[INFO] cloning repository https://github.com/Sakaki-Aruka/tiny-writer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sakaki-Aruka/tiny-writer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSakaki-Aruka%2Ftiny-writer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSakaki-Aruka%2Ftiny-writer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 187ea47581f832fe86774602e640321b0b001baa
[INFO] checking Sakaki-Aruka/tiny-writer against try#fa4dd1f19bfeb3fd235dc7f1406c42404436bef5 for pr-145108-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSakaki-Aruka%2Ftiny-writer" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Sakaki-Aruka/tiny-writer
[INFO] finished tweaking git repo https://github.com/Sakaki-Aruka/tiny-writer
[INFO] tweaked toml for git repo https://github.com/Sakaki-Aruka/tiny-writer written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Sakaki-Aruka/tiny-writer on toolchain fa4dd1f19bfeb3fd235dc7f1406c42404436bef5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Sakaki-Aruka/tiny-writer 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" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "33944e4ba9be109ffa9d87412209d9b272107bc7cd7501c83603087a5c7465cc", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "3eabe72ac5fcc207c5c68dca0624ef62aa4a6529af39c59a5c6ea3051c4587c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
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[INFO] [stderr]     Checking cfg-if v1.0.0
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[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking lru v0.12.3
[INFO] [stderr]    Compiling strum_macros v0.26.2
[INFO] [stderr]    Compiling stability v0.2.0
[INFO] [stderr]     Checking strum v0.26.2
[INFO] [stderr]     Checking ratatui v0.26.2
[INFO] [stderr]     Checking tiny-writer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `max` and `min`
[INFO] [stdout]  --> src/app.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::{max, min};
[INFO] [stdout]   |                ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read`
[INFO] [stdout]  --> src/main.rs:5:64
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crossterm::event::{Event, KeyCode, KeyEvent, KeyModifiers, read};
[INFO] [stdout]   |                                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `max` and `min`
[INFO] [stdout]  --> src/app.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::{max, min};
[INFO] [stdout]   |                ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read`
[INFO] [stdout]  --> src/main.rs:5:64
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crossterm::event::{Event, KeyCode, KeyEvent, KeyModifiers, read};
[INFO] [stdout]   |                                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let mut current_x : u16 = 0;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut current_y : u16 = 0;
[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/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut terminal_width_buffer: u16 = terminal.size()?.width;
[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/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut terminal_height_buffer: u16 = terminal.size()?.height;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> src/main.rs:26:58
[INFO] [stdout]    |
[INFO] [stdout] 26 |         while let Event::Key(KeyEvent { code, modifiers, kind, .. }) = event::read()? {
[INFO] [stdout]    |                                                          ^^^^ help: try ignoring the field: `kind: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/main.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |             let height : u16 = terminal.size()?.height;
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next_is_lf`
[INFO] [stdout]   --> src/main.rs:79:25
[INFO] [stdout]    |
[INFO] [stdout] 79 |                     let next_is_lf : bool =
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_is_lf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display_coordinate` is never used
[INFO] [stdout]    --> src/main.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn display_coordinate(terminal : &mut Terminal<CrosstermBackend<Stdout>>, app : &App) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `current_page_start_index` and `current_line_start_index` are never read
[INFO] [stdout]   --> src/app.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct App {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout]  9 |     pub current_page_start_index : u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 |     pub current_line_start_index : u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `rendering` is never used
[INFO] [stdout]   --> src/app.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl App {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn rendering(&self, width : &u16, height : &u16, start : &u64) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let mut current_x : u16 = 0;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut current_y : u16 = 0;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     execute!(stdout(), EnterAlternateScreen, EnableLineWrap,MoveTo(0, 0));
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let _ = execute!(stdout(), EnterAlternateScreen, EnableLineWrap,MoveTo(0, 0));;
[INFO] [stdout]    |     +++++++                                                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:42:43
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     if x_last && y_last { execute!(stdout(), ScrollUp(1)); };
[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] 42 |                     if x_last && y_last { let _ = execute!(stdout(), ScrollUp(1));; };
[INFO] [stdout]    |                                           +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |                         execute!(stdout(), MoveToNextLine(1));
[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] 44 |                         let _ = execute!(stdout(), MoveToNextLine(1));;
[INFO] [stdout]    |                         +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     execute!(stdout(), Print(c));
[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] 48 |                     let _ = execute!(stdout(), Print(c));;
[INFO] [stdout]    |                     +++++++                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:51:33
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     if y_last { execute!(stdout(), ScrollUp(1)); };
[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] 51 |                     if y_last { let _ = execute!(stdout(), ScrollUp(1));; };
[INFO] [stdout]    |                                 +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:52:21
[INFO] [stdout]    |
[INFO] [stdout] 52 |                     execute!(stdout(), MoveToNextLine(1));
[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 _ = execute!(stdout(), MoveToNextLine(1));;
[INFO] [stdout]    |                     +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:58:43
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     if x == 0 && y == 0 { execute!(stdout(), ScrollDown(1)); }
[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] 58 |                     if x == 0 && y == 0 { let _ = execute!(stdout(), ScrollDown(1));; }
[INFO] [stdout]    |                                           +++++++                                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                         execute!(stdout(), MoveToPreviousLine(1));
[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] 61 |                         let _ = execute!(stdout(), MoveToPreviousLine(1));;
[INFO] [stdout]    |                         +++++++                                          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   execute!(stdout(), Print(previous_line.unwrap()));
[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] 64 |                             let _ = execute!(stdout(), Print(previous_line.unwrap()));;
[INFO] [stdout]    |                             +++++++                                                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         execute!(stdout(), MoveLeft(1));
[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] 68 |                         let _ = execute!(stdout(), MoveLeft(1));;
[INFO] [stdout]    |                         +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:84:37
[INFO] [stdout]    |
[INFO] [stdout] 84 |                         if y_last { execute!(stdout(), ScrollUp(1)); }
[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] 84 |                         if y_last { let _ = execute!(stdout(), ScrollUp(1));; }
[INFO] [stdout]    |                                     +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |                         execute!(stdout(), MoveToNextLine(1));
[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] 85 |                         let _ = execute!(stdout(), MoveToNextLine(1));;
[INFO] [stdout]    |                         +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |                         execute!(stdout(), Clear(ClearType::CurrentLine), Print(&displays));
[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] 88 |                         let _ = execute!(stdout(), Clear(ClearType::CurrentLine), Print(&displays));;
[INFO] [stdout]    |                         +++++++                                                                    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |                         execute!(stdout(), MoveTo(0, y));
[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] 90 |                         let _ = execute!(stdout(), MoveTo(0, y));;
[INFO] [stdout]    |                         +++++++                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                         execute!(stdout(), MoveRight(1));
[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] 92 |                         let _ = execute!(stdout(), MoveRight(1));;
[INFO] [stdout]    |                         +++++++                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     execute!(stdout(), LeaveAlternateScreen);
[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] 106 |     let _ = execute!(stdout(), LeaveAlternateScreen);;
[INFO] [stdout]     |     +++++++                                         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 | /     execute!(
[INFO] [stdout] 125 | |         stdout(),
[INFO] [stdout] 126 | |         MoveTo(0, bottom_y),
[INFO] [stdout] 127 | |         Clear(ClearType::CurrentLine),
[INFO] [stdout] 128 | |         Print(format!("x={}, y={}, index={}, chars_len={}, chars={}", &x, &y, &index, app.chars.len(), &temp)));
[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] 124 ~     let _ = execute!(
[INFO] [stdout] 125 |         stdout(),
[INFO] [stdout] 126 |         MoveTo(0, bottom_y),
[INFO] [stdout] 127 |         Clear(ClearType::CurrentLine),
[INFO] [stdout] 128 ~         Print(format!("x={}, y={}, index={}, chars_len={}, chars={}", &x, &y, &index, app.chars.len(), &temp)));;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 |     execute!(stdout(), MoveTo(x, y));
[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] 129 |     let _ = execute!(stdout(), MoveTo(x, y));;
[INFO] [stdout]     |     +++++++                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         execute!(stdout(), MoveTo(0, 0), Clear(ClearType::All));
[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] 60 |         let _ = execute!(stdout(), MoveTo(0, 0), Clear(ClearType::All));;
[INFO] [stdout]    |         +++++++                                                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 execute!(stdout(), MoveToNextLine(1));
[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] 70 |                 let _ = execute!(stdout(), MoveToNextLine(1));;
[INFO] [stdout]    |                 +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |             if x_last { execute!(stdout(), MoveToNextLine(1)); }
[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] 73 |             if x_last { let _ = execute!(stdout(), MoveToNextLine(1));; }
[INFO] [stdout]    |                         +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             execute!(stdout(), Print(c), MoveRight(1));
[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] 74 |             let _ = execute!(stdout(), Print(c), MoveRight(1));;
[INFO] [stdout]    |             +++++++                                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut terminal_width_buffer: u16 = terminal.size()?.width;
[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/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut terminal_height_buffer: u16 = terminal.size()?.height;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> src/main.rs:26:58
[INFO] [stdout]    |
[INFO] [stdout] 26 |         while let Event::Key(KeyEvent { code, modifiers, kind, .. }) = event::read()? {
[INFO] [stdout]    |                                                          ^^^^ help: try ignoring the field: `kind: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/main.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |             let height : u16 = terminal.size()?.height;
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next_is_lf`
[INFO] [stdout]   --> src/main.rs:79:25
[INFO] [stdout]    |
[INFO] [stdout] 79 |                     let next_is_lf : bool =
[INFO] [stdout]    |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_is_lf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display_coordinate` is never used
[INFO] [stdout]    --> src/main.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn display_coordinate(terminal : &mut Terminal<CrosstermBackend<Stdout>>, app : &App) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `current_page_start_index` and `current_line_start_index` are never read
[INFO] [stdout]   --> src/app.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct App {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout]  9 |     pub current_page_start_index : u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 |     pub current_line_start_index : u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `rendering` is never used
[INFO] [stdout]   --> src/app.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl App {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn rendering(&self, width : &u16, height : &u16, start : &u64) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     execute!(stdout(), EnterAlternateScreen, EnableLineWrap,MoveTo(0, 0));
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let _ = execute!(stdout(), EnterAlternateScreen, EnableLineWrap,MoveTo(0, 0));;
[INFO] [stdout]    |     +++++++                                                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:42:43
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     if x_last && y_last { execute!(stdout(), ScrollUp(1)); };
[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] 42 |                     if x_last && y_last { let _ = execute!(stdout(), ScrollUp(1));; };
[INFO] [stdout]    |                                           +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |                         execute!(stdout(), MoveToNextLine(1));
[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] 44 |                         let _ = execute!(stdout(), MoveToNextLine(1));;
[INFO] [stdout]    |                         +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     execute!(stdout(), Print(c));
[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] 48 |                     let _ = execute!(stdout(), Print(c));;
[INFO] [stdout]    |                     +++++++                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:51:33
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     if y_last { execute!(stdout(), ScrollUp(1)); };
[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] 51 |                     if y_last { let _ = execute!(stdout(), ScrollUp(1));; };
[INFO] [stdout]    |                                 +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:52:21
[INFO] [stdout]    |
[INFO] [stdout] 52 |                     execute!(stdout(), MoveToNextLine(1));
[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 _ = execute!(stdout(), MoveToNextLine(1));;
[INFO] [stdout]    |                     +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:58:43
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     if x == 0 && y == 0 { execute!(stdout(), ScrollDown(1)); }
[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] 58 |                     if x == 0 && y == 0 { let _ = execute!(stdout(), ScrollDown(1));; }
[INFO] [stdout]    |                                           +++++++                                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                         execute!(stdout(), MoveToPreviousLine(1));
[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] 61 |                         let _ = execute!(stdout(), MoveToPreviousLine(1));;
[INFO] [stdout]    |                         +++++++                                          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   execute!(stdout(), Print(previous_line.unwrap()));
[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] 64 |                             let _ = execute!(stdout(), Print(previous_line.unwrap()));;
[INFO] [stdout]    |                             +++++++                                                  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         execute!(stdout(), MoveLeft(1));
[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] 68 |                         let _ = execute!(stdout(), MoveLeft(1));;
[INFO] [stdout]    |                         +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:84:37
[INFO] [stdout]    |
[INFO] [stdout] 84 |                         if y_last { execute!(stdout(), ScrollUp(1)); }
[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] 84 |                         if y_last { let _ = execute!(stdout(), ScrollUp(1));; }
[INFO] [stdout]    |                                     +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |                         execute!(stdout(), MoveToNextLine(1));
[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] 85 |                         let _ = execute!(stdout(), MoveToNextLine(1));;
[INFO] [stdout]    |                         +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |                         execute!(stdout(), Clear(ClearType::CurrentLine), Print(&displays));
[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] 88 |                         let _ = execute!(stdout(), Clear(ClearType::CurrentLine), Print(&displays));;
[INFO] [stdout]    |                         +++++++                                                                    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |                         execute!(stdout(), MoveTo(0, y));
[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] 90 |                         let _ = execute!(stdout(), MoveTo(0, y));;
[INFO] [stdout]    |                         +++++++                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                         execute!(stdout(), MoveRight(1));
[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] 92 |                         let _ = execute!(stdout(), MoveRight(1));;
[INFO] [stdout]    |                         +++++++                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     execute!(stdout(), LeaveAlternateScreen);
[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] 106 |     let _ = execute!(stdout(), LeaveAlternateScreen);;
[INFO] [stdout]     |     +++++++                                         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 | /     execute!(
[INFO] [stdout] 125 | |         stdout(),
[INFO] [stdout] 126 | |         MoveTo(0, bottom_y),
[INFO] [stdout] 127 | |         Clear(ClearType::CurrentLine),
[INFO] [stdout] 128 | |         Print(format!("x={}, y={}, index={}, chars_len={}, chars={}", &x, &y, &index, app.chars.len(), &temp)));
[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] 124 ~     let _ = execute!(
[INFO] [stdout] 125 |         stdout(),
[INFO] [stdout] 126 |         MoveTo(0, bottom_y),
[INFO] [stdout] 127 |         Clear(ClearType::CurrentLine),
[INFO] [stdout] 128 ~         Print(format!("x={}, y={}, index={}, chars_len={}, chars={}", &x, &y, &index, app.chars.len(), &temp)));;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 |     execute!(stdout(), MoveTo(x, y));
[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] 129 |     let _ = execute!(stdout(), MoveTo(x, y));;
[INFO] [stdout]     |     +++++++                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         execute!(stdout(), MoveTo(0, 0), Clear(ClearType::All));
[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] 60 |         let _ = execute!(stdout(), MoveTo(0, 0), Clear(ClearType::All));;
[INFO] [stdout]    |         +++++++                                                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 execute!(stdout(), MoveToNextLine(1));
[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] 70 |                 let _ = execute!(stdout(), MoveToNextLine(1));;
[INFO] [stdout]    |                 +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |             if x_last { execute!(stdout(), MoveToNextLine(1)); }
[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] 73 |             if x_last { let _ = execute!(stdout(), MoveToNextLine(1));; }
[INFO] [stdout]    |                         +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             execute!(stdout(), Print(c), MoveRight(1));
[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] 74 |             let _ = execute!(stdout(), Print(c), MoveRight(1));;
[INFO] [stdout]    |             +++++++                                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.46s
[INFO] running `Command { std: "docker" "inspect" "3eabe72ac5fcc207c5c68dca0624ef62aa4a6529af39c59a5c6ea3051c4587c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eabe72ac5fcc207c5c68dca0624ef62aa4a6529af39c59a5c6ea3051c4587c9", kill_on_drop: false }`
[INFO] [stdout] 3eabe72ac5fcc207c5c68dca0624ef62aa4a6529af39c59a5c6ea3051c4587c9
