[INFO] cloning repository https://github.com/peter-lucia/tetris_engine [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peter-lucia/tetris_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeter-lucia%2Ftetris_engine", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeter-lucia%2Ftetris_engine'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d2f4c4850ed527a8a331cafa258bd90d8a35a181 [INFO] checking peter-lucia/tetris_engine against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeter-lucia%2Ftetris_engine" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/peter-lucia/tetris_engine on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/peter-lucia/tetris_engine [INFO] finished tweaking git repo https://github.com/peter-lucia/tetris_engine [INFO] tweaked toml for git repo https://github.com/peter-lucia/tetris_engine written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/peter-lucia/tetris_engine 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unindent v0.1.10 [INFO] [stderr] Downloaded pyo3-macros v0.17.3 [INFO] [stderr] Downloaded pyo3-build-config v0.17.3 [INFO] [stderr] Downloaded pyo3-ffi v0.17.3 [INFO] [stderr] Downloaded log-mdc v0.1.0 [INFO] [stderr] Downloaded typemap v0.3.3 [INFO] [stderr] Downloaded target-lexicon v0.12.5 [INFO] [stderr] Downloaded pyo3-macros-backend v0.17.3 [INFO] [stderr] Downloaded itoa v1.0.2 [INFO] [stderr] Downloaded ordered-float v2.10.0 [INFO] [stderr] Downloaded linked-hash-map v0.5.4 [INFO] [stderr] Downloaded arc-swap v1.5.0 [INFO] [stderr] Downloaded anyhow v1.0.57 [INFO] [stderr] Downloaded aho-corasick v0.7.18 [INFO] [stderr] Downloaded regex-syntax v0.6.26 [INFO] [stderr] Downloaded regex v1.5.6 [INFO] [stderr] Downloaded pyo3 v0.17.3 [INFO] [stderr] Downloaded serde-value v0.7.0 [INFO] [stderr] Downloaded serde_json v1.0.81 [INFO] [stderr] Downloaded indexmap v1.8.2 [INFO] [stderr] Downloaded ryu v1.0.10 [INFO] [stderr] Downloaded serde_derive v1.0.137 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"/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 07355561bcff9c5a05693cad53b603836db340ce7443b5f25293467532eec9f0 [INFO] running `Command { std: "docker" "start" "-a" "07355561bcff9c5a05693cad53b603836db340ce7443b5f25293467532eec9f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "07355561bcff9c5a05693cad53b603836db340ce7443b5f25293467532eec9f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" 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"ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 83e74610a448de3d907eaae2e0f508de9db30d9bf2596ae3fbfa666ad6e35e89 [INFO] running `Command { std: "docker" "start" "-a" "83e74610a448de3d907eaae2e0f508de9db30d9bf2596ae3fbfa666ad6e35e89", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling syn v1.0.96 [INFO] [stderr] Compiling target-lexicon v0.12.5 [INFO] [stderr] Compiling serde_derive v1.0.137 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling once_cell v1.16.0 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling indexmap v1.8.2 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling anyhow v1.0.57 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking traitobject v0.1.0 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking unsafe-any v0.4.2 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking typemap v0.3.3 [INFO] [stderr] Checking arc-swap v1.5.0 [INFO] [stderr] Checking unindent v0.1.10 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking log-mdc v0.1.0 [INFO] [stderr] Compiling indoc v1.0.7 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Compiling pyo3-build-config v0.17.3 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking thread-id v4.0.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking parking_lot v0.12.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking regex v1.5.6 [INFO] [stderr] Checking ordered-float v2.10.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Compiling pyo3-ffi v0.17.3 [INFO] [stderr] Compiling pyo3 v0.17.3 [INFO] [stderr] Compiling pyo3-macros-backend v0.17.3 [INFO] [stderr] Compiling thiserror-impl v1.0.31 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Checking thiserror v1.0.31 [INFO] [stderr] Compiling pyo3-macros v0.17.3 [INFO] [stderr] Checking serde_yaml v0.8.24 [INFO] [stderr] Checking serde-value v0.7.0 [INFO] [stderr] Checking env_logger v0.9.0 [INFO] [stderr] Checking log4rs v1.1.1 [INFO] [stderr] Checking tetris_engine_backend v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow` [INFO] [stdout] --> src/main.rs:3:19 [INFO] [stdout] | [INFO] [stdout] 3 | use std::borrow::{Borrow, BorrowMut}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/main.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow` [INFO] [stdout] --> src/main.rs:3:19 [INFO] [stdout] | [INFO] [stdout] 3 | use std::borrow::{Borrow, BorrowMut}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::rc::Rc` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/main.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/well.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 21 | let mut tetris = Tetris::new(); [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/well.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 21 | let mut tetris = Tetris::new(); [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/tetromino.rs:360:13 [INFO] [stdout] | [INFO] [stdout] 360 | let mut expected_result = [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/tetromino.rs:379:13 [INFO] [stdout] | [INFO] [stdout] 379 | let mut expected_result = [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/tetromino.rs:360:13 [INFO] [stdout] | [INFO] [stdout] 360 | let mut expected_result = [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/tetromino.rs:436:13 [INFO] [stdout] | [INFO] [stdout] 436 | let mut expected_result = [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/tetromino.rs:379:13 [INFO] [stdout] | [INFO] [stdout] 379 | let mut expected_result = [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/well.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 21 | let mut tetris = Tetris::new(); [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/tetromino.rs:436:13 [INFO] [stdout] | [INFO] [stdout] 436 | let mut expected_result = [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/well.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 21 | let mut tetris = Tetris::new(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `status` [INFO] [stdout] --> src/well.rs:237:38 [INFO] [stdout] | [INFO] [stdout] 237 | fn render_game_status(&mut self, status: &str) { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `score` [INFO] [stdout] --> src/well.rs:240:32 [INFO] [stdout] | [INFO] [stdout] 240 | fn render_score(&mut self, score: i32) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/well.rs:287:21 [INFO] [stdout] | [INFO] [stdout] 287 | for x in 1..self.grid[y].len()-1 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `rotate_alt` is never used [INFO] [stdout] --> src/tetromino.rs:214:4 [INFO] [stdout] | [INFO] [stdout] 214 | fn rotate_alt(t: &mut Tetromino) -> () { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `make_t` is never used [INFO] [stdout] --> src/tetromino.rs:278:8 [INFO] [stdout] | [INFO] [stdout] 277 | pub trait TetrominoT { [INFO] [stdout] | ---------- associated function in this trait [INFO] [stdout] 278 | fn make_t() -> Self; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_game` is never used [INFO] [stdout] --> src/well.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn read_game() -> Well { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `write_game` is never used [INFO] [stdout] --> src/well.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn write_game(_well: Well) -> () { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `start_game_multithreaded` is never used [INFO] [stdout] --> src/well.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn start_game_multithreaded() -> () { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Up` is never constructed [INFO] [stdout] --> src/well.rs:76:5 [INFO] [stdout] | [INFO] [stdout] 75 | pub enum Direction { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 76 | Up, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `random_direction` is never used [INFO] [stdout] --> src/well.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | pub fn random_direction() -> Direction { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `status` [INFO] [stdout] --> src/well.rs:237:38 [INFO] [stdout] | [INFO] [stdout] 237 | fn render_game_status(&mut self, status: &str) { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `score` [INFO] [stdout] --> src/well.rs:240:32 [INFO] [stdout] | [INFO] [stdout] 240 | fn render_score(&mut self, score: i32) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/well.rs:287:21 [INFO] [stdout] | [INFO] [stdout] 287 | for x in 1..self.grid[y].len()-1 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/well.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | mem::replace(&mut *hashmap_guard, _well.clone()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 35 | let _ = mem::replace(&mut *hashmap_guard, _well.clone()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/well.rs:372:9 [INFO] [stdout] | [INFO] [stdout] 372 | fs::write(HIGH_SCORE_FILENAME, high_score.to_string()); [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] 372 | let _ = fs::write(HIGH_SCORE_FILENAME, high_score.to_string()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `py` [INFO] [stdout] --> src/lib.rs:39:17 [INFO] [stdout] | [INFO] [stdout] 39 | fn setup_tetris(py: Python<'_>, m: &PyModule) -> PyResult<()> { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_py` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `status` [INFO] [stdout] --> src/well.rs:237:38 [INFO] [stdout] | [INFO] [stdout] 237 | fn render_game_status(&mut self, status: &str) { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `score` [INFO] [stdout] --> src/well.rs:240:32 [INFO] [stdout] | [INFO] [stdout] 240 | fn render_score(&mut self, score: i32) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `rotate_alt` is never used [INFO] [stdout] --> src/tetromino.rs:214:4 [INFO] [stdout] | [INFO] [stdout] 214 | fn rotate_alt(t: &mut Tetromino) -> () { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `make_t` is never used [INFO] [stdout] --> src/tetromino.rs:278:8 [INFO] [stdout] | [INFO] [stdout] 277 | pub trait TetrominoT { [INFO] [stdout] | ---------- associated function in this trait [INFO] [stdout] 278 | fn make_t() -> Self; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Up` is never constructed [INFO] [stdout] --> src/well.rs:76:5 [INFO] [stdout] | [INFO] [stdout] 75 | pub enum Direction { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 76 | Up, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `random_direction` is never used [INFO] [stdout] --> src/well.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | pub fn random_direction() -> Direction { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `run_game` is never used [INFO] [stdout] --> src/well.rs:146:8 [INFO] [stdout] | [INFO] [stdout] 128 | pub trait Tetris { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 146 | fn run_game(&mut self) -> (); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `status` [INFO] [stdout] --> src/well.rs:237:38 [INFO] [stdout] | [INFO] [stdout] 237 | fn render_game_status(&mut self, status: &str) { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `score` [INFO] [stdout] --> src/well.rs:240:32 [INFO] [stdout] | [INFO] [stdout] 240 | fn render_score(&mut self, score: i32) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_score` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/well.rs:287:21 [INFO] [stdout] | [INFO] [stdout] 287 | for x in 1..self.grid[y].len()-1 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/well.rs:287:21 [INFO] [stdout] | [INFO] [stdout] 287 | for x in 1..self.grid[y].len()-1 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `rotate_alt` is never used [INFO] [stdout] --> src/tetromino.rs:214:4 [INFO] [stdout] | [INFO] [stdout] 214 | fn rotate_alt(t: &mut Tetromino) -> () { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `make_t` is never used [INFO] [stdout] --> src/tetromino.rs:278:8 [INFO] [stdout] | [INFO] [stdout] 277 | pub trait TetrominoT { [INFO] [stdout] | ---------- associated function in this trait [INFO] [stdout] 278 | fn make_t() -> Self; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test_rotate_90_basic` is never used [INFO] [stdout] --> src/tetromino.rs:368:8 [INFO] [stdout] | [INFO] [stdout] 368 | fn test_rotate_90_basic() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_game` is never used [INFO] [stdout] --> src/well.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn read_game() -> Well { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `write_game` is never used [INFO] [stdout] --> src/well.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn write_game(_well: Well) -> () { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `start_game_multithreaded` is never used [INFO] [stdout] --> src/well.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn start_game_multithreaded() -> () { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Up` is never constructed [INFO] [stdout] --> src/well.rs:76:5 [INFO] [stdout] | [INFO] [stdout] 75 | pub enum Direction { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 76 | Up, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `random_direction` is never used [INFO] [stdout] --> src/well.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | pub fn random_direction() -> Direction { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `py` [INFO] [stdout] --> src/lib.rs:39:17 [INFO] [stdout] | [INFO] [stdout] 39 | fn setup_tetris(py: Python<'_>, m: &PyModule) -> PyResult<()> { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_py` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/well.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | mem::replace(&mut *hashmap_guard, _well.clone()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 35 | let _ = mem::replace(&mut *hashmap_guard, _well.clone()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `rotate_alt` is never used [INFO] [stdout] --> src/tetromino.rs:214:4 [INFO] [stdout] | [INFO] [stdout] 214 | fn rotate_alt(t: &mut Tetromino) -> () { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `make_t` is never used [INFO] [stdout] --> src/tetromino.rs:278:8 [INFO] [stdout] | [INFO] [stdout] 277 | pub trait TetrominoT { [INFO] [stdout] | ---------- associated function in this trait [INFO] [stdout] 278 | fn make_t() -> Self; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test_rotate_90_basic` is never used [INFO] [stdout] --> src/tetromino.rs:368:8 [INFO] [stdout] | [INFO] [stdout] 368 | fn test_rotate_90_basic() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Up` is never constructed [INFO] [stdout] --> src/well.rs:76:5 [INFO] [stdout] | [INFO] [stdout] 75 | pub enum Direction { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 76 | Up, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `random_direction` is never used [INFO] [stdout] --> src/well.rs:82:8 [INFO] [stdout] | [INFO] [stdout] 82 | pub fn random_direction() -> Direction { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `run_game` is never used [INFO] [stdout] --> src/well.rs:146:8 [INFO] [stdout] | [INFO] [stdout] 128 | pub trait Tetris { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 146 | fn run_game(&mut self) -> (); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/well.rs:372:9 [INFO] [stdout] | [INFO] [stdout] 372 | fs::write(HIGH_SCORE_FILENAME, high_score.to_string()); [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] 372 | let _ = fs::write(HIGH_SCORE_FILENAME, high_score.to_string()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/well.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | mem::replace(&mut *hashmap_guard, _well.clone()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 35 | let _ = mem::replace(&mut *hashmap_guard, _well.clone()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/well.rs:372:9 [INFO] [stdout] | [INFO] [stdout] 372 | fs::write(HIGH_SCORE_FILENAME, high_score.to_string()); [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] 372 | let _ = fs::write(HIGH_SCORE_FILENAME, high_score.to_string()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/well.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | mem::replace(&mut *hashmap_guard, _well.clone()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 35 | let _ = mem::replace(&mut *hashmap_guard, _well.clone()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/well.rs:372:9 [INFO] [stdout] | [INFO] [stdout] 372 | fs::write(HIGH_SCORE_FILENAME, high_score.to_string()); [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] 372 | let _ = fs::write(HIGH_SCORE_FILENAME, high_score.to_string()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 22 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.66s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "83e74610a448de3d907eaae2e0f508de9db30d9bf2596ae3fbfa666ad6e35e89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83e74610a448de3d907eaae2e0f508de9db30d9bf2596ae3fbfa666ad6e35e89", kill_on_drop: false }` [INFO] [stdout] 83e74610a448de3d907eaae2e0f508de9db30d9bf2596ae3fbfa666ad6e35e89