f0696b8f435375ab871b051d0da75bed55c6ef2caed515e5112d6318724d5df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac86d1692770c3c6111fca75dab060edc7406a04b47a0c4e7144b153380415a1
[INFO] running `Command { std: "docker" "start" "-a" "ac86d1692770c3c6111fca75dab060edc7406a04b47a0c4e7144b153380415a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked_list_allocator v0.8.6
[INFO] [stderr]    Compiling lifegameboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/graphics.rs:87:39
[INFO] [stdout]    |
[INFO] [stdout] 87 |             self.draw_char(character, (x + offset_x), y, color);
[INFO] [stdout]    |                                       ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 87 -             self.draw_char(character, (x + offset_x), y, color);
[INFO] [stdout] 87 +             self.draw_char(character, x + offset_x, y, color);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/io.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     if ((key_state & KEY_A) > 0) {
[INFO] [stdout]    |        ^                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     if ((key_state & KEY_A) > 0) {
[INFO] [stdout] 25 +     if (key_state & KEY_A) > 0 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/io.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     if ((key_state & KEY_RIGHT) > 0) {
[INFO] [stdout]    |        ^                           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -     if ((key_state & KEY_RIGHT) > 0) {
[INFO] [stdout] 35 +     if (key_state & KEY_RIGHT) > 0 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/io.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     if ((key_state & KEY_LEFT) > 0) {
[INFO] [stdout]    |        ^                          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 46 -     if ((key_state & KEY_LEFT) > 0) {
[INFO] [stdout] 46 +     if (key_state & KEY_LEFT) > 0 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/io.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     if ((key_state & KEY_UP) > 0) {
[INFO] [stdout]    |        ^                        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 57 -     if ((key_state & KEY_UP) > 0) {
[INFO] [stdout] 57 +     if (key_state & KEY_UP) > 0 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/io.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     if ((key_state & KEY_DOWN) > 0) {
[INFO] [stdout]    |        ^                          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 68 -     if ((key_state & KEY_DOWN) > 0) {
[INFO] [stdout] 68 +     if (key_state & KEY_DOWN) > 0 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::io::key_up_is_pressed`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use crate::io::key_up_is_pressed;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `object_attributes` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct object_attributes {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ObjectAttributes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:115:16
[INFO] [stdout]     |
[INFO] [stdout] 115 |             if (key_a_is_pressed()) {
[INFO] [stdout]     |                ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 115 -             if (key_a_is_pressed()) {
[INFO] [stdout] 115 +             if key_a_is_pressed() {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]    --> src/main.rs:137:15
[INFO] [stdout]     |
[INFO] [stdout] 137 |         while (*REG_DISPLAY_VCOUNT >= 160){;}
[INFO] [stdout]     |               ^                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 137 -         while (*REG_DISPLAY_VCOUNT >= 160){;}
[INFO] [stdout] 137 +         while *REG_DISPLAY_VCOUNT >= 160 {;}
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:137:44
[INFO] [stdout]     |
[INFO] [stdout] 137 |         while (*REG_DISPLAY_VCOUNT >= 160){;}
[INFO] [stdout]     |                                            ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]    --> src/main.rs:138:15
[INFO] [stdout]     |
[INFO] [stdout] 138 |         while (*REG_DISPLAY_VCOUNT < 160) {;}
[INFO] [stdout]     |               ^                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 138 -         while (*REG_DISPLAY_VCOUNT < 160) {;}
[INFO] [stdout] 138 +         while *REG_DISPLAY_VCOUNT < 160 {;}
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:138:44
[INFO] [stdout]     |
[INFO] [stdout] 138 |         while (*REG_DISPLAY_VCOUNT < 160) {;}
[INFO] [stdout]     |                                            ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 110 | /     loop {
[INFO] [stdout] 111 | |         unsafe {
[INFO] [stdout] 112 | |             wait_for_vsync();
[INFO] [stdout] 113 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 121 | |         }
[INFO] [stdout] 122 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 123 |       0
[INFO] [stdout]     |       ^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `red`
[INFO] [stdout]   --> src/main.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let red: RGB = RGB::red();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_red`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `vram` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut vram: *mut u16 = (MEM_VRAM + (offset * 2)) as *mut u16;
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_vram` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `green`
[INFO] [stdout]   --> src/main.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let green: RGB = RGB::green();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_green`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blue`
[INFO] [stdout]   --> src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let blue: RGB = RGB::blue();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_blue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `white`
[INFO] [stdout]   --> src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let white: RGB = RGB::white();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_white`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vram` is never read
[INFO] [stdout]   --> src/main.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     vram = (MEM_VRAM + (offset * 2)) as *mut u16;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paddle_attributes`
[INFO] [stdout]   --> src/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let paddle_attributes = object_attributes {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_paddle_attributes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ball_attributes`
[INFO] [stdout]   --> src/main.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let ball_attributes = object_attributes {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ball_attributes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_state`
[INFO] [stdout]    --> src/main.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut key_state: u32 = 0;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `key_state` is never read
[INFO] [stdout]   --> src/io.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut key_state: u32 = 0;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `key_state` is never read
[INFO] [stdout]   --> src/io.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut key_state: u32 = 0;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `key_state` is never read
[INFO] [stdout]   --> src/io.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut key_state: u32 = 0;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `key_state` is never read
[INFO] [stdout]   --> src/io.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut key_state: u32 = 0;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `key_state` is never read
[INFO] [stdout]   --> src/io.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut key_state: u32 = 0;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut x: u16 = 100;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let mut y: u16 = 100;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut key_state: u32 = 0;
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/main.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw_circle`
[INFO] [stdout]   --> src/graphics.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn draw_circle(&self, center_x:u16, center_y:u16, r:u16, color:&RGB) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `width`
[INFO] [stdout]   --> src/graphics.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn width(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height`
[INFO] [stdout]   --> src/graphics.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn height(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size_height`
[INFO] [stdout]  --> src/font.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     size_height: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `font_height`
[INFO] [stdout]   --> src/font.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn font_height(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `KEY_B`
[INFO] [stdout]  --> src/io.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const KEY_B:        u32 = 0x00000002; // 1
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `KEY_SELECT`
[INFO] [stdout]  --> src/io.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const KEY_SELECT:   u32 = 0x00000004; // 2
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `KEY_START`
[INFO] [stdout]  --> src/io.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const KEY_START:    u32 = 0x00000008; // 3
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `KEY_RIGHT`
[INFO] [stdout]  --> src/io.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const KEY_RIGHT:    u32 = 0x00000010; // 4
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `KEY_LEFT`
[INFO] [stdout]   --> src/io.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const KEY_LEFT:     u32 = 0x00000020; // 5
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `KEY_UP`
[INFO] [stdout]   --> src/io.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const KEY_UP:       u32 = 0x00000040; // 6
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `KEY_DOWN`
[INFO] [stdout]   --> src/io.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const KEY_DOWN:     u32 = 0x00000080; // 7
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `KEY_R`
[INFO] [stdout]   --> src/io.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const KEY_R:        u32 = 0x00000100; // 8
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `KEY_L`
[INFO] [stdout]   --> src/io.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const KEY_L:        u32 = 0x00000200; // 9 (10 ~ 15 Not Used)
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `key_right_is_pressed`
[INFO] [stdout]   --> src/io.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn key_right_is_pressed() -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `key_left_is_pressed`
[INFO] [stdout]   --> src/io.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn key_left_is_pressed() -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `key_up_is_pressed`
[INFO] [stdout]   --> src/io.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn key_up_is_pressed() -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `key_down_is_pressed`
[INFO] [stdout]   --> src/io.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn key_down_is_pressed() -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attribute_zero`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     attribute_zero: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attribute_one`
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     attribute_one:  u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attribute_two`
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     attribute_two:  u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dummy`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     dummy:          u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MEM_OAM`
[INFO] [stdout]   --> src/main.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | const MEM_OAM:      u32 = 0x07000000;   // 1KB OAM RAM (オブジェクト属性メモリ)
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `REG_DISPLAY`
[INFO] [stdout]   --> src/main.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | const REG_DISPLAY       : *const u32 = (MEM_IO) as *const u32;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `oam_memory`
[INFO] [stdout]   --> src/main.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | const oam_memory: *mut object_attributes = MEM_OAM as *mut object_attributes;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `tile_memory`
[INFO] [stdout]   --> src/main.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | const tile_memory: *mut u16 = MEM_VRAM as *mut u16;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `oam_memory` should have an upper case name
[INFO] [stdout]   --> src/main.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 42 | const oam_memory: *mut object_attributes = MEM_OAM as *mut object_attributes;
[INFO] [stdout]    |       ^^^^^^^^^^ help: convert the identifier to upper case: `OAM_MEMORY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `tile_memory` should have an upper case name
[INFO] [stdout]   --> src/main.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | const tile_memory: *mut u16 = MEM_VRAM as *mut u16;
[INFO] [stdout]    |       ^^^^^^^^^^^ help: convert the identifier to upper case: `TILE_MEMORY`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `object_palette_memory` should have an upper case name
[INFO] [stdout]   --> src/main.rs:44:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | const object_palette_memory: *mut u16 = (MEM_PAL | 0x00000200) as *mut u16;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `OBJECT_PALETTE_MEMORY`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/lifegameboy-36fa082edffc4ca9.lifegameboy.2caf6416-cgu.0.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-13b419dfbcf9c1f8.rlib" "-Wl,-Bdynamic" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/lifegameboy-36fa082edffc4ca9" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
[INFO] [stdout]           (.text+0x16): undefined reference to `__libc_csu_fini'
[INFO] [stdout]           /usr/bin/ld: (.text+0x1d): undefined reference to `__libc_csu_init'
[INFO] [stdout]           /usr/bin/ld: (.text+0x2a): undefined reference to `__libc_start_main'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/lifegameboy-36fa082edffc4ca9.lifegameboy.2caf6416-cgu.0.rcgu.o: in function `core::fmt::num::imp::fmt_u64':
[INFO] [stdout]           /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0//library/core/src/iter/adapters/zip.rs:268: undefined reference to `memset'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = help: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 61 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lifegameboy` due to 2 previous errors; 61 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ac86d1692770c3c6111fca75dab060edc7406a04b47a0c4e7144b153380415a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac86d1692770c3c6111fca75dab060edc7406a04b47a0c4e7144b153380415a1", kill_on_drop: false }`
[INFO] [stdout] ac86d1692770c3c6111fca75dab060edc7406a04b47a0c4e7144b153380415a1