[INFO] cloning repository https://github.com/GregorLohaus/retint
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GregorLohaus/retint" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregorLohaus%2Fretint", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregorLohaus%2Fretint'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd2857c2591e5cbd996dcd2b2a783d2d4f9d5452
[INFO] checking GregorLohaus/retint/fd2857c2591e5cbd996dcd2b2a783d2d4f9d5452 against master#cb06d12710575a0d7ff71d6fe108f3bcff4f9195 for pr-128425-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregorLohaus%2Fretint" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GregorLohaus/retint on toolchain cb06d12710575a0d7ff71d6fe108f3bcff4f9195
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GregorLohaus/retint
[INFO] finished tweaking git repo https://github.com/GregorLohaus/retint
[INFO] tweaked toml for git repo https://github.com/GregorLohaus/retint written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/GregorLohaus/retint 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" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arr_macro_impl v0.2.1
[INFO] [stderr]   Downloaded memory-stats v1.1.0
[INFO] [stderr]   Downloaded arr_macro v0.2.1
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "54ce8dd8b8ab3249c2e04437859d2cdc254d702b7d693d1058ab450cbcd4d58f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54ce8dd8b8ab3249c2e04437859d2cdc254d702b7d693d1058ab450cbcd4d58f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54ce8dd8b8ab3249c2e04437859d2cdc254d702b7d693d1058ab450cbcd4d58f", kill_on_drop: false }`
[INFO] [stdout] 54ce8dd8b8ab3249c2e04437859d2cdc254d702b7d693d1058ab450cbcd4d58f
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef04241689cd54fec05913e06b50a2c01df0558c8821242afebc6ddd60b5be7c
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[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking safe_arch v0.7.0
[INFO] [stderr]     Checking memory-stats v1.1.0
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking wide v0.7.10
[INFO] [stderr]     Checking crossterm v0.26.1
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking simba v0.8.1
[INFO] [stderr]    Compiling nalgebra-macros v0.2.0
[INFO] [stderr]    Compiling arr_macro_impl v0.2.1
[INFO] [stderr]     Checking arr_macro v0.2.1
[INFO] [stderr]     Checking nalgebra v0.32.2
[INFO] [stderr]     Checking retint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `panic`
[INFO] [stdout]  --> src/gamestate.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::{fmt, panic};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `panic`
[INFO] [stdout]  --> src/gamestate.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::{fmt, panic};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error::Error` and `io::stdout`
[INFO] [stdout]  --> src/mutator.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 4 |     io::stdout,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/renderer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExecutableCommand`
[INFO] [stdout]  --> src/renderer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ExecutableCommand, QueueableCommand, Result,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExecutableCommand` and `MoveTo`
[INFO] [stdout]   --> src/main.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     cursor::{Hide, MoveTo, Show},
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     ExecutableCommand, QueueableCommand,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/gamestate.rs:143:29
[INFO] [stdout]     |
[INFO] [stdout] 143 |         if let Some(ref mut t) = &mut self.active_tetromino {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/gamestate.rs:157:29
[INFO] [stdout]     |
[INFO] [stdout] 157 |         if let Some(ref mut t) = &mut self.active_tetromino {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elapsed`
[INFO] [stdout]  --> src/mutator.rs:8:34
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn mutate(state: &mut State, elapsed: Duration) {
[INFO] [stdout]   |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_fps` is never read
[INFO] [stdout]   --> src/main.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut current_fps: u64 = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error::Error` and `io::stdout`
[INFO] [stdout]  --> src/mutator.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 4 |     io::stdout,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/gamestate.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct State {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub auto_repeat_rate: Duration,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub delayed_auto_shit: Duration,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 51 |     pub soft_drop_step_time: Duration,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 52 |     pub last_soft_drop_activation: Option<Instant>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 53 |     pub soft_drop_active: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 54 |     pub last_move_left_activation: Option<Instant>,
[INFO] [stdout] 55 |     pub move_left_active: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 56 |     pub last_move_right_activation: Option<Instant>,
[INFO] [stdout] 57 |     pub move_right_active: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 58 |     pub active_tetromino: Option<Tetromino>,
[INFO] [stdout] 59 |     pub held_tetromino: Option<Tetromino>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 60 |     pub tetromino_x_log: Vec<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/renderer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_blink_demo` is never used
[INFO] [stdout]   --> src/renderer.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn draw_blink_demo(stdout: &mut Stdout) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExecutableCommand`
[INFO] [stdout]  --> src/renderer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ExecutableCommand, QueueableCommand, Result,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_x` and `set_y` are never used
[INFO] [stdout]   --> src/tetrominos.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Block {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 12 |     pub fn set_x(&mut self, x:usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn set_y(&mut self, y:usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExecutableCommand` and `MoveTo`
[INFO] [stdout]   --> src/main.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |     cursor::{Hide, MoveTo, Show},
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     ExecutableCommand, QueueableCommand,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/gamestate.rs:143:29
[INFO] [stdout]     |
[INFO] [stdout] 143 |         if let Some(ref mut t) = &mut self.active_tetromino {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/gamestate.rs:157:29
[INFO] [stdout]     |
[INFO] [stdout] 157 |         if let Some(ref mut t) = &mut self.active_tetromino {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elapsed`
[INFO] [stdout]  --> src/mutator.rs:8:34
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn mutate(state: &mut State, elapsed: Duration) {
[INFO] [stdout]   |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_fps` is never read
[INFO] [stdout]   --> src/main.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut current_fps: u64 = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/gamestate.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct State {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub auto_repeat_rate: Duration,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub delayed_auto_shit: Duration,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 51 |     pub soft_drop_step_time: Duration,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 52 |     pub last_soft_drop_activation: Option<Instant>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 53 |     pub soft_drop_active: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 54 |     pub last_move_left_activation: Option<Instant>,
[INFO] [stdout] 55 |     pub move_left_active: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 56 |     pub last_move_right_activation: Option<Instant>,
[INFO] [stdout] 57 |     pub move_right_active: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 58 |     pub active_tetromino: Option<Tetromino>,
[INFO] [stdout] 59 |     pub held_tetromino: Option<Tetromino>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 60 |     pub tetromino_x_log: Vec<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_blink_demo` is never used
[INFO] [stdout]   --> src/renderer.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn draw_blink_demo(stdout: &mut Stdout) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_x` and `set_y` are never used
[INFO] [stdout]   --> src/tetrominos.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Block {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 12 |     pub fn set_x(&mut self, x:usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn set_y(&mut self, y:usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tetromino_type` is never read
[INFO] [stdout]   --> src/tetrominos.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Tetromino {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 39 |     pub tetromino_type: TetrominoType,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `I`, `T`, `L`, `S`, and `Z` are never constructed
[INFO] [stdout]   --> src/tetrominos.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub enum TetrominoType {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 48 |     I,
[INFO] [stdout]    |     ^
[INFO] [stdout] 49 |     T,
[INFO] [stdout]    |     ^
[INFO] [stdout] 50 |     J,
[INFO] [stdout] 51 |     L,
[INFO] [stdout]    |     ^
[INFO] [stdout] 52 |     S,
[INFO] [stdout]    |     ^
[INFO] [stdout] 53 |     Z,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TetrominoType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_y` and `max_y` are never used
[INFO] [stdout]   --> src/tetrominos.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl Tetromino {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn set_y(&mut self, y:usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |     pub fn max_y(&self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     stdout.queue(Clear(ClearType::All));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let _ = stdout.queue(Clear(ClearType::All));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/renderer.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         stdout.queue(Print(yindex));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let _ = stdout.queue(Print(yindex));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tetromino_type` is never read
[INFO] [stdout]   --> src/tetrominos.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Tetromino {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 39 |     pub tetromino_type: TetrominoType,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `I`, `T`, `L`, `S`, and `Z` are never constructed
[INFO] [stdout]   --> src/tetrominos.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub enum TetrominoType {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 48 |     I,
[INFO] [stdout]    |     ^
[INFO] [stdout] 49 |     T,
[INFO] [stdout]    |     ^
[INFO] [stdout] 50 |     J,
[INFO] [stdout] 51 |     L,
[INFO] [stdout]    |     ^
[INFO] [stdout] 52 |     S,
[INFO] [stdout]    |     ^
[INFO] [stdout] 53 |     Z,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TetrominoType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_y` and `max_y` are never used
[INFO] [stdout]   --> src/tetrominos.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl Tetromino {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn set_y(&mut self, y:usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |     pub fn max_y(&self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     stdout.queue(Clear(ClearType::All));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let _ = stdout.queue(Clear(ClearType::All));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/renderer.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         stdout.queue(Print(yindex));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let _ = stdout.queue(Print(yindex));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.77s
[INFO] running `Command { std: "docker" "inspect" "ef04241689cd54fec05913e06b50a2c01df0558c8821242afebc6ddd60b5be7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef04241689cd54fec05913e06b50a2c01df0558c8821242afebc6ddd60b5be7c", kill_on_drop: false }`
[INFO] [stdout] ef04241689cd54fec05913e06b50a2c01df0558c8821242afebc6ddd60b5be7c
