[INFO] updating cached repository https://github.com/sssilver/tetrust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 42d7e5cc34812b22e7ae4da88c9672aa3fab71f3
[INFO] testing sssilver/tetrust against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsssilver%2Ftetrust" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sssilver/tetrust on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sssilver/tetrust
[INFO] finished tweaking git repo https://github.com/sssilver/tetrust
[INFO] tweaked toml for git repo https://github.com/sssilver/tetrust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sssilver/tetrust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5ab262243e0bc31c3651cd9bd3ad8210976911eb763173ee75d614259a408dd8
[INFO] running `"docker" "start" "-a" "5ab262243e0bc31c3651cd9bd3ad8210976911eb763173ee75d614259a408dd8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling ncurses v5.84.0
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling pancurses v0.7.0
[INFO] [stderr]    Compiling tetrust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Point`, `Renderer`
[INFO] [stderr]  --> src/game/board.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use renderer::{Point, Renderer};
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/game/polyomino.rs:104:49
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn render(&self, pos: Point, renderer: &mut Renderer) {
[INFO] [stderr]     |                                                 ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Renderable`
[INFO] [stderr]   --> src/game/mod.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 | use renderer::{Renderable, Renderer};
[INFO] [stderr]    |                ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     renderer: &'a mut Renderer,
[INFO] [stderr]    |                       ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     input: &'a mut Input
[INFO] [stderr]    |                    ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:30:50
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(complexity: u8, renderer: &'a mut Renderer, input: &'a mut Input) -> Game<'a> {
[INFO] [stderr]    |                                                  ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:30:75
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(complexity: u8, renderer: &'a mut Renderer, input: &'a mut Input) -> Game<'a> {
[INFO] [stderr]    |                                                                           ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/renderer.rs:16:49
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn render(&self, pos: Point, renderer: &mut Renderer);
[INFO] [stderr]    |                                                 ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `block`
[INFO] [stderr]   --> src/curses_renderer.rs:37:30
[INFO] [stderr]    |
[INFO] [stderr] 37 |         while let Some((pos, block)) = self.blocks.pop() {
[INFO] [stderr]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/game/polyomino.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |         for i in 0..4 {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SubsystemStartupFailure`
[INFO] [stderr]  --> src/error.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     SubsystemStartupFailure
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Coord`
[INFO] [stderr]  --> src/game/polyomino.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Coord = (i8, i8);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rotate`
[INFO] [stderr]   --> src/game/polyomino.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn rotate(&mut self, clockwise: bool) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Point`
[INFO] [stderr]   --> src/game/mod.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | type Point = (u8, u8);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `state`
[INFO] [stderr]   --> src/game/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     state: state::State,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `complexity`
[INFO] [stderr]   --> src/game/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     complexity: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pieces`
[INFO] [stderr]   --> src/game/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pieces: Vec<polyomino::Polyomino>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/game/mod.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         self.input.execute();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/game/mod.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         self.renderer.execute();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.96s
[INFO] running `"docker" "inspect" "5ab262243e0bc31c3651cd9bd3ad8210976911eb763173ee75d614259a408dd8"`
[INFO] running `"docker" "rm" "-f" "5ab262243e0bc31c3651cd9bd3ad8210976911eb763173ee75d614259a408dd8"`
[INFO] [stdout] 5ab262243e0bc31c3651cd9bd3ad8210976911eb763173ee75d614259a408dd8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 812b1bed74cfc120b79522f68fae6bdfa76fb27737d4457ebcf9941c52eeca7e
[INFO] running `"docker" "start" "-a" "812b1bed74cfc120b79522f68fae6bdfa76fb27737d4457ebcf9941c52eeca7e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tetrust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Point`, `Renderer`
[INFO] [stderr]  --> src/game/board.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use renderer::{Point, Renderer};
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/game/polyomino.rs:104:49
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn render(&self, pos: Point, renderer: &mut Renderer) {
[INFO] [stderr]     |                                                 ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Renderable`
[INFO] [stderr]   --> src/game/mod.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 | use renderer::{Renderable, Renderer};
[INFO] [stderr]    |                ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     renderer: &'a mut Renderer,
[INFO] [stderr]    |                       ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     input: &'a mut Input
[INFO] [stderr]    |                    ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:30:50
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(complexity: u8, renderer: &'a mut Renderer, input: &'a mut Input) -> Game<'a> {
[INFO] [stderr]    |                                                  ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:30:75
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(complexity: u8, renderer: &'a mut Renderer, input: &'a mut Input) -> Game<'a> {
[INFO] [stderr]    |                                                                           ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/renderer.rs:16:49
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn render(&self, pos: Point, renderer: &mut Renderer);
[INFO] [stderr]    |                                                 ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `block`
[INFO] [stderr]   --> src/curses_renderer.rs:37:30
[INFO] [stderr]    |
[INFO] [stderr] 37 |         while let Some((pos, block)) = self.blocks.pop() {
[INFO] [stderr]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/game/polyomino.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |         for i in 0..4 {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SubsystemStartupFailure`
[INFO] [stderr]  --> src/error.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     SubsystemStartupFailure
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Coord`
[INFO] [stderr]  --> src/game/polyomino.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Coord = (i8, i8);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rotate`
[INFO] [stderr]   --> src/game/polyomino.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn rotate(&mut self, clockwise: bool) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Point`
[INFO] [stderr]   --> src/game/mod.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | type Point = (u8, u8);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `state`
[INFO] [stderr]   --> src/game/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     state: state::State,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `complexity`
[INFO] [stderr]   --> src/game/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     complexity: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pieces`
[INFO] [stderr]   --> src/game/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pieces: Vec<polyomino::Polyomino>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/game/mod.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         self.input.execute();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/game/mod.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         self.renderer.execute();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "812b1bed74cfc120b79522f68fae6bdfa76fb27737d4457ebcf9941c52eeca7e"`
[INFO] running `"docker" "rm" "-f" "812b1bed74cfc120b79522f68fae6bdfa76fb27737d4457ebcf9941c52eeca7e"`
[INFO] [stdout] 812b1bed74cfc120b79522f68fae6bdfa76fb27737d4457ebcf9941c52eeca7e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8c3f35e8a900b4155eab8e7ac0494b1e22aa389a9aa7fe9ea6e6338ca708fb84
[INFO] running `"docker" "start" "-a" "8c3f35e8a900b4155eab8e7ac0494b1e22aa389a9aa7fe9ea6e6338ca708fb84"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused imports: `Point`, `Renderer`
[INFO] [stderr]  --> src/game/board.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use renderer::{Point, Renderer};
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/game/polyomino.rs:104:49
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn render(&self, pos: Point, renderer: &mut Renderer) {
[INFO] [stderr]     |                                                 ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Renderable`
[INFO] [stderr]   --> src/game/mod.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 | use renderer::{Renderable, Renderer};
[INFO] [stderr]    |                ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     renderer: &'a mut Renderer,
[INFO] [stderr]    |                       ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     input: &'a mut Input
[INFO] [stderr]    |                    ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:30:50
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(complexity: u8, renderer: &'a mut Renderer, input: &'a mut Input) -> Game<'a> {
[INFO] [stderr]    |                                                  ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game/mod.rs:30:75
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(complexity: u8, renderer: &'a mut Renderer, input: &'a mut Input) -> Game<'a> {
[INFO] [stderr]    |                                                                           ^^^^^ help: use `dyn`: `dyn Input`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/renderer.rs:16:49
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn render(&self, pos: Point, renderer: &mut Renderer);
[INFO] [stderr]    |                                                 ^^^^^^^^ help: use `dyn`: `dyn Renderer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `block`
[INFO] [stderr]   --> src/curses_renderer.rs:37:30
[INFO] [stderr]    |
[INFO] [stderr] 37 |         while let Some((pos, block)) = self.blocks.pop() {
[INFO] [stderr]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/game/polyomino.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |         for i in 0..4 {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SubsystemStartupFailure`
[INFO] [stderr]  --> src/error.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     SubsystemStartupFailure
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Coord`
[INFO] [stderr]  --> src/game/polyomino.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Coord = (i8, i8);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rotate`
[INFO] [stderr]   --> src/game/polyomino.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn rotate(&mut self, clockwise: bool) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Point`
[INFO] [stderr]   --> src/game/mod.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | type Point = (u8, u8);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `state`
[INFO] [stderr]   --> src/game/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     state: state::State,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `complexity`
[INFO] [stderr]   --> src/game/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     complexity: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pieces`
[INFO] [stderr]   --> src/game/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pieces: Vec<polyomino::Polyomino>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/game/mod.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         self.input.execute();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/game/mod.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         self.renderer.execute();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tetrust-ea872cfd31b03228
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8c3f35e8a900b4155eab8e7ac0494b1e22aa389a9aa7fe9ea6e6338ca708fb84"`
[INFO] running `"docker" "rm" "-f" "8c3f35e8a900b4155eab8e7ac0494b1e22aa389a9aa7fe9ea6e6338ca708fb84"`
[INFO] [stdout] 8c3f35e8a900b4155eab8e7ac0494b1e22aa389a9aa7fe9ea6e6338ca708fb84