[INFO] cloning repository https://github.com/Prepodobnuy/rll
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Prepodobnuy/rll" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrepodobnuy%2Frll", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrepodobnuy%2Frll'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a8177097a1a42e3fd7f05fb3924abaee9450a99
[INFO] checking Prepodobnuy/rll against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrepodobnuy%2Frll" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Prepodobnuy/rll
[INFO] finished tweaking git repo https://github.com/Prepodobnuy/rll
[INFO] tweaked toml for git repo https://github.com/Prepodobnuy/rll written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Prepodobnuy/rll on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Prepodobnuy/rll 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Prepodobnuy/rll against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPrepodobnuy%2Frll" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Prepodobnuy/rll
[INFO] finished tweaking git repo https://github.com/Prepodobnuy/rll
[INFO] tweaked toml for git repo https://github.com/Prepodobnuy/rll written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Prepodobnuy/rll on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Prepodobnuy/rll 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12445e7f9686070129bf7ef62a26fc16a55fea6a2b83be4cfe19666ee76f71ae
[INFO] running `Command { std: "docker" "start" "-a" "12445e7f9686070129bf7ef62a26fc16a55fea6a2b83be4cfe19666ee76f71ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12445e7f9686070129bf7ef62a26fc16a55fea6a2b83be4cfe19666ee76f71ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12445e7f9686070129bf7ef62a26fc16a55fea6a2b83be4cfe19666ee76f71ae", kill_on_drop: false }`
[INFO] [stdout] 12445e7f9686070129bf7ef62a26fc16a55fea6a2b83be4cfe19666ee76f71ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4858263504c80b4112b4c51d30d94e9efc7a57aece7a6933cd81c48d727c204
[INFO] running `Command { std: "docker" "start" "-a" "b4858263504c80b4112b4c51d30d94e9efc7a57aece7a6933cd81c48d727c204", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]     Checking bitflags v2.8.0
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking signal-hook-mio v0.2.4
[INFO] [stderr]     Checking crossterm v0.28.1
[INFO] [stderr]     Checking rll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Receiver` and `self`
[INFO] [stdout]  --> src/backends/backend.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::mpsc::{self, Receiver};
[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 imports: `Receiver` and `self`
[INFO] [stdout]  --> src/backends/backend.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::mpsc::{self, Receiver};
[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 imports: `Container` and `StyleLink`
[INFO] [stdout]  --> src/backends/backend.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::layout::{Container, StyleLink};
[INFO] [stdout]   |                     ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Container` and `StyleLink`
[INFO] [stdout]  --> src/backends/backend.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::layout::{Container, StyleLink};
[INFO] [stdout]   |                     ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ClearType`, `Clear`, `Hide`, `MoveTo`, `self`, and `style::Print`
[INFO] [stdout]   --> src/backends/crossterm/backend.rs:5:9
[INFO] [stdout]    |
[INFO] [stdout]  5 |         Hide, 
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]  6 |         MoveTo, 
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     style::Print, 
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 11 |     terminal::{
[INFO] [stdout] 12 |         self, 
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |         Clear, 
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 16 |         ClearType, 
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ClearType`, `Clear`, `Hide`, `MoveTo`, `self`, and `style::Print`
[INFO] [stdout]   --> src/backends/crossterm/backend.rs:5:9
[INFO] [stdout]    |
[INFO] [stdout]  5 |         Hide, 
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]  6 |         MoveTo, 
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     style::Print, 
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 11 |     terminal::{
[INFO] [stdout] 12 |         self, 
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |         Clear, 
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 16 |         ClearType, 
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Align`, `ContentWrap`, `Orientation`, `Size`, and `Style`
[INFO] [stdout]   --> src/backends/crossterm/backend.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Style,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 31 |         Align, 
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 32 |         ContentWrap, 
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 33 |         Orientation, 
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 34 |         Size, 
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Align`, `ContentWrap`, `Orientation`, `Size`, and `Style`
[INFO] [stdout]   --> src/backends/crossterm/backend.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Style,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 31 |         Align, 
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 32 |         ContentWrap, 
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 33 |         Orientation, 
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 34 |         Size, 
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Listener`, `drawer::Drawer`, and `self`
[INFO] [stdout]   --> src/backends/crossterm/backend.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 | use super::{drawer::Drawer, listener::{self, Listener}};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^             ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `InputListenerTrait` and `Key`
[INFO] [stdout]  --> src/backends/crossterm/listener.rs:3:53
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::backends::{backend::{Input, InputAction, InputListenerTrait, Key, KeyCode}, traits::ListenerTrait};
[INFO] [stdout]   |                                                     ^^^^^^^^^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Listener`, `drawer::Drawer`, and `self`
[INFO] [stdout]   --> src/backends/crossterm/backend.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 | use super::{drawer::Drawer, listener::{self, Listener}};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^             ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `InputListenerTrait` and `Key`
[INFO] [stdout]  --> src/backends/crossterm/listener.rs:3:53
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::backends::{backend::{Input, InputAction, InputListenerTrait, Key, KeyCode}, traits::ListenerTrait};
[INFO] [stdout]   |                                                     ^^^^^^^^^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EnterAlternateScreen`, `LeaveAlternateScreen`, `Show`, `disable_raw_mode`, `enable_raw_mode`, and `execute`
[INFO] [stdout]   --> src/backends/crossterm/drawer.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout]  7 |         Show
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]  8 |     }, 
[INFO] [stdout]  9 |     execute, 
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |         disable_raw_mode, 
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |         enable_raw_mode, 
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |         EnterAlternateScreen, 
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 18 |         LeaveAlternateScreen
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EnterAlternateScreen`, `LeaveAlternateScreen`, `Show`, `disable_raw_mode`, `enable_raw_mode`, and `execute`
[INFO] [stdout]   --> src/backends/crossterm/drawer.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout]  7 |         Show
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]  8 |     }, 
[INFO] [stdout]  9 |     execute, 
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |         disable_raw_mode, 
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |         enable_raw_mode, 
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |         EnterAlternateScreen, 
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 18 |         LeaveAlternateScreen
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DrawerTrair`
[INFO] [stdout]  --> src/layout.rs:1:46
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{backends::traits::{BackendTrait, DrawerTrair}, style::Style};
[INFO] [stdout]   |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DrawerTrair`
[INFO] [stdout]  --> src/layout.rs:1:46
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{backends::traits::{BackendTrait, DrawerTrair}, style::Style};
[INFO] [stdout]   |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/backends/crossterm/drawer.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let mut margin = (0, 0, 0, 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: unused variable: `margin`
[INFO] [stdout]   --> src/backends/crossterm/drawer.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let mut margin = (0, 0, 0, 0);
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_margin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/backends/crossterm/drawer.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let mut margin = (0, 0, 0, 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: unused variable: `margin`
[INFO] [stdout]   --> src/backends/crossterm/drawer.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let mut margin = (0, 0, 0, 0);
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_margin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/backends/crossterm/drawer.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut contaiment = self.contaiment.clone();
[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/backends/crossterm/drawer.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let mut contaiment = self.contaiment.clone();
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/backends/crossterm/drawer.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl RenderPart {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 81 |     fn new(
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/backends/crossterm/drawer.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl RenderPart {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 81 |     fn new(
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/backends/crossterm/backend.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         stdout.execute(Show);
[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] 66 |         let _ = stdout.execute(Show);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/backends/crossterm/backend.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         stdout.execute(Show);
[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] 66 |         let _ = stdout.execute(Show);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "b4858263504c80b4112b4c51d30d94e9efc7a57aece7a6933cd81c48d727c204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4858263504c80b4112b4c51d30d94e9efc7a57aece7a6933cd81c48d727c204", kill_on_drop: false }`
[INFO] [stdout] b4858263504c80b4112b4c51d30d94e9efc7a57aece7a6933cd81c48d727c204
