[INFO] cloning repository https://github.com/dorakueyon/rust-editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dorakueyon/rust-editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3e8b7785582cb0f3bbea81ae4d296cb7f0fe31b
[INFO] checking dorakueyon/rust-editor against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdorakueyon%2Frust-editor" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dorakueyon/rust-editor on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dorakueyon/rust-editor
[INFO] finished tweaking git repo https://github.com/dorakueyon/rust-editor
[INFO] tweaked toml for git repo https://github.com/dorakueyon/rust-editor written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/dorakueyon/rust-editor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea71f8aef3beedc647aba73c1761408d0e2fae79063bcd8f6123027531551bf7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ea71f8aef3beedc647aba73c1761408d0e2fae79063bcd8f6123027531551bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea71f8aef3beedc647aba73c1761408d0e2fae79063bcd8f6123027531551bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea71f8aef3beedc647aba73c1761408d0e2fae79063bcd8f6123027531551bf7", kill_on_drop: false }`
[INFO] [stdout] ea71f8aef3beedc647aba73c1761408d0e2fae79063bcd8f6123027531551bf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7532bee027db5a471a654103ce48ca45b174bc9630d4d155ae815867a8a6fc7f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7532bee027db5a471a654103ce48ca45b174bc9630d4d155ae815867a8a6fc7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rust-editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `stdin`, `stdout`
[INFO] [stdout]   --> src/editor.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::{stdin, stdout, Write};
[INFO] [stdout]    |               ^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `unicode_segmentation::UnicodeSegmentation`
[INFO] [stdout]  --> src/row.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use unicode_segmentation::UnicodeSegmentation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/terminal.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, stdout, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `stdin`, `stdout`
[INFO] [stdout]   --> src/editor.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::{stdin, stdout, Write};
[INFO] [stdout]    |               ^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `unicode_segmentation::UnicodeSegmentation`
[INFO] [stdout]  --> src/row.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use unicode_segmentation::UnicodeSegmentation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/terminal.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, stdout, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/editor.rs:411:9
[INFO] [stdout]     |
[INFO] [stdout] 384 | /         loop {
[INFO] [stdout] 385 | |             let r = Terminal::read_key();
[INFO] [stdout] 386 | |             match &r {
[INFO] [stdout] 387 | |                 Ok(Key::Esc) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 408 | |             self.editor_refresh_screen();
[INFO] [stdout] 409 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 410 | 
[INFO] [stdout] 411 |           prompt
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/editor.rs:411:9
[INFO] [stdout]     |
[INFO] [stdout] 384 | /         loop {
[INFO] [stdout] 385 | |             let r = Terminal::read_key();
[INFO] [stdout] 386 | |             match &r {
[INFO] [stdout] 387 | |                 Ok(Key::Esc) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 408 | |             self.editor_refresh_screen();
[INFO] [stdout] 409 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 410 | 
[INFO] [stdout] 411 |           prompt
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row_offset`
[INFO] [stdout]    --> src/editor.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let row_offset = 0;
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_row_offset`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `column_offset`
[INFO] [stdout]    --> src/editor.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let column_offset = 0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_column_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `render_x`
[INFO] [stdout]    --> src/editor.rs:826:30
[INFO] [stdout]     |
[INFO] [stdout] 826 |         let Position { x, y, render_x } = self.position;
[INFO] [stdout]     |                              ^^^^^^^^ help: try ignoring the field: `render_x: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row_offset`
[INFO] [stdout]    --> src/editor.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let row_offset = 0;
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_row_offset`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `column_offset`
[INFO] [stdout]    --> src/editor.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let column_offset = 0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_column_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `render_x`
[INFO] [stdout]    --> src/editor.rs:826:30
[INFO] [stdout]     |
[INFO] [stdout] 826 |         let Position { x, y, render_x } = self.position;
[INFO] [stdout]     |                              ^^^^^^^^ help: try ignoring the field: `render_x: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf_edge`
[INFO] [stdout]     --> src/editor.rs:1183:13
[INFO] [stdout]      |
[INFO] [stdout] 1183 |         let buf_edge = editor.document.row(0).unwrap().buf_len();
[INFO] [stdout]      |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf_edge`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `quit_times`
[INFO] [stdout]   --> src/editor.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     quit_times: u8,
[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: `editor_row_cx2rx`
[INFO] [stdout]    --> src/editor.rs:587:8
[INFO] [stdout]     |
[INFO] [stdout] 587 |     fn editor_row_cx2rx(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `quit_times`
[INFO] [stdout]   --> src/editor.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     quit_times: u8,
[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: `editor_row_cx2rx`
[INFO] [stdout]    --> src/editor.rs:587:8
[INFO] [stdout]     |
[INFO] [stdout] 587 |     fn editor_row_cx2rx(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:234:9
[INFO] [stdout]     |
[INFO] [stdout] 234 |         self.document.replace_buf(self.position.y as usize, new_buf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |         self.document.replace_buf(self.position.y as usize, new_buf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 280 |         self.document.replace_buf(append_to_row_index, move_to_buf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:382:9
[INFO] [stdout]     |
[INFO] [stdout] 382 |         self.editor_refresh_screen();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:408:13
[INFO] [stdout]     |
[INFO] [stdout] 408 |             self.editor_refresh_screen();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:507:21
[INFO] [stdout]     |
[INFO] [stdout] 507 | /                     self.document.replace_char_highlight(
[INFO] [stdout] 508 | |                         current_row as usize,
[INFO] [stdout] 509 | |                         x + 1,
[INFO] [stdout] 510 | |                         Highlight::Match,
[INFO] [stdout] 511 | |                     );
[INFO] [stdout]     | |______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:775:13
[INFO] [stdout]     |
[INFO] [stdout] 775 | /             self.document
[INFO] [stdout] 776 | |                 .replace_render(i as usize, new_vec[i as usize].clone());
[INFO] [stdout]     | |_________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:864:13
[INFO] [stdout]     |
[INFO] [stdout] 864 | /             self.document
[INFO] [stdout] 865 | |                 .replace_highlight(i as usize, highlight[i as usize].clone());
[INFO] [stdout]     | |______________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/editor.rs:1081:13
[INFO] [stdout]      |
[INFO] [stdout] 1081 | /             self.document
[INFO] [stdout] 1082 | |                 .replace_highlight(i as usize, highlight_matrix[i as usize].clone());
[INFO] [stdout]      | |_____________________________________________________________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:234:9
[INFO] [stdout]     |
[INFO] [stdout] 234 |         self.document.replace_buf(self.position.y as usize, new_buf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |         self.document.replace_buf(self.position.y as usize, new_buf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 280 |         self.document.replace_buf(append_to_row_index, move_to_buf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:382:9
[INFO] [stdout]     |
[INFO] [stdout] 382 |         self.editor_refresh_screen();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:408:13
[INFO] [stdout]     |
[INFO] [stdout] 408 |             self.editor_refresh_screen();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:507:21
[INFO] [stdout]     |
[INFO] [stdout] 507 | /                     self.document.replace_char_highlight(
[INFO] [stdout] 508 | |                         current_row as usize,
[INFO] [stdout] 509 | |                         x + 1,
[INFO] [stdout] 510 | |                         Highlight::Match,
[INFO] [stdout] 511 | |                     );
[INFO] [stdout]     | |______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:775:13
[INFO] [stdout]     |
[INFO] [stdout] 775 | /             self.document
[INFO] [stdout] 776 | |                 .replace_render(i as usize, new_vec[i as usize].clone());
[INFO] [stdout]     | |_________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/editor.rs:864:13
[INFO] [stdout]     |
[INFO] [stdout] 864 | /             self.document
[INFO] [stdout] 865 | |                 .replace_highlight(i as usize, highlight[i as usize].clone());
[INFO] [stdout]     | |______________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/editor.rs:1081:13
[INFO] [stdout]      |
[INFO] [stdout] 1081 | /             self.document
[INFO] [stdout] 1082 | |                 .replace_highlight(i as usize, highlight_matrix[i as usize].clone());
[INFO] [stdout]      | |_____________________________________________________________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.13s
[INFO] running `Command { std: "docker" "inspect" "7532bee027db5a471a654103ce48ca45b174bc9630d4d155ae815867a8a6fc7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7532bee027db5a471a654103ce48ca45b174bc9630d4d155ae815867a8a6fc7f", kill_on_drop: false }`
[INFO] [stdout] 7532bee027db5a471a654103ce48ca45b174bc9630d4d155ae815867a8a6fc7f