[INFO] cloning repository https://github.com/eckshton/snake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eckshton/snake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feckshton%2Fsnake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feckshton%2Fsnake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0664a0a2f8fe4c2ca5753692614a7798f46aa409
[INFO] linting eckshton/snake/0664a0a2f8fe4c2ca5753692614a7798f46aa409 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feckshton%2Fsnake" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/eckshton/snake
[INFO] finished tweaking git repo https://github.com/eckshton/snake
[INFO] tweaked toml for git repo https://github.com/eckshton/snake written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eckshton/snake on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eckshton/snake 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" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded crossfont v0.5.1
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[INFO] running `Command { std: "docker" "start" "-a" "3ba34c0f1a318b8bcdadeb3fd9ffbbe9efd754c08ef63b427cacb4924d6d0f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ba34c0f1a318b8bcdadeb3fd9ffbbe9efd754c08ef63b427cacb4924d6d0f81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba34c0f1a318b8bcdadeb3fd9ffbbe9efd754c08ef63b427cacb4924d6d0f81", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]   --> src/GLium.rs:58:23
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn new_colbuf(self: &Self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout]    = note: `#[warn(clippy::needless_arbitrary_self_type)]` on by default
[INFO] [stdout] help: remove the type
[INFO] [stdout]    |
[INFO] [stdout] 58 -     pub fn new_colbuf(self: &Self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout] 58 +     pub fn new_colbuf(&self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]   --> src/GLium.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new_colbuf_dyn(self: &Self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout] help: remove the type
[INFO] [stdout]    |
[INFO] [stdout] 64 -     pub fn new_colbuf_dyn(self: &Self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout] 64 +     pub fn new_colbuf_dyn(&self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]   --> src/GLium.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn draw(self: &Self, colbufs: &[&ColBuffer]) {
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout] help: remove the type
[INFO] [stdout]    |
[INFO] [stdout] 70 -     pub fn draw(self: &Self, colbufs: &[&ColBuffer]) {
[INFO] [stdout] 70 +     pub fn draw(&self, colbufs: &[&ColBuffer]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]    --> src/game.rs:116:18
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn eat_apple(self: &mut Self) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout] help: remove the type
[INFO] [stdout]     |
[INFO] [stdout] 116 -     fn eat_apple(self: &mut Self) {
[INFO] [stdout] 116 +     fn eat_apple(&mut self) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]    --> src/game.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn step(self: &mut Self, i: Option<Dir>) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout] help: remove the type
[INFO] [stdout]     |
[INFO] [stdout] 140 -     pub fn step(self: &mut Self, i: Option<Dir>) {
[INFO] [stdout] 140 +     pub fn step(&mut self, i: Option<Dir>) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]   --> src/GLium.rs:58:23
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn new_colbuf(self: &Self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout]    = note: `#[warn(clippy::needless_arbitrary_self_type)]` on by default
[INFO] [stdout] help: remove the type
[INFO] [stdout]    |
[INFO] [stdout] 58 -     pub fn new_colbuf(self: &Self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout] 58 +     pub fn new_colbuf(&self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]   --> src/GLium.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn new_colbuf_dyn(self: &Self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout] help: remove the type
[INFO] [stdout]    |
[INFO] [stdout] 64 -     pub fn new_colbuf_dyn(self: &Self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout] 64 +     pub fn new_colbuf_dyn(&self, v: &[ColVert], i: &[u16]) -> ColBuffer {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]   --> src/GLium.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn draw(self: &Self, colbufs: &[&ColBuffer]) {
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout] help: remove the type
[INFO] [stdout]    |
[INFO] [stdout] 70 -     pub fn draw(self: &Self, colbufs: &[&ColBuffer]) {
[INFO] [stdout] 70 +     pub fn draw(&self, colbufs: &[&ColBuffer]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]    --> src/game.rs:116:18
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn eat_apple(self: &mut Self) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout] help: remove the type
[INFO] [stdout]     |
[INFO] [stdout] 116 -     fn eat_apple(self: &mut Self) {
[INFO] [stdout] 116 +     fn eat_apple(&mut self) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type of the `self` parameter does not need to be arbitrary
[INFO] [stdout]    --> src/game.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn step(self: &mut Self, i: Option<Dir>) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_arbitrary_self_type
[INFO] [stdout] help: remove the type
[INFO] [stdout]     |
[INFO] [stdout] 140 -     pub fn step(self: &mut Self, i: Option<Dir>) {
[INFO] [stdout] 140 +     pub fn step(&mut self, i: Option<Dir>) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Coords` is never constructed
[INFO] [stdout]   --> src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Coords {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scrn` is never read
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct State {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 28 |     start_pos: StartPos,
[INFO] [stdout] 29 |     scrn: Scrn,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TexVert` is never constructed
[INFO] [stdout]   --> src/GLium.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct TexVert {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tp` is never read
[INFO] [stdout]   --> src/GLium.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct GL {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] 39 |     pub d: Display,
[INFO] [stdout] 40 |     tp: Program,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scrn` is never read
[INFO] [stdout]   --> src/game.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Game {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub scrn: Scrn,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Coords` is never constructed
[INFO] [stdout]   --> src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Coords {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scrn` is never read
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct State {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 28 |     start_pos: StartPos,
[INFO] [stdout] 29 |     scrn: Scrn,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TexVert` is never constructed
[INFO] [stdout]   --> src/GLium.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct TexVert {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tp` is never read
[INFO] [stdout]   --> src/GLium.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct GL {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] 39 |     pub d: Display,
[INFO] [stdout] 40 |     tp: Program,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scrn` is never read
[INFO] [stdout]   --> src/game.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Game {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub scrn: Scrn,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: approximate value of `f{32, 64}::consts::PI` found
[INFO] [stdout]   --> src/game.rs:60:15
[INFO] [stdout]    |
[INFO] [stdout] 60 |         .powf(3.141592653589793);
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using the constant directly
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stdout]    = note: `#[deny(clippy::approx_constant)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/game.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 | /             if ax != self.a.x && ay != self.a.y {
[INFO] [stdout] 123 | |                 if self.b.b[ax as usize][ay as usize] == BMember::Empty {
[INFO] [stdout] 124 | |                     self.a.x = ax;
[INFO] [stdout] 125 | |                     self.a.y = ay;
[INFO] [stdout] ...   |
[INFO] [stdout] 128 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 122 ~             if ax != self.a.x && ay != self.a.y
[INFO] [stdout] 123 ~                 && self.b.b[ax as usize][ay as usize] == BMember::Empty {
[INFO] [stdout] 124 |                     self.a.x = ax;
[INFO] [stdout] 125 |                     self.a.y = ay;
[INFO] [stdout] 126 |                     return
[INFO] [stdout] 127 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/game.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 | /         match i {
[INFO] [stdout] 144 | |             Some(dir) => {
[INFO] [stdout] 145 | |                 self.s.d = dir;
[INFO] [stdout] 146 | |                 self.s.tailinst.push(Instruction { dir, x: self.s.x, y: self.s.y });
[INFO] [stdout] 147 | |             },
[INFO] [stdout] 148 | |             None => ()
[INFO] [stdout] 149 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 143 ~         if let Some(dir) = i {
[INFO] [stdout] 144 +             self.s.d = dir;
[INFO] [stdout] 145 +             self.s.tailinst.push(Instruction { dir, x: self.s.x, y: self.s.y });
[INFO] [stdout] 146 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]    --> src/game.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 | /         match self.b.b[self.s.x as usize][self.s.y as usize] {
[INFO] [stdout] 160 | |             BMember::Snake => self.lost = true,
[INFO] [stdout] 161 | |             _ => ()
[INFO] [stdout] 162 | |         }
[INFO] [stdout]     | |_________^ help: try: `if self.b.b[self.s.x as usize][self.s.y as usize] == BMember::Snake { self.lost = true }`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/game.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 | /         if self.s.tailinst.len() != 0 {
[INFO] [stdout] 179 | |             if self.s.tailinst[0].x == self.s.tx && self.s.tailinst[0].y == self.s.ty {
[INFO] [stdout] 180 | |                 self.s.td = self.s.tailinst[0].dir;
[INFO] [stdout] 181 | |                 self.s.tailinst.remove(0);
[INFO] [stdout] 182 | |             }
[INFO] [stdout] 183 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 178 ~         if self.s.tailinst.len() != 0
[INFO] [stdout] 179 ~             && self.s.tailinst[0].x == self.s.tx && self.s.tailinst[0].y == self.s.ty {
[INFO] [stdout] 180 |                 self.s.td = self.s.tailinst[0].dir;
[INFO] [stdout] 181 |                 self.s.tailinst.remove(0);
[INFO] [stdout] 182 ~             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/game.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 |         if self.s.tailinst.len() != 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.s.tailinst.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     return (
[INFO] [stdout] 41 | |         -1.0 + x as f32 * (2.0 / b.w as f32),
[INFO] [stdout] 42 | |         -1.0 + y as f32 * (2.0 / b.h as f32)
[INFO] [stdout] 43 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 40 ~     (
[INFO] [stdout] 41 +         -1.0 + x as f32 * (2.0 / b.w as f32),
[INFO] [stdout] 42 +         -1.0 + y as f32 * (2.0 / b.h as f32)
[INFO] [stdout] 43 +     )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: approximate value of `f{32, 64}::consts::PI` found
[INFO] [stdout]   --> src/game.rs:60:15
[INFO] [stdout]    |
[INFO] [stdout] 60 |         .powf(3.141592653589793);
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using the constant directly
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stdout]    = note: `#[deny(clippy::approx_constant)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/game.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 | /             if ax != self.a.x && ay != self.a.y {
[INFO] [stdout] 123 | |                 if self.b.b[ax as usize][ay as usize] == BMember::Empty {
[INFO] [stdout] 124 | |                     self.a.x = ax;
[INFO] [stdout] 125 | |                     self.a.y = ay;
[INFO] [stdout] ...   |
[INFO] [stdout] 128 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 122 ~             if ax != self.a.x && ay != self.a.y
[INFO] [stdout] 123 ~                 && self.b.b[ax as usize][ay as usize] == BMember::Empty {
[INFO] [stdout] 124 |                     self.a.x = ax;
[INFO] [stdout] 125 |                     self.a.y = ay;
[INFO] [stdout] 126 |                     return
[INFO] [stdout] 127 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 | /             match bm {
[INFO] [stdout] 128 | |                 Some((v, i)) => {
[INFO] [stdout] 129 | |                     tv.extend(v);
[INFO] [stdout] 130 | |                     ti.extend(i);
[INFO] [stdout] 131 | |                 },
[INFO] [stdout] 132 | |                 _ => ()
[INFO] [stdout] 133 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 127 ~             if let Some((v, i)) = bm {
[INFO] [stdout] 128 +                 tv.extend(v);
[INFO] [stdout] 129 +                 ti.extend(i);
[INFO] [stdout] 130 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 | /             match bm {
[INFO] [stdout] 141 | |                 Some(v) => {
[INFO] [stdout] 142 | |                     tv.extend(v);
[INFO] [stdout] 143 | |                 },
[INFO] [stdout] 144 | |                 _ => ()
[INFO] [stdout] 145 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 140 ~             if let Some(v) = bm {
[INFO] [stdout] 141 +                 tv.extend(v);
[INFO] [stdout] 142 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/game.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 | /         match i {
[INFO] [stdout] 144 | |             Some(dir) => {
[INFO] [stdout] 145 | |                 self.s.d = dir;
[INFO] [stdout] 146 | |                 self.s.tailinst.push(Instruction { dir, x: self.s.x, y: self.s.y });
[INFO] [stdout] 147 | |             },
[INFO] [stdout] 148 | |             None => ()
[INFO] [stdout] 149 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 143 ~         if let Some(dir) = i {
[INFO] [stdout] 144 +             self.s.d = dir;
[INFO] [stdout] 145 +             self.s.tailinst.push(Instruction { dir, x: self.s.x, y: self.s.y });
[INFO] [stdout] 146 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]    --> src/game.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 | /         match self.b.b[self.s.x as usize][self.s.y as usize] {
[INFO] [stdout] 160 | |             BMember::Snake => self.lost = true,
[INFO] [stdout] 161 | |             _ => ()
[INFO] [stdout] 162 | |         }
[INFO] [stdout]     | |_________^ help: try: `if self.b.b[self.s.x as usize][self.s.y as usize] == BMember::Snake { self.lost = true }`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/game.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 | /         if self.s.tailinst.len() != 0 {
[INFO] [stdout] 179 | |             if self.s.tailinst[0].x == self.s.tx && self.s.tailinst[0].y == self.s.ty {
[INFO] [stdout] 180 | |                 self.s.td = self.s.tailinst[0].dir;
[INFO] [stdout] 181 | |                 self.s.tailinst.remove(0);
[INFO] [stdout] 182 | |             }
[INFO] [stdout] 183 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 178 ~         if self.s.tailinst.len() != 0
[INFO] [stdout] 179 ~             && self.s.tailinst[0].x == self.s.tx && self.s.tailinst[0].y == self.s.ty {
[INFO] [stdout] 180 |                 self.s.td = self.s.tailinst[0].dir;
[INFO] [stdout] 181 |                 self.s.tailinst.remove(0);
[INFO] [stdout] 182 ~             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `snakebot` (bin "snakebot" test) due to 1 previous error; 21 warnings emitted
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/game.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 |         if self.s.tailinst.len() != 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.s.tailinst.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:178:18
[INFO] [stdout]     |
[INFO] [stdout] 178 |     recalc_board(&gl, &s.game, &mut s.dynamic_colbuf, true);
[INFO] [stdout]     |                  ^^^ help: change this to: `gl`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     return (
[INFO] [stdout] 41 | |         -1.0 + x as f32 * (2.0 / b.w as f32),
[INFO] [stdout] 42 | |         -1.0 + y as f32 * (2.0 / b.h as f32)
[INFO] [stdout] 43 | |     )
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 40 ~     (
[INFO] [stdout] 41 +         -1.0 + x as f32 * (2.0 / b.w as f32),
[INFO] [stdout] 42 +         -1.0 + y as f32 * (2.0 / b.h as f32)
[INFO] [stdout] 43 +     )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]    --> src/main.rs:224:18
[INFO] [stdout]     |
[INFO] [stdout] 224 |               } => match k.state {
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 225 | |                 ElementState::Pressed => input(&mut state, k.virtual_keycode),
[INFO] [stdout] 226 | |                 _ => ()
[INFO] [stdout] 227 | |             },
[INFO] [stdout]     | |_____________^ help: try: `if k.state == ElementState::Pressed { input(&mut state, k.virtual_keycode) }`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `GLium` should have a snake case name
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | mod GLium;
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case: `glium`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 | /             match bm {
[INFO] [stdout] 128 | |                 Some((v, i)) => {
[INFO] [stdout] 129 | |                     tv.extend(v);
[INFO] [stdout] 130 | |                     ti.extend(i);
[INFO] [stdout] 131 | |                 },
[INFO] [stdout] 132 | |                 _ => ()
[INFO] [stdout] 133 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 127 ~             if let Some((v, i)) = bm {
[INFO] [stdout] 128 +                 tv.extend(v);
[INFO] [stdout] 129 +                 ti.extend(i);
[INFO] [stdout] 130 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 | /             match bm {
[INFO] [stdout] 141 | |                 Some(v) => {
[INFO] [stdout] 142 | |                     tv.extend(v);
[INFO] [stdout] 143 | |                 },
[INFO] [stdout] 144 | |                 _ => ()
[INFO] [stdout] 145 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 140 ~             if let Some(v) = bm {
[INFO] [stdout] 141 +                 tv.extend(v);
[INFO] [stdout] 142 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:178:18
[INFO] [stdout]     |
[INFO] [stdout] 178 |     recalc_board(&gl, &s.game, &mut s.dynamic_colbuf, true);
[INFO] [stdout]     |                  ^^^ help: change this to: `gl`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]    --> src/main.rs:224:18
[INFO] [stdout]     |
[INFO] [stdout] 224 |               } => match k.state {
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 225 | |                 ElementState::Pressed => input(&mut state, k.virtual_keycode),
[INFO] [stdout] 226 | |                 _ => ()
[INFO] [stdout] 227 | |             },
[INFO] [stdout]     | |_____________^ help: try: `if k.state == ElementState::Pressed { input(&mut state, k.virtual_keycode) }`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `GLium` should have a snake case name
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | mod GLium;
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case: `glium`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `snakebot` (bin "snakebot") due to 1 previous error; 21 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "aa4b969a3e25b241d31a0613f7cf44a378b7e7bdb6eb2d035f3f6b17ac1aaa13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa4b969a3e25b241d31a0613f7cf44a378b7e7bdb6eb2d035f3f6b17ac1aaa13", kill_on_drop: false }`
[INFO] [stdout] aa4b969a3e25b241d31a0613f7cf44a378b7e7bdb6eb2d035f3f6b17ac1aaa13