[INFO] cloning repository https://github.com/Ryan1729/bytecode-logo-graphics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ryan1729/bytecode-logo-graphics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fbytecode-logo-graphics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fbytecode-logo-graphics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78cb3d5ff4773246526aa6e6e455c6609eb74459
[INFO] checking Ryan1729/bytecode-logo-graphics against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fbytecode-logo-graphics" "/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/Ryan1729/bytecode-logo-graphics
[INFO] finished tweaking git repo https://github.com/Ryan1729/bytecode-logo-graphics
[INFO] tweaked toml for git repo https://github.com/Ryan1729/bytecode-logo-graphics written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ryan1729/bytecode-logo-graphics on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ryan1729/bytecode-logo-graphics 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 538a510174ecdf75e7a94eca33021f64c11f36fb3c332c5798ea8c5e9d57f7a1
[INFO] running `Command { std: "docker" "start" "-a" "538a510174ecdf75e7a94eca33021f64c11f36fb3c332c5798ea8c5e9d57f7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "538a510174ecdf75e7a94eca33021f64c11f36fb3c332c5798ea8c5e9d57f7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "538a510174ecdf75e7a94eca33021f64c11f36fb3c332c5798ea8c5e9d57f7a1", kill_on_drop: false }`
[INFO] [stdout] 538a510174ecdf75e7a94eca33021f64c11f36fb3c332c5798ea8c5e9d57f7a1
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13e290073febc7d9a4a30df575b57d99349376528a0445e64700719f825345eb
[INFO] running `Command { std: "docker" "start" "-a" "13e290073febc7d9a4a30df575b57d99349376528a0445e64700719f825345eb", kill_on_drop: false }`
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[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
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[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking humantime v1.1.1
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[INFO] [stderr]     Checking num-traits v0.1.42
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[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking env_logger v0.5.5
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking quickcheck v0.6.2
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[INFO] [stdout] warning: unused import: `rendering::draw_winning_screen`
[INFO] [stdout]  --> src/common/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use rendering::draw_winning_screen;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vm::VM`
[INFO] [stdout]  --> src/common/game_state.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use vm::VM;
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `game_state::*`
[INFO] [stdout]   --> src/common/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use game_state::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner_common::GameState`
[INFO] [stdout]  --> src/common/vm.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use inner_common::GameState;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vm::*`
[INFO] [stdout]   --> src/common/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use vm::*;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/common/mod.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     bitflags! {
[INFO] [stdout] 55 | |         #[derive(Default)]
[INFO] [stdout] 56 | |         pub flags Ty: u8 {
[INFO] [stdout] 57 | |             const A          = 1 << 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/common/mod.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     bitflags! {
[INFO] [stdout] 55 | |         #[derive(Default)]
[INFO] [stdout] 56 | |         pub flags Ty: u8 {
[INFO] [stdout] 57 | |             const A          = 1 << 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bytecode::instructions::*`
[INFO] [stdout]  --> src/game.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bytecode::instructions::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:432:29
[INFO] [stdout]     |
[INFO] [stdout] 432 | fn handle_error<E: Into<Box<Error>>>(error: E) {
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 432 | fn handle_error<E: Into<Box<dyn Error>>>(error: E) {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:246:53
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn execute_cycle(&mut self) -> Result<bool, Box<Error>> {
[INFO] [stdout]     |                                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn execute_cycle(&mut self) -> Result<bool, Box<dyn Error>> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:252:49
[INFO] [stdout]     |
[INFO] [stdout] 252 |     fn run_a_bit(&mut self) -> Result<bool, Box<Error>> {
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 252 |     fn run_a_bit(&mut self) -> Result<bool, Box<dyn Error>> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rendering::draw_winning_screen`
[INFO] [stdout]  --> src/common/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use rendering::draw_winning_screen;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vm::VM`
[INFO] [stdout]  --> src/common/game_state.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use vm::VM;
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `game_state::*`
[INFO] [stdout]   --> src/common/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use game_state::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `inner_common::GameState`
[INFO] [stdout]  --> src/common/vm.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use inner_common::GameState;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vm::*`
[INFO] [stdout]   --> src/common/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use vm::*;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/common/mod.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     bitflags! {
[INFO] [stdout] 55 | |         #[derive(Default)]
[INFO] [stdout] 56 | |         pub flags Ty: u8 {
[INFO] [stdout] 57 | |             const A          = 1 << 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/common/mod.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     bitflags! {
[INFO] [stdout] 55 | |         #[derive(Default)]
[INFO] [stdout] 56 | |         pub flags Ty: u8 {
[INFO] [stdout] 57 | |             const A          = 1 << 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bytecode::instructions::*`
[INFO] [stdout]  --> src/game.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bytecode::instructions::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/game.rs:5:80
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn update_and_render(framebuffer: &mut Framebuffer, state: &mut GameState, input: Input) {
[INFO] [stdout]   |                                                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:432:29
[INFO] [stdout]     |
[INFO] [stdout] 432 | fn handle_error<E: Into<Box<Error>>>(error: E) {
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 432 | fn handle_error<E: Into<Box<dyn Error>>>(error: E) {
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:246:53
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn execute_cycle(&mut self) -> Result<bool, Box<Error>> {
[INFO] [stdout]     |                                                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn execute_cycle(&mut self) -> Result<bool, Box<dyn Error>> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:252:49
[INFO] [stdout]     |
[INFO] [stdout] 252 |     fn run_a_bit(&mut self) -> Result<bool, Box<Error>> {
[INFO] [stdout]     |                                                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 252 |     fn run_a_bit(&mut self) -> Result<bool, Box<dyn Error>> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pressed_this_frame` is never used
[INFO] [stdout]   --> src/common/mod.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Input {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn pressed_this_frame(&self, buttons: Button::Ty) -> bool {
[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 `draw_winning_screen` is never used
[INFO] [stdout]    --> src/common/rendering.rs:460:8
[INFO] [stdout]     |
[INFO] [stdout] 460 | pub fn draw_winning_screen(framebuffer: &mut Framebuffer) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SCREEN_LENGTH` is never used
[INFO] [stdout]  --> src/common/inner_common.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const SCREEN_LENGTH: usize = SCREEN_WIDTH * SCREEN_HEIGHT;
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VM` is never constructed
[INFO] [stdout]  --> src/common/vm.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct VM {
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `STACK_SIZE`, `pop`, and `push` are never used
[INFO] [stdout]   --> src/common/vm.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl VM {
[INFO] [stdout]    | ------- associated items in this implementation
[INFO] [stdout] 39 |     pub const STACK_SIZE: usize = 128;
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 40 |
[INFO] [stdout] 41 |     pub fn pop(&mut self) -> u8 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn push(&mut self, byte: u8) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/game.rs:5:80
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn update_and_render(framebuffer: &mut Framebuffer, state: &mut GameState, input: Input) {
[INFO] [stdout]   |                                                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pressed_this_frame` is never used
[INFO] [stdout]   --> src/common/mod.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl Input {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn pressed_this_frame(&self, buttons: Button::Ty) -> bool {
[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 `draw_winning_screen` is never used
[INFO] [stdout]    --> src/common/rendering.rs:460:8
[INFO] [stdout]     |
[INFO] [stdout] 460 | pub fn draw_winning_screen(framebuffer: &mut Framebuffer) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SCREEN_LENGTH` is never used
[INFO] [stdout]  --> src/common/inner_common.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const SCREEN_LENGTH: usize = SCREEN_WIDTH * SCREEN_HEIGHT;
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VM` is never constructed
[INFO] [stdout]  --> src/common/vm.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct VM {
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `STACK_SIZE`, `pop`, and `push` are never used
[INFO] [stdout]   --> src/common/vm.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl VM {
[INFO] [stdout]    | ------- associated items in this implementation
[INFO] [stdout] 39 |     pub const STACK_SIZE: usize = 128;
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 40 |
[INFO] [stdout] 41 |     pub fn pop(&mut self) -> u8 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn push(&mut self, byte: u8) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 19.26s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0, stdweb v0.4.2, syn v0.12.14
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "13e290073febc7d9a4a30df575b57d99349376528a0445e64700719f825345eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13e290073febc7d9a4a30df575b57d99349376528a0445e64700719f825345eb", kill_on_drop: false }`
[INFO] [stdout] 13e290073febc7d9a4a30df575b57d99349376528a0445e64700719f825345eb
