[INFO] cloning repository https://github.com/illemonati/snake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/illemonati/snake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fillemonati%2Fsnake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fillemonati%2Fsnake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65b94cca9c3ffe7d48859e2f304e1a0b2cf37c6e
[INFO] testing illemonati/snake against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fillemonati%2Fsnake" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/illemonati/snake on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/illemonati/snake
[INFO] finished tweaking git repo https://github.com/illemonati/snake
[INFO] tweaked toml for git repo https://github.com/illemonati/snake written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/illemonati/snake already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 15cd40d731a301a414eaef3a053aee28d4544ecde03cd0acec07c97ea3ba8236
[INFO] running `Command { std: "docker" "start" "-a" "15cd40d731a301a414eaef3a053aee28d4544ecde03cd0acec07c97ea3ba8236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15cd40d731a301a414eaef3a053aee28d4544ecde03cd0acec07c97ea3ba8236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15cd40d731a301a414eaef3a053aee28d4544ecde03cd0acec07c97ea3ba8236", kill_on_drop: false }`
[INFO] [stdout] 15cd40d731a301a414eaef3a053aee28d4544ecde03cd0acec07c97ea3ba8236
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", 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] a53fc0bab9841732e890ef9f52173b6603d693f88a8e3ba94aca10cb1c9d201f
[INFO] running `Command { std: "docker" "start" "-a" "a53fc0bab9841732e890ef9f52173b6603d693f88a8e3ba94aca10cb1c9d201f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling gif v0.10.0
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]    Compiling tempfile v3.0.3
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling syn v0.15.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rusttype v0.4.3
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling piston2d-graphics v0.26.0
[INFO] [stderr]    Compiling wayland-sys v0.12.5
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling glutin v0.14.0
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling wayland-kbd v0.13.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling wayland-window v0.13.3
[INFO] [stderr]    Compiling winit v0.12.0
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.53.0
[INFO] [stderr]    Compiling pistoncore-input v0.21.0
[INFO] [stderr]    Compiling pistoncore-window v0.32.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.37.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.47.0
[INFO] [stderr]    Compiling piston v0.37.0
[INFO] [stderr]    Compiling snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `piston::window::WindowSettings`
[INFO] [stdout]  --> src/Game.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use piston::window::WindowSettings;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `piston::event_loop::*`
[INFO] [stdout]  --> src/Game.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use piston::event_loop::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glutin_window::GlutinWindow`
[INFO] [stdout]   --> src/Game.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use glutin_window::GlutinWindow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenGL`
[INFO] [stdout]   --> src/Game.rs:11:35
[INFO] [stdout]    |
[INFO] [stdout] 11 | use opengl_graphics::{GlGraphics, OpenGL};
[INFO] [stdout]    |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `graphics` is imported redundantly
[INFO] [stdout]   --> src/Game.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 2  | extern crate graphics;
[INFO] [stdout]    | ---------------------- the item `graphics` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 23 |         use graphics;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/Game.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |         if (btn == &Button::Keyboard(Key::NumPad1) || btn == &Button::Keyboard(Key::D1)){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/Game.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |         if (btn == &Button::Keyboard(Key::NumPad2) || btn == &Button::Keyboard(Key::D2)){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `piston::window::WindowSettings`
[INFO] [stdout]  --> src/Snake.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use piston::window::WindowSettings;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `piston::event_loop::*`
[INFO] [stdout]  --> src/Snake.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use piston::event_loop::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glutin_window::GlutinWindow`
[INFO] [stdout]   --> src/Snake.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use glutin_window::GlutinWindow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenGL`
[INFO] [stdout]   --> src/Snake.rs:11:35
[INFO] [stdout]    |
[INFO] [stdout] 11 | use opengl_graphics::{GlGraphics, OpenGL};
[INFO] [stdout]    |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]   --> src/Snake.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::iter::FromIterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `graphics` is imported redundantly
[INFO] [stdout]   --> src/Snake.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 2  | extern crate graphics;
[INFO] [stdout]    | ---------------------- the item `graphics` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 26 |         use graphics;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/main.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |         if let Some(u) = e.update_args() {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Game` should have a snake case name
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | mod Game;
[INFO] [stdout]    |     ^^^^ help: convert the identifier to snake case: `game`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Snake` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | mod Snake;
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to snake case (notice the capitalization): `snake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `GREEN` should have a snake case name
[INFO] [stdout]   --> src/Game.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let GREEN: [f32; 4] = [0.0, 1.0, 0.0, 1.0];
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `green`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `RED` should have a snake case name
[INFO] [stdout]   --> src/Snake.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let RED: [f32; 4] = [1.0,0.0,0.0,1.0];
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `red`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.45s
[INFO] running `Command { std: "docker" "inspect" "a53fc0bab9841732e890ef9f52173b6603d693f88a8e3ba94aca10cb1c9d201f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53fc0bab9841732e890ef9f52173b6603d693f88a8e3ba94aca10cb1c9d201f", kill_on_drop: false }`
[INFO] [stdout] a53fc0bab9841732e890ef9f52173b6603d693f88a8e3ba94aca10cb1c9d201f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1b7e76730c769f0ca61dbc71b13dbf7f3d4d7aeab67a5f42894dd55688f404c
[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" "a1b7e76730c769f0ca61dbc71b13dbf7f3d4d7aeab67a5f42894dd55688f404c", kill_on_drop: false }`
[INFO] [stderr]    Compiling snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `piston::window::WindowSettings`
[INFO] [stdout]  --> src/Game.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use piston::window::WindowSettings;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `piston::event_loop::*`
[INFO] [stdout]  --> src/Game.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use piston::event_loop::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glutin_window::GlutinWindow`
[INFO] [stdout]   --> src/Game.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use glutin_window::GlutinWindow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenGL`
[INFO] [stdout]   --> src/Game.rs:11:35
[INFO] [stdout]    |
[INFO] [stdout] 11 | use opengl_graphics::{GlGraphics, OpenGL};
[INFO] [stdout]    |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `graphics` is imported redundantly
[INFO] [stdout]   --> src/Game.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 2  | extern crate graphics;
[INFO] [stdout]    | ---------------------- the item `graphics` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 23 |         use graphics;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/Game.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |         if (btn == &Button::Keyboard(Key::NumPad1) || btn == &Button::Keyboard(Key::D1)){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/Game.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |         if (btn == &Button::Keyboard(Key::NumPad2) || btn == &Button::Keyboard(Key::D2)){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `piston::window::WindowSettings`
[INFO] [stdout]  --> src/Snake.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use piston::window::WindowSettings;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `piston::event_loop::*`
[INFO] [stdout]  --> src/Snake.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use piston::event_loop::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `glutin_window::GlutinWindow`
[INFO] [stdout]   --> src/Snake.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use glutin_window::GlutinWindow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenGL`
[INFO] [stdout]   --> src/Snake.rs:11:35
[INFO] [stdout]    |
[INFO] [stdout] 11 | use opengl_graphics::{GlGraphics, OpenGL};
[INFO] [stdout]    |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]   --> src/Snake.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::iter::FromIterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `graphics` is imported redundantly
[INFO] [stdout]   --> src/Snake.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 2  | extern crate graphics;
[INFO] [stdout]    | ---------------------- the item `graphics` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 26 |         use graphics;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/main.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |         if let Some(u) = e.update_args() {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Game` should have a snake case name
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | mod Game;
[INFO] [stdout]    |     ^^^^ help: convert the identifier to snake case: `game`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Snake` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | mod Snake;
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to snake case (notice the capitalization): `snake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `GREEN` should have a snake case name
[INFO] [stdout]   --> src/Game.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let GREEN: [f32; 4] = [0.0, 1.0, 0.0, 1.0];
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `green`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `RED` should have a snake case name
[INFO] [stdout]   --> src/Snake.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let RED: [f32; 4] = [1.0,0.0,0.0,1.0];
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `red`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "a1b7e76730c769f0ca61dbc71b13dbf7f3d4d7aeab67a5f42894dd55688f404c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1b7e76730c769f0ca61dbc71b13dbf7f3d4d7aeab67a5f42894dd55688f404c", kill_on_drop: false }`
[INFO] [stdout] a1b7e76730c769f0ca61dbc71b13dbf7f3d4d7aeab67a5f42894dd55688f404c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c27bb0386efb5729ecf4b7823a41ae648063642dbffc19c7b4295e8832a2ac38
[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" "c27bb0386efb5729ecf4b7823a41ae648063642dbffc19c7b4295e8832a2ac38", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `piston::window::WindowSettings`
[INFO] [stderr]  --> src/Game.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use piston::window::WindowSettings;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::event_loop::*`
[INFO] [stderr]  --> src/Game.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use piston::event_loop::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `glutin_window::GlutinWindow`
[INFO] [stderr]   --> src/Game.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use glutin_window::GlutinWindow;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenGL`
[INFO] [stderr]   --> src/Game.rs:11:35
[INFO] [stderr]    |
[INFO] [stderr] 11 | use opengl_graphics::{GlGraphics, OpenGL};
[INFO] [stderr]    |                                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]   --> src/Game.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 2  | extern crate graphics;
[INFO] [stderr]    | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 23 |         use graphics;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/Game.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |         if (btn == &Button::Keyboard(Key::NumPad1) || btn == &Button::Keyboard(Key::D1)){
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/Game.rs:54:12
[INFO] [stderr]    |
[INFO] [stderr] 54 |         if (btn == &Button::Keyboard(Key::NumPad2) || btn == &Button::Keyboard(Key::D2)){
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::window::WindowSettings`
[INFO] [stderr]  --> src/Snake.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use piston::window::WindowSettings;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::event_loop::*`
[INFO] [stderr]  --> src/Snake.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use piston::event_loop::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `glutin_window::GlutinWindow`
[INFO] [stderr]   --> src/Snake.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use glutin_window::GlutinWindow;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OpenGL`
[INFO] [stderr]   --> src/Snake.rs:11:35
[INFO] [stderr]    |
[INFO] [stderr] 11 | use opengl_graphics::{GlGraphics, OpenGL};
[INFO] [stderr]    |                                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]   --> src/Snake.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::iter::FromIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]   --> src/Snake.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 2  | extern crate graphics;
[INFO] [stderr]    | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 26 |         use graphics;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]   --> src/main.rs:45:21
[INFO] [stderr]    |
[INFO] [stderr] 45 |         if let Some(u) = e.update_args() {
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `Game` should have a snake case name
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | mod Game;
[INFO] [stderr]    |     ^^^^ help: convert the identifier to snake case: `game`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `Snake` should have a snake case name
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | mod Snake;
[INFO] [stderr]    |     ^^^^^ help: convert the identifier to snake case (notice the capitalization): `snake`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `GREEN` should have a snake case name
[INFO] [stderr]   --> src/Game.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let GREEN: [f32; 4] = [0.0, 1.0, 0.0, 1.0];
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `green`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `RED` should have a snake case name
[INFO] [stderr]   --> src/Snake.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let RED: [f32; 4] = [1.0,0.0,0.0,1.0];
[INFO] [stderr]    |             ^^^ help: convert the identifier to snake case: `red`
[INFO] [stderr] 
[INFO] [stderr] warning: `snake` (bin "snake" test) generated 18 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snake-d4a331f240133970)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c27bb0386efb5729ecf4b7823a41ae648063642dbffc19c7b4295e8832a2ac38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c27bb0386efb5729ecf4b7823a41ae648063642dbffc19c7b4295e8832a2ac38", kill_on_drop: false }`
[INFO] [stdout] c27bb0386efb5729ecf4b7823a41ae648063642dbffc19c7b4295e8832a2ac38