[INFO] cloning repository https://github.com/dipayancodes/snake-game-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dipayancodes/snake-game-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdipayancodes%2Fsnake-game-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdipayancodes%2Fsnake-game-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b0755da7426a2436b6683047b43f511e4633f872 [INFO] checking dipayancodes/snake-game-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdipayancodes%2Fsnake-game-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dipayancodes/snake-game-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dipayancodes/snake-game-rust [INFO] finished tweaking git repo https://github.com/dipayancodes/snake-game-rust [INFO] tweaked toml for git repo https://github.com/dipayancodes/snake-game-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/dipayancodes/snake-game-rust 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded signal-hook v0.3.16 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b36f067a5a2eaa69e0db316a2f7d2216ce3db6022b73ae47495d95e6979f79b5 [INFO] running `Command { std: "docker" "start" "-a" "b36f067a5a2eaa69e0db316a2f7d2216ce3db6022b73ae47495d95e6979f79b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b36f067a5a2eaa69e0db316a2f7d2216ce3db6022b73ae47495d95e6979f79b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b36f067a5a2eaa69e0db316a2f7d2216ce3db6022b73ae47495d95e6979f79b5", kill_on_drop: false }` [INFO] [stdout] b36f067a5a2eaa69e0db316a2f7d2216ce3db6022b73ae47495d95e6979f79b5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 11146cfc3fbc02fed2f0dc86691fd5a4e8ef6e1b1b977cae3d7fa25c56d97799 [INFO] running `Command { std: "docker" "start" "-a" "11146cfc3fbc02fed2f0dc86691fd5a4e8ef6e1b1b977cae3d7fa25c56d97799", kill_on_drop: false }` [INFO] [stderr] Compiling signal-hook v0.3.16 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking signal-hook-mio v0.2.3 [INFO] [stderr] Checking crossterm v0.26.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking snake_game_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `ClearType`, `KeyEvent` [INFO] [stdout] --> src/main.rs:7:28 [INFO] [stdout] | [INFO] [stdout] 7 | event::{self, KeyCode, KeyEvent}, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 8 | execute, [INFO] [stdout] 9 | terminal::{self, ClearType}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/main.rs:69:16 [INFO] [stdout] | [INFO] [stdout] 69 | if ( [INFO] [stdout] | ________________^ [INFO] [stdout] 70 | | new_head.0 == 0 || new_head.0 == SCREEN_HEIGHT - 1 || [INFO] [stdout] | |________________^ [INFO] [stdout] 71 | new_head.1 == 0 || new_head.1 == SCREEN_WIDTH - 1 || [INFO] [stdout] 72 | snake[1..].contains(&new_head) [INFO] [stdout] | _______________________________________________^ [INFO] [stdout] 73 | | ) { [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 69 ~ if new_head.0 == 0 || new_head.0 == SCREEN_HEIGHT - 1 || [INFO] [stdout] 70 | new_head.1 == 0 || new_head.1 == SCREEN_WIDTH - 1 || [INFO] [stdout] 71 ~ snake[1..].contains(&new_head) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ClearType`, `KeyEvent` [INFO] [stdout] --> src/main.rs:7:28 [INFO] [stdout] | [INFO] [stdout] 7 | event::{self, KeyCode, KeyEvent}, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 8 | execute, [INFO] [stdout] 9 | terminal::{self, ClearType}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{stdout, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tail` [INFO] [stdout] --> src/main.rs:87:21 [INFO] [stdout] | [INFO] [stdout] 87 | let tail = snake.pop().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tail` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/main.rs:69:16 [INFO] [stdout] | [INFO] [stdout] 69 | if ( [INFO] [stdout] | ________________^ [INFO] [stdout] 70 | | new_head.0 == 0 || new_head.0 == SCREEN_HEIGHT - 1 || [INFO] [stdout] | |________________^ [INFO] [stdout] 71 | new_head.1 == 0 || new_head.1 == SCREEN_WIDTH - 1 || [INFO] [stdout] 72 | snake[1..].contains(&new_head) [INFO] [stdout] | _______________________________________________^ [INFO] [stdout] 73 | | ) { [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 69 ~ if new_head.0 == 0 || new_head.0 == SCREEN_HEIGHT - 1 || [INFO] [stdout] 70 | new_head.1 == 0 || new_head.1 == SCREEN_WIDTH - 1 || [INFO] [stdout] 71 ~ snake[1..].contains(&new_head) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{stdout, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tail` [INFO] [stdout] --> src/main.rs:87:21 [INFO] [stdout] | [INFO] [stdout] 87 | let tail = snake.pop().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tail` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.89s [INFO] running `Command { std: "docker" "inspect" "11146cfc3fbc02fed2f0dc86691fd5a4e8ef6e1b1b977cae3d7fa25c56d97799", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11146cfc3fbc02fed2f0dc86691fd5a4e8ef6e1b1b977cae3d7fa25c56d97799", kill_on_drop: false }` [INFO] [stdout] 11146cfc3fbc02fed2f0dc86691fd5a4e8ef6e1b1b977cae3d7fa25c56d97799 [INFO] checking dipayancodes/snake-game-rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdipayancodes%2Fsnake-game-rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dipayancodes/snake-game-rust on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dipayancodes/snake-game-rust [INFO] finished tweaking git repo https://github.com/dipayancodes/snake-game-rust [INFO] tweaked toml for git repo https://github.com/dipayancodes/snake-game-rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dipayancodes/snake-game-rust 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ddae950c84680f0bcb428984ab529d66a9b91dfcea874ef89f99ecabb0031f7e [INFO] running `Command { std: "docker" "start" "-a" "ddae950c84680f0bcb428984ab529d66a9b91dfcea874ef89f99ecabb0031f7e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ddae950c84680f0bcb428984ab529d66a9b91dfcea874ef89f99ecabb0031f7e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ddae950c84680f0bcb428984ab529d66a9b91dfcea874ef89f99ecabb0031f7e", kill_on_drop: false }` [INFO] [stdout] ddae950c84680f0bcb428984ab529d66a9b91dfcea874ef89f99ecabb0031f7e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b8916403d8f5279c0e0618871ecef7f033a3e148bd92c3cc9fa7ffeab8e21109 [INFO] running `Command { std: "docker" "start" "-a" "b8916403d8f5279c0e0618871ecef7f033a3e148bd92c3cc9fa7ffeab8e21109", kill_on_drop: false }` [INFO] [stderr] Compiling signal-hook v0.3.16 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking signal-hook-mio v0.2.3 [INFO] [stderr] Checking crossterm v0.26.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking snake_game_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `ClearType`, `KeyEvent` [INFO] [stdout] --> src/main.rs:7:28 [INFO] [stdout] | [INFO] [stdout] 7 | event::{self, KeyCode, KeyEvent}, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 8 | execute, [INFO] [stdout] 9 | terminal::{self, ClearType}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/main.rs:69:16 [INFO] [stdout] | [INFO] [stdout] 69 | if ( [INFO] [stdout] | ________________^ [INFO] [stdout] 70 | | new_head.0 == 0 || new_head.0 == SCREEN_HEIGHT - 1 || [INFO] [stdout] | |________________^ [INFO] [stdout] 71 | new_head.1 == 0 || new_head.1 == SCREEN_WIDTH - 1 || [INFO] [stdout] 72 | snake[1..].contains(&new_head) [INFO] [stdout] | _______________________________________________^ [INFO] [stdout] 73 | | ) { [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 69 ~ if new_head.0 == 0 || new_head.0 == SCREEN_HEIGHT - 1 || [INFO] [stdout] 70 | new_head.1 == 0 || new_head.1 == SCREEN_WIDTH - 1 || [INFO] [stdout] 71 ~ snake[1..].contains(&new_head) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ClearType`, `KeyEvent` [INFO] [stdout] --> src/main.rs:7:28 [INFO] [stdout] | [INFO] [stdout] 7 | event::{self, KeyCode, KeyEvent}, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 8 | execute, [INFO] [stdout] 9 | terminal::{self, ClearType}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/main.rs:69:16 [INFO] [stdout] | [INFO] [stdout] 69 | if ( [INFO] [stdout] | ________________^ [INFO] [stdout] 70 | | new_head.0 == 0 || new_head.0 == SCREEN_HEIGHT - 1 || [INFO] [stdout] | |________________^ [INFO] [stdout] 71 | new_head.1 == 0 || new_head.1 == SCREEN_WIDTH - 1 || [INFO] [stdout] 72 | snake[1..].contains(&new_head) [INFO] [stdout] | _______________________________________________^ [INFO] [stdout] 73 | | ) { [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 69 ~ if new_head.0 == 0 || new_head.0 == SCREEN_HEIGHT - 1 || [INFO] [stdout] 70 | new_head.1 == 0 || new_head.1 == SCREEN_WIDTH - 1 || [INFO] [stdout] 71 ~ snake[1..].contains(&new_head) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{stdout, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{stdout, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tail` [INFO] [stdout] --> src/main.rs:87:21 [INFO] [stdout] | [INFO] [stdout] 87 | let tail = snake.pop().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tail` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tail` [INFO] [stdout] --> src/main.rs:87:21 [INFO] [stdout] | [INFO] [stdout] 87 | let tail = snake.pop().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tail` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.85s [INFO] running `Command { std: "docker" "inspect" "b8916403d8f5279c0e0618871ecef7f033a3e148bd92c3cc9fa7ffeab8e21109", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8916403d8f5279c0e0618871ecef7f033a3e148bd92c3cc9fa7ffeab8e21109", kill_on_drop: false }` [INFO] [stdout] b8916403d8f5279c0e0618871ecef7f033a3e148bd92c3cc9fa7ffeab8e21109