[INFO] cloning repository https://github.com/kennoath/ksynth2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kennoath/ksynth2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennoath%2Fksynth2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennoath%2Fksynth2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49cd602833b79b15260aadef0ba11d535c89cf2b
[INFO] testing kennoath/ksynth2 against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennoath%2Fksynth2" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kennoath/ksynth2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kennoath/ksynth2
[INFO] finished tweaking git repo https://github.com/kennoath/ksynth2
[INFO] tweaked toml for git repo https://github.com/kennoath/ksynth2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kennoath/ksynth2 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded palette v0.2.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c2a743df5a98d7c7930d7461e2d3421cc44453e863c507b3e4bc11f0f1566a8
[INFO] running `Command { std: "docker" "start" "-a" "0c2a743df5a98d7c7930d7461e2d3421cc44453e863c507b3e4bc11f0f1566a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c2a743df5a98d7c7930d7461e2d3421cc44453e863c507b3e4bc11f0f1566a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c2a743df5a98d7c7930d7461e2d3421cc44453e863c507b3e4bc11f0f1566a8", kill_on_drop: false }`
[INFO] [stdout] 0c2a743df5a98d7c7930d7461e2d3421cc44453e863c507b3e4bc11f0f1566a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca21df9a2bf061dc3b2515faff41243fe486f1a2f9d4afcb8b04c41fa49fbe81
[INFO] running `Command { std: "docker" "start" "-a" "ca21df9a2bf061dc3b2515faff41243fe486f1a2f9d4afcb8b04c41fa49fbe81", kill_on_drop: false }`
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[INFO] [stderr]    Compiling ksynth2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/kimg.rs:54:34
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut data = vec![0u8; (3*self.w*self.h)];
[INFO] [stdout]    |                                  ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 54 -         let mut data = vec![0u8; (3*self.w*self.h)];
[INFO] [stdout] 54 +         let mut data = vec![0u8; 3*self.w*self.h];
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/kimg.rs:180:34
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let mut data = vec![0u8; (4*self.w*self.h)];
[INFO] [stdout]     |                                  ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 -         let mut data = vec![0u8; (4*self.w*self.h)];
[INFO] [stdout] 180 +         let mut data = vec![0u8; 4*self.w*self.h];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rustfft::num_complex::ComplexFloat`
[INFO] [stdout]  --> src/synth_gui.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rustfft::num_complex::ComplexFloat;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/kapp.rs:139:14
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let (mut prod, mut cons) = rb.split();
[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 does not need to be mutable
[INFO] [stdout]    --> src/kapp.rs:139:24
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let (mut prod, mut cons) = rb.split();
[INFO] [stdout]     |                        ----^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hc_vol`
[INFO] [stdout]    --> src/synth_gui.rs:336:25
[INFO] [stdout]     |
[INFO] [stdout] 336 |                     let hc_vol = db_to_vol(hc_db);
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hc_vol`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_track`
[INFO] [stdout]    --> src/widgets.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let c_track = v4(0.4, 0.4, 0.4, 1.0);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c_track`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_bg`
[INFO] [stdout]    --> src/widgets.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let c_bg = v4(0.3, 0.3, 0.3, 1.0);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_c_bg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_inner`
[INFO] [stdout]    --> src/widgets.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let r_inner = 0.8;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_r_inner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DEG_TO_RAD` is never used
[INFO] [stdout]  --> src/kmath.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub static DEG_TO_RAD: f32 = 180.0 / PI;
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unlerp` is never used
[INFO] [stdout]   --> src/kmath.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn unlerp(x: f32, t1: f32, t2: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remap` is never used
[INFO] [stdout]   --> src/kmath.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn remap(x: f32, from_low: f32, from_high: f32, to_low: f32, to_high: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cubic_bezier` is never used
[INFO] [stdout]   --> src/kmath.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn cubic_bezier(start: Vec2, c1: Vec2, c2: Vec2, end: Vec2, t: f32) -> Vec2 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `smoothstep` is never used
[INFO] [stdout]   --> src/kmath.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn smoothstep(t: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `floorfrac` is never used
[INFO] [stdout]   --> src/kmath.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |  pub fn floorfrac(x: f32) -> (f32, f32) {
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `khash2i` is never used
[INFO] [stdout]   --> src/kmath.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn khash2i(x: i32, y: i32, seed: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kuniform` is never used
[INFO] [stdout]   --> src/kmath.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn kuniform(seed: u32, min: f32, max: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `chance` is never used
[INFO] [stdout]   --> src/kmath.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn chance(seed: u32, percent: f32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `noise1d` is never used
[INFO] [stdout]   --> src/kmath.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn noise1d(t: f32, seed: u32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `noise2d` is never used
[INFO] [stdout]   --> src/kmath.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn noise2d(x: f32, y: f32, seed: u32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `v3` is never used
[INFO] [stdout]   --> src/kmath.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |  pub fn v3(x: f32, y: f32, z: f32) -> Vec3 {Vec3{x,y,z}}
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImageBuffer` is never constructed
[INFO] [stdout]  --> src/kimg.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ImageBuffer {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_px`, `get_px`, `new_from_file`, and `dump_to_file` are never used
[INFO] [stdout]   --> src/kimg.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ImageBuffer {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(w: usize, h: usize) -> ImageBuffer {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn set_px(&mut self, x: usize, y: usize, val: (u8, u8, u8)) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get_px(&self, x: usize, y: usize) -> (u8, u8, u8) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn new_from_file(path_str: &str) -> ImageBuffer {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn dump_to_file(&self, path_str: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `get_px`, `new_from_bytes`, `new_from_file`, `bytes_transpose`, and `dump_to_file` are never used
[INFO] [stdout]    --> src/kimg.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 92  | impl ImageBufferA {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn get_px(&self, x: usize, y: usize) -> (u8, u8, u8, u8) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn new_from_bytes(bytes: &[u8]) -> Option<ImageBufferA> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     pub fn new_from_file(path_str: &str) -> Option<ImageBufferA> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn bytes_transpose(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn dump_to_file(&self, path_str: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `put_quad`, `put_line`, `put_poly_part`, `put_semicircle`, and `put_vpill` are never used
[INFO] [stdout]    --> src/renderers/simple_renderer.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | impl SimpleCanvas {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     pub fn put_quad(&mut self, a: Vec2, b: Vec2, c: Vec2, d: Vec2, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn put_line(&mut self, a: Vec2, b: Vec2, w: f32, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     pub fn put_poly_part(&mut self, center: Vec2, radius: f32, n_sides: i32, n_to_draw: i32, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 185 |     pub fn put_semicircle(&mut self, center: Vec2, radius: f32, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 |     pub fn put_vpill(&mut self, c: Vec2, w: f32, h: f32, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push_str`, `pushl`, and `pushc` are never used
[INFO] [stdout]   --> src/renderers/font_rendering.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl GlyphBuffer {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn push_str(&mut self, s: &str, mut x: f32, y: f32, w: f32, h: f32, d: f32, colour: Vec4) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn pushl(&mut self, r: Rect, s: &str, a: f32, c: Vec4, d: f32) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn pushc(&mut self, mut r: Rect, s: &str, a: f32, c: Vec4, d: f32) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `key_held`, `key_rising`, `key_press_or_repeat`, and `key_falling` are never used
[INFO] [stdout]   --> src/kapp.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl FrameInputState {
[INFO] [stdout]    | -------------------- methods in this implementation
[INFO] [stdout] 60 |     pub fn key_held(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn key_rising(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn key_press_or_repeat(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn key_falling(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PriorityQueue` is never constructed
[INFO] [stdout]  --> src/priority_queue.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct PriorityQueue<K: Ord + Clone, V: Clone,> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, `pop`, `downheap`, and `upheap` are never used
[INFO] [stdout]   --> src/priority_queue.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl <K: Ord + Clone,V: Clone> PriorityQueue<K, V> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 6  |     pub fn new() -> PriorityQueue<K, V> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn push(&mut self, k: K, v: V) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn pop(&mut self) -> Option<(K, V)> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn downheap(&mut self, mut idx: usize) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn upheap(&mut self, mut idx: usize) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FloatSlider` is never constructed
[INFO] [stdout]  --> src/widgets.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FloatSlider {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_val`, `curr`, and `frame` are never used
[INFO] [stdout]   --> src/widgets.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl FloatSlider {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(default: f32, min: f32, max: f32, label: String) -> FloatSlider {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn set_val(&mut self, val: f32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn curr(&self) -> f32 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn frame(&mut self, inputs: &FrameInputState, outputs: &mut FrameOutputs, r: Rect) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/audio.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |     let A = a * sample_rate as f32;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `D` should have a snake case name
[INFO] [stdout]    --> src/audio.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     let D = d * sample_rate as f32;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S` should have a snake case name
[INFO] [stdout]    --> src/audio.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 205 |     let S = s;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `R` should have a snake case name
[INFO] [stdout]    --> src/audio.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |     let R = r * sample_rate as f32;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/synth_gui.rs:435:27
[INFO] [stdout]     |
[INFO] [stdout] 435 | pub fn blackman(n: usize, N: usize) -> f32 {
[INFO] [stdout]     |                           ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.29s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "ca21df9a2bf061dc3b2515faff41243fe486f1a2f9d4afcb8b04c41fa49fbe81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca21df9a2bf061dc3b2515faff41243fe486f1a2f9d4afcb8b04c41fa49fbe81", kill_on_drop: false }`
[INFO] [stdout] ca21df9a2bf061dc3b2515faff41243fe486f1a2f9d4afcb8b04c41fa49fbe81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2b9d5efecc14fb68bd54193ab5c7cdcd133335e7e4de2bc2b0437ef68fea903
[INFO] running `Command { std: "docker" "start" "-a" "e2b9d5efecc14fb68bd54193ab5c7cdcd133335e7e4de2bc2b0437ef68fea903", kill_on_drop: false }`
[INFO] [stderr]    Compiling ksynth2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/kimg.rs:54:34
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut data = vec![0u8; (3*self.w*self.h)];
[INFO] [stdout]    |                                  ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 54 -         let mut data = vec![0u8; (3*self.w*self.h)];
[INFO] [stdout] 54 +         let mut data = vec![0u8; 3*self.w*self.h];
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/kimg.rs:180:34
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let mut data = vec![0u8; (4*self.w*self.h)];
[INFO] [stdout]     |                                  ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 180 -         let mut data = vec![0u8; (4*self.w*self.h)];
[INFO] [stdout] 180 +         let mut data = vec![0u8; 4*self.w*self.h];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rustfft::num_complex::ComplexFloat`
[INFO] [stdout]  --> src/synth_gui.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rustfft::num_complex::ComplexFloat;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/kapp.rs:139:14
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let (mut prod, mut cons) = rb.split();
[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 does not need to be mutable
[INFO] [stdout]    --> src/kapp.rs:139:24
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let (mut prod, mut cons) = rb.split();
[INFO] [stdout]     |                        ----^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hc_vol`
[INFO] [stdout]    --> src/synth_gui.rs:336:25
[INFO] [stdout]     |
[INFO] [stdout] 336 |                     let hc_vol = db_to_vol(hc_db);
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hc_vol`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_track`
[INFO] [stdout]    --> src/widgets.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let c_track = v4(0.4, 0.4, 0.4, 1.0);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c_track`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c_bg`
[INFO] [stdout]    --> src/widgets.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let c_bg = v4(0.3, 0.3, 0.3, 1.0);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_c_bg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_inner`
[INFO] [stdout]    --> src/widgets.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let r_inner = 0.8;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_r_inner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DEG_TO_RAD` is never used
[INFO] [stdout]  --> src/kmath.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub static DEG_TO_RAD: f32 = 180.0 / PI;
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unlerp` is never used
[INFO] [stdout]   --> src/kmath.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn unlerp(x: f32, t1: f32, t2: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remap` is never used
[INFO] [stdout]   --> src/kmath.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn remap(x: f32, from_low: f32, from_high: f32, to_low: f32, to_high: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cubic_bezier` is never used
[INFO] [stdout]   --> src/kmath.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn cubic_bezier(start: Vec2, c1: Vec2, c2: Vec2, end: Vec2, t: f32) -> Vec2 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `smoothstep` is never used
[INFO] [stdout]   --> src/kmath.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn smoothstep(t: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `floorfrac` is never used
[INFO] [stdout]   --> src/kmath.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |  pub fn floorfrac(x: f32) -> (f32, f32) {
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `khash2i` is never used
[INFO] [stdout]   --> src/kmath.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn khash2i(x: i32, y: i32, seed: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kuniform` is never used
[INFO] [stdout]   --> src/kmath.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn kuniform(seed: u32, min: f32, max: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `chance` is never used
[INFO] [stdout]   --> src/kmath.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn chance(seed: u32, percent: f32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `noise1d` is never used
[INFO] [stdout]   --> src/kmath.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn noise1d(t: f32, seed: u32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `noise2d` is never used
[INFO] [stdout]   --> src/kmath.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn noise2d(x: f32, y: f32, seed: u32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `v3` is never used
[INFO] [stdout]   --> src/kmath.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |  pub fn v3(x: f32, y: f32, z: f32) -> Vec3 {Vec3{x,y,z}}
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImageBuffer` is never constructed
[INFO] [stdout]  --> src/kimg.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ImageBuffer {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_px`, `get_px`, `new_from_file`, and `dump_to_file` are never used
[INFO] [stdout]   --> src/kimg.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ImageBuffer {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(w: usize, h: usize) -> ImageBuffer {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn set_px(&mut self, x: usize, y: usize, val: (u8, u8, u8)) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get_px(&self, x: usize, y: usize) -> (u8, u8, u8) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn new_from_file(path_str: &str) -> ImageBuffer {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn dump_to_file(&self, path_str: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `get_px`, `new_from_bytes`, `new_from_file`, `bytes_transpose`, and `dump_to_file` are never used
[INFO] [stdout]    --> src/kimg.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 92  | impl ImageBufferA {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn get_px(&self, x: usize, y: usize) -> (u8, u8, u8, u8) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn new_from_bytes(bytes: &[u8]) -> Option<ImageBufferA> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     pub fn new_from_file(path_str: &str) -> Option<ImageBufferA> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn bytes_transpose(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn dump_to_file(&self, path_str: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `put_quad`, `put_line`, `put_poly_part`, `put_semicircle`, and `put_vpill` are never used
[INFO] [stdout]    --> src/renderers/simple_renderer.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | impl SimpleCanvas {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     pub fn put_quad(&mut self, a: Vec2, b: Vec2, c: Vec2, d: Vec2, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn put_line(&mut self, a: Vec2, b: Vec2, w: f32, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     pub fn put_poly_part(&mut self, center: Vec2, radius: f32, n_sides: i32, n_to_draw: i32, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 185 |     pub fn put_semicircle(&mut self, center: Vec2, radius: f32, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 |     pub fn put_vpill(&mut self, c: Vec2, w: f32, h: f32, depth: f32, colour: Vec4) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push_str`, `pushl`, and `pushc` are never used
[INFO] [stdout]   --> src/renderers/font_rendering.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl GlyphBuffer {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn push_str(&mut self, s: &str, mut x: f32, y: f32, w: f32, h: f32, d: f32, colour: Vec4) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn pushl(&mut self, r: Rect, s: &str, a: f32, c: Vec4, d: f32) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn pushc(&mut self, mut r: Rect, s: &str, a: f32, c: Vec4, d: f32) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `key_held`, `key_rising`, `key_press_or_repeat`, and `key_falling` are never used
[INFO] [stdout]   --> src/kapp.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl FrameInputState {
[INFO] [stdout]    | -------------------- methods in this implementation
[INFO] [stdout] 60 |     pub fn key_held(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn key_rising(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn key_press_or_repeat(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn key_falling(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PriorityQueue` is never constructed
[INFO] [stdout]  --> src/priority_queue.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct PriorityQueue<K: Ord + Clone, V: Clone,> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, `pop`, `downheap`, and `upheap` are never used
[INFO] [stdout]   --> src/priority_queue.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl <K: Ord + Clone,V: Clone> PriorityQueue<K, V> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 6  |     pub fn new() -> PriorityQueue<K, V> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn push(&mut self, k: K, v: V) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn pop(&mut self) -> Option<(K, V)> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn downheap(&mut self, mut idx: usize) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn upheap(&mut self, mut idx: usize) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FloatSlider` is never constructed
[INFO] [stdout]  --> src/widgets.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FloatSlider {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_val`, `curr`, and `frame` are never used
[INFO] [stdout]   --> src/widgets.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl FloatSlider {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(default: f32, min: f32, max: f32, label: String) -> FloatSlider {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn set_val(&mut self, val: f32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn curr(&self) -> f32 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn frame(&mut self, inputs: &FrameInputState, outputs: &mut FrameOutputs, r: Rect) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/audio.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |     let A = a * sample_rate as f32;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `D` should have a snake case name
[INFO] [stdout]    --> src/audio.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     let D = d * sample_rate as f32;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S` should have a snake case name
[INFO] [stdout]    --> src/audio.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 205 |     let S = s;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `R` should have a snake case name
[INFO] [stdout]    --> src/audio.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |     let R = r * sample_rate as f32;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/synth_gui.rs:435:27
[INFO] [stdout]     |
[INFO] [stdout] 435 | pub fn blackman(n: usize, N: usize) -> f32 {
[INFO] [stdout]     |                           ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "e2b9d5efecc14fb68bd54193ab5c7cdcd133335e7e4de2bc2b0437ef68fea903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2b9d5efecc14fb68bd54193ab5c7cdcd133335e7e4de2bc2b0437ef68fea903", kill_on_drop: false }`
[INFO] [stdout] e2b9d5efecc14fb68bd54193ab5c7cdcd133335e7e4de2bc2b0437ef68fea903
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c4a8eb2ec5bb546982bad06ca1b80a2496a0a3e2afc473a54fc73c47d0faf7fb
[INFO] running `Command { std: "docker" "start" "-a" "c4a8eb2ec5bb546982bad06ca1b80a2496a0a3e2afc473a54fc73c47d0faf7fb", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/kimg.rs:54:34
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut data = vec![0u8; (3*self.w*self.h)];
[INFO] [stderr]    |                                  ^               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 54 -         let mut data = vec![0u8; (3*self.w*self.h)];
[INFO] [stderr] 54 +         let mut data = vec![0u8; 3*self.w*self.h];
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/kimg.rs:180:34
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let mut data = vec![0u8; (4*self.w*self.h)];
[INFO] [stderr]     |                                  ^               ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 180 -         let mut data = vec![0u8; (4*self.w*self.h)];
[INFO] [stderr] 180 +         let mut data = vec![0u8; 4*self.w*self.h];
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rustfft::num_complex::ComplexFloat`
[INFO] [stderr]  --> src/synth_gui.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use rustfft::num_complex::ComplexFloat;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/kapp.rs:139:14
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let (mut prod, mut cons) = rb.split();
[INFO] [stderr]     |              ----^^^^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/kapp.rs:139:24
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let (mut prod, mut cons) = rb.split();
[INFO] [stderr]     |                        ----^^^^
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hc_vol`
[INFO] [stderr]    --> src/synth_gui.rs:336:25
[INFO] [stderr]     |
[INFO] [stderr] 336 |                     let hc_vol = db_to_vol(hc_db);
[INFO] [stderr]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_hc_vol`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c_track`
[INFO] [stderr]    --> src/widgets.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |         let c_track = v4(0.4, 0.4, 0.4, 1.0);
[INFO] [stderr]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_c_track`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c_bg`
[INFO] [stderr]    --> src/widgets.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |         let c_bg = v4(0.3, 0.3, 0.3, 1.0);
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_c_bg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r_inner`
[INFO] [stderr]    --> src/widgets.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         let r_inner = 0.8;
[INFO] [stderr]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_r_inner`
[INFO] [stderr] 
[INFO] [stderr] warning: static `DEG_TO_RAD` is never used
[INFO] [stderr]  --> src/kmath.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub static DEG_TO_RAD: f32 = 180.0 / PI;
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `unlerp` is never used
[INFO] [stderr]   --> src/kmath.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn unlerp(x: f32, t1: f32, t2: f32) -> f32 {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `remap` is never used
[INFO] [stderr]   --> src/kmath.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn remap(x: f32, from_low: f32, from_high: f32, to_low: f32, to_high: f32) -> f32 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `cubic_bezier` is never used
[INFO] [stderr]   --> src/kmath.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn cubic_bezier(start: Vec2, c1: Vec2, c2: Vec2, end: Vec2, t: f32) -> Vec2 {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `smoothstep` is never used
[INFO] [stderr]   --> src/kmath.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn smoothstep(t: f32) -> f32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `floorfrac` is never used
[INFO] [stderr]   --> src/kmath.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |  pub fn floorfrac(x: f32) -> (f32, f32) {
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `khash2i` is never used
[INFO] [stderr]   --> src/kmath.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn khash2i(x: i32, y: i32, seed: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `kuniform` is never used
[INFO] [stderr]   --> src/kmath.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub fn kuniform(seed: u32, min: f32, max: f32) -> f32 {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `chance` is never used
[INFO] [stderr]   --> src/kmath.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub fn chance(seed: u32, percent: f32) -> bool {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `noise1d` is never used
[INFO] [stderr]   --> src/kmath.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn noise1d(t: f32, seed: u32) -> f32 {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `noise2d` is never used
[INFO] [stderr]   --> src/kmath.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub fn noise2d(x: f32, y: f32, seed: u32) -> f32 {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `v3` is never used
[INFO] [stderr]   --> src/kmath.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |  pub fn v3(x: f32, y: f32, z: f32) -> Vec3 {Vec3{x,y,z}}
[INFO] [stderr]    |         ^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ImageBuffer` is never constructed
[INFO] [stderr]  --> src/kimg.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ImageBuffer {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `set_px`, `get_px`, `new_from_file`, and `dump_to_file` are never used
[INFO] [stderr]   --> src/kimg.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl ImageBuffer {
[INFO] [stderr]    | ---------------- associated items in this implementation
[INFO] [stderr] 15 |     pub fn new(w: usize, h: usize) -> ImageBuffer {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 |     pub fn set_px(&mut self, x: usize, y: usize, val: (u8, u8, u8)) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 |     pub fn get_px(&self, x: usize, y: usize) -> (u8, u8, u8) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 29 |     pub fn new_from_file(path_str: &str) -> ImageBuffer {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |     pub fn dump_to_file(&self, path_str: &str) {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `get_px`, `new_from_bytes`, `new_from_file`, `bytes_transpose`, and `dump_to_file` are never used
[INFO] [stderr]    --> src/kimg.rs:103:12
[INFO] [stderr]     |
[INFO] [stderr] 92  | impl ImageBufferA {
[INFO] [stderr]     | ----------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 103 |     pub fn get_px(&self, x: usize, y: usize) -> (u8, u8, u8, u8) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 107 |     pub fn new_from_bytes(bytes: &[u8]) -> Option<ImageBufferA> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 128 |     pub fn new_from_file(path_str: &str) -> Option<ImageBufferA> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 162 |     pub fn bytes_transpose(&self) -> Vec<u8> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 175 |     pub fn dump_to_file(&self, path_str: &str) {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `put_quad`, `put_line`, `put_poly_part`, `put_semicircle`, and `put_vpill` are never used
[INFO] [stderr]    --> src/renderers/simple_renderer.rs:153:12
[INFO] [stderr]     |
[INFO] [stderr] 108 | impl SimpleCanvas {
[INFO] [stderr]     | ----------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 153 |     pub fn put_quad(&mut self, a: Vec2, b: Vec2, c: Vec2, d: Vec2, depth: f32, colour: Vec4) {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 158 |     pub fn put_line(&mut self, a: Vec2, b: Vec2, w: f32, depth: f32, colour: Vec4) {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 172 |     pub fn put_poly_part(&mut self, center: Vec2, radius: f32, n_sides: i32, n_to_draw: i32, depth: f32, colour: Vec4) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 185 |     pub fn put_semicircle(&mut self, center: Vec2, radius: f32, depth: f32, colour: Vec4) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 191 |     pub fn put_vpill(&mut self, c: Vec2, w: f32, h: f32, depth: f32, colour: Vec4) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `push_str`, `pushl`, and `pushc` are never used
[INFO] [stderr]   --> src/renderers/font_rendering.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 42 | impl GlyphBuffer {
[INFO] [stderr]    | ---------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 51 |     pub fn push_str(&mut self, s: &str, mut x: f32, y: f32, w: f32, h: f32, d: f32, colour: Vec4) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 68 |     pub fn pushl(&mut self, r: Rect, s: &str, a: f32, c: Vec4, d: f32) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 78 |     pub fn pushc(&mut self, mut r: Rect, s: &str, a: f32, c: Vec4, d: f32) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `key_held`, `key_rising`, `key_press_or_repeat`, and `key_falling` are never used
[INFO] [stderr]   --> src/kapp.rs:60:12
[INFO] [stderr]    |
[INFO] [stderr] 59 | impl FrameInputState {
[INFO] [stderr]    | -------------------- methods in this implementation
[INFO] [stderr] 60 |     pub fn key_held(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 63 |     pub fn key_rising(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |     pub fn key_press_or_repeat(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |     pub fn key_falling(&self, keycode: VirtualKeyCode) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PriorityQueue` is never constructed
[INFO] [stderr]  --> src/priority_queue.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct PriorityQueue<K: Ord + Clone, V: Clone,> {
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `push`, `pop`, `downheap`, and `upheap` are never used
[INFO] [stderr]   --> src/priority_queue.rs:6:12
[INFO] [stderr]    |
[INFO] [stderr] 5  | impl <K: Ord + Clone,V: Clone> PriorityQueue<K, V> {
[INFO] [stderr]    | -------------------------------------------------- associated items in this implementation
[INFO] [stderr] 6  |     pub fn new() -> PriorityQueue<K, V> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 10 |     pub fn push(&mut self, k: K, v: V) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 15 |     pub fn pop(&mut self) -> Option<(K, V)> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |     fn downheap(&mut self, mut idx: usize) {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     fn upheap(&mut self, mut idx: usize) {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FloatSlider` is never constructed
[INFO] [stderr]  --> src/widgets.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct FloatSlider {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `set_val`, `curr`, and `frame` are never used
[INFO] [stderr]   --> src/widgets.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl FloatSlider {
[INFO] [stderr]    | ---------------- associated items in this implementation
[INFO] [stderr] 13 |     pub fn new(default: f32, min: f32, max: f32, label: String) -> FloatSlider {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 23 |     pub fn set_val(&mut self, val: f32) {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 27 |     pub fn curr(&self) -> f32 {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 |     pub fn frame(&mut self, inputs: &FrameInputState, outputs: &mut FrameOutputs, r: Rect) -> bool {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/audio.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |     let A = a * sample_rate as f32;
[INFO] [stderr]     |         ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `D` should have a snake case name
[INFO] [stderr]    --> src/audio.rs:204:9
[INFO] [stderr]     |
[INFO] [stderr] 204 |     let D = d * sample_rate as f32;
[INFO] [stderr]     |         ^ help: convert the identifier to snake case: `d`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `S` should have a snake case name
[INFO] [stderr]    --> src/audio.rs:205:9
[INFO] [stderr]     |
[INFO] [stderr] 205 |     let S = s;
[INFO] [stderr]     |         ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `R` should have a snake case name
[INFO] [stderr]    --> src/audio.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |     let R = r * sample_rate as f32;
[INFO] [stderr]     |         ^ help: convert the identifier to snake case: `r`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `N` should have a snake case name
[INFO] [stderr]    --> src/synth_gui.rs:435:27
[INFO] [stderr]     |
[INFO] [stderr] 435 | pub fn blackman(n: usize, N: usize) -> f32 {
[INFO] [stderr]     |                           ^ help: convert the identifier to snake case: `n`
[INFO] [stderr] 
[INFO] [stderr] warning: `ksynth2` (bin "ksynth2" test) generated 36 warnings (run `cargo fix --bin "ksynth2" --tests` to apply 8 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ksynth2-e00afc6a4ccb222e)
[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" "c4a8eb2ec5bb546982bad06ca1b80a2496a0a3e2afc473a54fc73c47d0faf7fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a8eb2ec5bb546982bad06ca1b80a2496a0a3e2afc473a54fc73c47d0faf7fb", kill_on_drop: false }`
[INFO] [stdout] c4a8eb2ec5bb546982bad06ca1b80a2496a0a3e2afc473a54fc73c47d0faf7fb
[INFO] testing kennoath/ksynth2 against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennoath%2Fksynth2" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kennoath/ksynth2 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kennoath/ksynth2
[INFO] finished tweaking git repo https://github.com/kennoath/ksynth2
[INFO] tweaked toml for git repo https://github.com/kennoath/ksynth2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kennoath/ksynth2 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f588fff0ee65fea135c0acb3a982fca9c7a0c5028a625e2aafe1270cf10f1cc3
[INFO] running `Command { std: "docker" "start" "-a" "f588fff0ee65fea135c0acb3a982fca9c7a0c5028a625e2aafe1270cf10f1cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f588fff0ee65fea135c0acb3a982fca9c7a0c5028a625e2aafe1270cf10f1cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f588fff0ee65fea135c0acb3a982fca9c7a0c5028a625e2aafe1270cf10f1cc3", kill_on_drop: false }`
[INFO] [stdout] f588fff0ee65fea135c0acb3a982fca9c7a0c5028a625e2aafe1270cf10f1cc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47b629dcbec407cd76f3ce90b6b98daac327720d1365061fd8fb44999389eb97
[INFO] running `Command { std: "docker" "start" "-a" "47b629dcbec407cd76f3ce90b6b98daac327720d1365061fd8fb44999389eb97", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling x11-dl v2.20.0
[INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5
[INFO] [stdout]      |
[INFO] [stdout] 1155 |     fn decode<D: Decoder>(d: &mut D) -> Result<Cow<'static, T>, D::Error> {
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     the parameter type `T` must be valid for the static lifetime...
[INFO] [stdout]      |     ...so that the type `T` will meet its required lifetime bounds...
[INFO] [stdout]      |
[INFO] [stdout] note: ...that is required by this bound
[INFO] [stdout]     --> /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/borrow.rs:180:30
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]      |
[INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T>
[INFO] [stdout]      |                    +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.4
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling winit v0.26.1
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0310`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "47b629dcbec407cd76f3ce90b6b98daac327720d1365061fd8fb44999389eb97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b629dcbec407cd76f3ce90b6b98daac327720d1365061fd8fb44999389eb97", kill_on_drop: false }`
[INFO] [stdout] 47b629dcbec407cd76f3ce90b6b98daac327720d1365061fd8fb44999389eb97
