[INFO] cloning repository https://github.com/dasilvar93/2048Clone
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dasilvar93/2048Clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdasilvar93%2F2048Clone", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdasilvar93%2F2048Clone'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b73546259d0d5b69bb5046f32f4ed1442e54b3b0
[INFO] checking dasilvar93/2048Clone against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdasilvar93%2F2048Clone" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dasilvar93/2048Clone on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dasilvar93/2048Clone
[INFO] finished tweaking git repo https://github.com/dasilvar93/2048Clone
[INFO] tweaked toml for git repo https://github.com/dasilvar93/2048Clone written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/dasilvar93/2048Clone already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9799eee34b5e3110e138471be59d7ab42561332d29c8e2b784bb507cb07e6ae6
[INFO] running `Command { std: "docker" "start" "-a" "9799eee34b5e3110e138471be59d7ab42561332d29c8e2b784bb507cb07e6ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9799eee34b5e3110e138471be59d7ab42561332d29c8e2b784bb507cb07e6ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9799eee34b5e3110e138471be59d7ab42561332d29c8e2b784bb507cb07e6ae6", kill_on_drop: false }`
[INFO] [stdout] 9799eee34b5e3110e138471be59d7ab42561332d29c8e2b784bb507cb07e6ae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59a4c0a61ddb5b303cf0a595e610da881dc7a2f1ce18304e19d7caa24ca5a016
[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" "59a4c0a61ddb5b303cf0a595e610da881dc7a2f1ce18304e19d7caa24ca5a016", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling getrandom v0.1.10
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking termion v1.5.4
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]     Checking clone2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/run.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::char`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::char;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::board::Board`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::board::Board;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tile::Tile`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::tile::Tile;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::game_over`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::run::game_over;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::mov`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::run::mov;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::Direction::Up`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::run::Direction::Up;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::Direction::Down`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::run::Direction::Down;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::Direction::Left`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use crate::run::Direction::Left;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::Direction::Right`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::run::Direction::Right;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `indoc::indoc`
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use indoc::indoc;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/run.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::char`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::char;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::board::Board`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::board::Board;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tile::Tile`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::tile::Tile;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::game_over`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::run::game_over;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::mov`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::run::mov;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::Direction::Up`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::run::Direction::Up;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::Direction::Down`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::run::Direction::Down;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::Direction::Left`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use crate::run::Direction::Left;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::run::Direction::Right`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::run::Direction::Right;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `indoc::indoc`
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use indoc::indoc;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `Up` is named the same as one of the variants of the type `Direction`
[INFO] [stdout]   --> src/run.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         ^^ help: to match on the variant, qualify the path: `Direction::Up`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `Down` is named the same as one of the variants of the type `Direction`
[INFO] [stdout]   --> src/run.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout]    |         ^^^^ help: to match on the variant, qualify the path: `Direction::Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `Left` is named the same as one of the variants of the type `Direction`
[INFO] [stdout]   --> src/run.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Left => board.merge_left(),
[INFO] [stdout]    |         ^^^^ help: to match on the variant, qualify the path: `Direction::Left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `Right` is named the same as one of the variants of the type `Direction`
[INFO] [stdout]   --> src/run.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Right => board.merge_right()
[INFO] [stdout]    |         ^^^^^ help: to match on the variant, qualify the path: `Direction::Right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/run.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         -- matches any value
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout]    |         ^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/run.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         -- matches any value
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout] 66 |         Left => board.merge_left(),
[INFO] [stdout]    |         ^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/run.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         -- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 67 |         Right => board.merge_right()
[INFO] [stdout]    |         ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_game_over`
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut is_game_over = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_game_over`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Up`
[INFO] [stdout]   --> src/run.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_Up`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Down`
[INFO] [stdout]   --> src/run.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Left`
[INFO] [stdout]   --> src/run.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Left => board.merge_left(),
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_Left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Right`
[INFO] [stdout]   --> src/run.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Right => board.merge_right()
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_Right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut is_game_over = false;
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Up` should have a snake case name
[INFO] [stdout]   --> src/run.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case (notice the capitalization): `up`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Down` should have a snake case name
[INFO] [stdout]   --> src/run.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout]    |         ^^^^ help: convert the identifier to snake case: `down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Left` should have a snake case name
[INFO] [stdout]   --> src/run.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Left => board.merge_left(),
[INFO] [stdout]    |         ^^^^ help: convert the identifier to snake case: `left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Right` should have a snake case name
[INFO] [stdout]   --> src/run.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Right => board.merge_right()
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `Up` is named the same as one of the variants of the type `Direction`
[INFO] [stdout]   --> src/run.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         ^^ help: to match on the variant, qualify the path: `Direction::Up`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `Down` is named the same as one of the variants of the type `Direction`
[INFO] [stdout]   --> src/run.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout]    |         ^^^^ help: to match on the variant, qualify the path: `Direction::Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `Left` is named the same as one of the variants of the type `Direction`
[INFO] [stdout]   --> src/run.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Left => board.merge_left(),
[INFO] [stdout]    |         ^^^^ help: to match on the variant, qualify the path: `Direction::Left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0170]: pattern binding `Right` is named the same as one of the variants of the type `Direction`
[INFO] [stdout]   --> src/run.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Right => board.merge_right()
[INFO] [stdout]    |         ^^^^^ help: to match on the variant, qualify the path: `Direction::Right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/run.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         -- matches any value
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout]    |         ^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/run.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         -- matches any value
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout] 66 |         Left => board.merge_left(),
[INFO] [stdout]    |         ^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/run.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         -- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 67 |         Right => board.merge_right()
[INFO] [stdout]    |         ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_game_over`
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut is_game_over = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_game_over`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Up`
[INFO] [stdout]   --> src/run.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_Up`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Down`
[INFO] [stdout]   --> src/run.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Left`
[INFO] [stdout]   --> src/run.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Left => board.merge_left(),
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_Left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Right`
[INFO] [stdout]   --> src/run.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Right => board.merge_right()
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_Right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut is_game_over = false;
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Up` should have a snake case name
[INFO] [stdout]   --> src/run.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Up => board.merge_up(),
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case (notice the capitalization): `up`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Down` should have a snake case name
[INFO] [stdout]   --> src/run.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Down => board.merge_down(),
[INFO] [stdout]    |         ^^^^ help: convert the identifier to snake case: `down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Left` should have a snake case name
[INFO] [stdout]   --> src/run.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         Left => board.merge_left(),
[INFO] [stdout]    |         ^^^^ help: convert the identifier to snake case: `left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Right` should have a snake case name
[INFO] [stdout]   --> src/run.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Right => board.merge_right()
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0170`.
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.23s
[INFO] running `Command { std: "docker" "inspect" "59a4c0a61ddb5b303cf0a595e610da881dc7a2f1ce18304e19d7caa24ca5a016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59a4c0a61ddb5b303cf0a595e610da881dc7a2f1ce18304e19d7caa24ca5a016", kill_on_drop: false }`
[INFO] [stdout] 59a4c0a61ddb5b303cf0a595e610da881dc7a2f1ce18304e19d7caa24ca5a016