[INFO] cloning repository https://github.com/AuroransSolis/tui_tetris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AuroransSolis/tui_tetris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAuroransSolis%2Ftui_tetris", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAuroransSolis%2Ftui_tetris'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ae0dbf104a99cfe34bd1fd07e4b5f0e1250446f
[INFO] testing AuroransSolis/tui_tetris against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAuroransSolis%2Ftui_tetris" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AuroransSolis/tui_tetris on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AuroransSolis/tui_tetris
[INFO] finished tweaking git repo https://github.com/AuroransSolis/tui_tetris
[INFO] tweaked toml for git repo https://github.com/AuroransSolis/tui_tetris written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/AuroransSolis/tui_tetris already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.90
[INFO] [stderr]   Downloaded crossterm_screen v0.3.2
[INFO] [stderr]   Downloaded crossterm_utils v0.4.0
[INFO] [stderr]   Downloaded crossterm_style v0.5.2
[INFO] [stderr]   Downloaded crossterm_input v0.5.0
[INFO] [stderr]   Downloaded crossterm_winapi v0.3.0
[INFO] [stderr]   Downloaded crossterm_terminal v0.3.2
[INFO] [stderr]   Downloaded crossterm_cursor v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 620d67c76fab0917b496c3bdab624d3c1d1722bf30ce2254f39c8af83690976f
[INFO] running `Command { std: "docker" "start" "-a" "620d67c76fab0917b496c3bdab624d3c1d1722bf30ce2254f39c8af83690976f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "620d67c76fab0917b496c3bdab624d3c1d1722bf30ce2254f39c8af83690976f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "620d67c76fab0917b496c3bdab624d3c1d1722bf30ce2254f39c8af83690976f", kill_on_drop: false }`
[INFO] [stdout] 620d67c76fab0917b496c3bdab624d3c1d1722bf30ce2254f39c8af83690976f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e27b5d515a502bac922a9faf74d30c6a4202fe769ce98084ea11ccc7b59e1b81
[INFO] running `Command { std: "docker" "start" "-a" "e27b5d515a502bac922a9faf74d30c6a4202fe769ce98084ea11ccc7b59e1b81", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling crossterm_utils v0.4.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling crossterm_utils v0.3.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling crossterm_cursor v0.3.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crossterm_screen v0.3.2
[INFO] [stderr]    Compiling crossterm_style v0.5.2
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossterm_input v0.4.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling crossterm_input v0.5.0
[INFO] [stderr]    Compiling crossterm_cursor v0.4.0
[INFO] [stderr]    Compiling crossterm_terminal v0.3.2
[INFO] [stderr]    Compiling crossterm v0.11.1
[INFO] [stderr]    Compiling tui_tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crossterm::Color`
[INFO] [stdout]  --> src/tetromino.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crossterm::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng`, `rngs::ThreadRng`
[INFO] [stdout]  --> src/tetromino.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{Rng, rngs::ThreadRng};
[INFO] [stdout]   |            ^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gameboard::*`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use gameboard::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tetromino::*`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tetromino::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io::Write;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cell`
[INFO] [stdout]  --> src/gameboard.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Cell {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/gameboard.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn new(character: char, colour: Color) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `GameBoard`
[INFO] [stdout]   --> src/gameboard.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct GameBoard {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/gameboard.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new(width: usize, height: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw`
[INFO] [stdout]   --> src/gameboard.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn draw(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Game`
[INFO] [stdout]   --> src/gameboard.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Game {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/gameboard.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn new(config: GameConfig) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_sequence_number`
[INFO] [stdout]   --> src/gameboard.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn decode_sequence_number(mut sequence_number: u16) -> [Tetromino; 7] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_nth_unused`
[INFO] [stdout]    --> src/gameboard.rs:201:4
[INFO] [stdout]     |
[INFO] [stdout] 201 | fn find_nth_unused(usage_map: [bool; 7], mut n: usize) -> u16 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 07s
[INFO] running `Command { std: "docker" "inspect" "e27b5d515a502bac922a9faf74d30c6a4202fe769ce98084ea11ccc7b59e1b81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e27b5d515a502bac922a9faf74d30c6a4202fe769ce98084ea11ccc7b59e1b81", kill_on_drop: false }`
[INFO] [stdout] e27b5d515a502bac922a9faf74d30c6a4202fe769ce98084ea11ccc7b59e1b81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b5fef3c73dc6c7266036c7d630d138e12b0135315e10d6e8f217d8ffbcacf6a
[INFO] running `Command { std: "docker" "start" "-a" "2b5fef3c73dc6c7266036c7d630d138e12b0135315e10d6e8f217d8ffbcacf6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling proc-macro2 v0.4.28
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling bstr v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling tui_tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crossterm::Color`
[INFO] [stdout]  --> src/tetromino.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crossterm::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng`, `rngs::ThreadRng`
[INFO] [stdout]  --> src/tetromino.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{Rng, rngs::ThreadRng};
[INFO] [stdout]   |            ^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gameboard::*`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use gameboard::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tetromino::*`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tetromino::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io::Write;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/gameboard.rs:192:21
[INFO] [stdout]     |
[INFO] [stdout] 192 |                 let message = format!(
[INFO] [stdout]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cell`
[INFO] [stdout]  --> src/gameboard.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Cell {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/gameboard.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn new(character: char, colour: Color) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `GameBoard`
[INFO] [stdout]   --> src/gameboard.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct GameBoard {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/gameboard.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new(width: usize, height: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw`
[INFO] [stdout]   --> src/gameboard.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn draw(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Game`
[INFO] [stdout]   --> src/gameboard.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Game {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/gameboard.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn new(config: GameConfig) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/gameboard.rs:175:28
[INFO] [stdout]     |
[INFO] [stdout] 175 |                     panic!(message);
[INFO] [stdout]     |                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 175 |                     panic!("{}", message);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 175 |                     std::panic::panic_any(message);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.53s
[INFO] running `Command { std: "docker" "inspect" "2b5fef3c73dc6c7266036c7d630d138e12b0135315e10d6e8f217d8ffbcacf6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b5fef3c73dc6c7266036c7d630d138e12b0135315e10d6e8f217d8ffbcacf6a", kill_on_drop: false }`
[INFO] [stdout] 2b5fef3c73dc6c7266036c7d630d138e12b0135315e10d6e8f217d8ffbcacf6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 98462df48b5447b84e2d1cd522219abb474c16b1a671629d68adc8d2461a37aa
[INFO] running `Command { std: "docker" "start" "-a" "98462df48b5447b84e2d1cd522219abb474c16b1a671629d68adc8d2461a37aa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `crossterm::Color`
[INFO] [stderr]  --> src/tetromino.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crossterm::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng`, `rngs::ThreadRng`
[INFO] [stderr]  --> src/tetromino.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rand::{Rng, rngs::ThreadRng};
[INFO] [stderr]   |            ^^^  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gameboard::*`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use gameboard::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tetromino::*`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use tetromino::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::io::Write;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `message`
[INFO] [stderr]    --> src/gameboard.rs:192:21
[INFO] [stderr]     |
[INFO] [stderr] 192 |                 let message = format!(
[INFO] [stderr]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cell`
[INFO] [stderr]  --> src/gameboard.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Cell {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/gameboard.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn new(character: char, colour: Color) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GameBoard`
[INFO] [stderr]   --> src/gameboard.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | struct GameBoard {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/gameboard.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn new(width: usize, height: usize) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `draw`
[INFO] [stderr]   --> src/gameboard.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn draw(&self) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Game`
[INFO] [stderr]   --> src/gameboard.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub struct Game {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/gameboard.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn new(config: GameConfig) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/gameboard.rs:175:28
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     panic!(message);
[INFO] [stderr]     |                            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     panic!("{}", message);
[INFO] [stderr]     |                            ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     std::panic::panic_any(message);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tui_tetris` (bin "tui_tetris" test) generated 14 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.40s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tui_tetris-5020dbabaab0cb77)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test gameboard::test_sequence_decode ... ok
[INFO] [stdout] test gameboard::test_no_duplicate_sequences ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.95s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "98462df48b5447b84e2d1cd522219abb474c16b1a671629d68adc8d2461a37aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98462df48b5447b84e2d1cd522219abb474c16b1a671629d68adc8d2461a37aa", kill_on_drop: false }`
[INFO] [stdout] 98462df48b5447b84e2d1cd522219abb474c16b1a671629d68adc8d2461a37aa