[INFO] fetching crate aftershock 0.0.12...
[INFO] checking aftershock-0.0.12 against 1.55.0 for beta-1.56-3
[INFO] extracting crate aftershock 0.0.12 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate aftershock 0.0.12 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aftershock 0.0.12
[INFO] finished tweaking crates.io crate aftershock 0.0.12
[INFO] tweaked toml for crates.io crate aftershock 0.0.12 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate crates.io crate aftershock 0.0.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded minifb v0.19.1
[INFO] [stderr]   Downloaded sdl2 v0.34.3
[INFO] [stderr]   Downloaded sdl2-sys v0.34.3
[INFO] [stderr]   Downloaded lodepng v3.2.2
[INFO] [stderr]   Downloaded orbclient v0.3.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75b953a17cb32ef370a10d6ea7624fad88bd427d5480a3056e7023217cbe8031
[INFO] running `Command { std: "docker" "start" "-a" "75b953a17cb32ef370a10d6ea7624fad88bd427d5480a3056e7023217cbe8031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75b953a17cb32ef370a10d6ea7624fad88bd427d5480a3056e7023217cbe8031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75b953a17cb32ef370a10d6ea7624fad88bd427d5480a3056e7023217cbe8031", kill_on_drop: false }`
[INFO] [stdout] 75b953a17cb32ef370a10d6ea7624fad88bd427d5480a3056e7023217cbe8031
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d97715789d33c253dcdc3e769bdcd35a4adf45b11959e51042ee3c9dc3867284
[INFO] running `Command { std: "docker" "start" "-a" "d97715789d33c253dcdc3e769bdcd35a4adf45b11959e51042ee3c9dc3867284", kill_on_drop: false }`
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[INFO] [stderr]    Compiling pkg-config v0.3.19
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[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]    Compiling xkbcommon-sys v0.7.4
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[INFO] [stderr]    Compiling sdl2-sys v0.34.3
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[INFO] [stderr]     Checking aftershock v0.0.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `math::dist2`
[INFO] [stdout]  --> src/line.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{math::dist2, vector2::*};
[INFO] [stdout]   |             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/rasterizer.rs:31:43
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn pset_noop(rasterizer: &mut Rasterizer, idx: usize, color: Color) {
[INFO] [stdout]    |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/rasterizer.rs:31:55
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn pset_noop(rasterizer: &mut Rasterizer, idx: usize, color: Color) {
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sdw2`
[INFO] [stdout]    --> src/rasterizer.rs:733:21
[INFO] [stdout]     |
[INFO] [stdout] 733 |             let mut sdw2: f64 = w3 - w1;
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_sdw2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_u` is never read
[INFO] [stdout]    --> src/rasterizer.rs:735:21
[INFO] [stdout]     |
[INFO] [stdout] 735 |             let mut tex_u: f64 = 0.0;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_v` is never read
[INFO] [stdout]    --> src/rasterizer.rs:736:21
[INFO] [stdout]     |
[INFO] [stdout] 736 |             let mut tex_v: f64 = 0.0;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_w` is never read
[INFO] [stdout]    --> src/rasterizer.rs:737:21
[INFO] [stdout]     |
[INFO] [stdout] 737 |             let mut tex_w: f64 = 0.0;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_u` is never read
[INFO] [stdout]    --> src/rasterizer.rs:774:21
[INFO] [stdout]     |
[INFO] [stdout] 774 |                     tex_u = tex_su;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_v` is never read
[INFO] [stdout]    --> src/rasterizer.rs:775:21
[INFO] [stdout]     |
[INFO] [stdout] 775 |                     tex_v = tex_sv;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_w` is never read
[INFO] [stdout]    --> src/rasterizer.rs:776:21
[INFO] [stdout]     |
[INFO] [stdout] 776 |                     tex_w = tex_sw;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_u` is never read
[INFO] [stdout]    --> src/rasterizer.rs:828:21
[INFO] [stdout]     |
[INFO] [stdout] 828 |                     tex_u = tex_su;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_v` is never read
[INFO] [stdout]    --> src/rasterizer.rs:829:21
[INFO] [stdout]     |
[INFO] [stdout] 829 |                     tex_v = tex_sv;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_w` is never read
[INFO] [stdout]    --> src/rasterizer.rs:830:21
[INFO] [stdout]     |
[INFO] [stdout] 830 |                     tex_w = tex_sw;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytecount`
[INFO] [stdout]   --> src/font.rs:60:7
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let bytecount = ttf_file.read_to_end(&mut ttf_buffer).expect("ERROR - FONT: TTF File could not be read.");
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytecount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:728:17
[INFO] [stdout]     |
[INFO] [stdout] 728 |             let mut dy2: i64 = y3 - y1;
[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/rasterizer.rs:729:17
[INFO] [stdout]     |
[INFO] [stdout] 729 |             let mut dx2: i64 = x3 - x1;
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:730:17
[INFO] [stdout]     |
[INFO] [stdout] 730 |             let mut du2: f64 = u3 - u1;
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:731:17
[INFO] [stdout]     |
[INFO] [stdout] 731 |             let mut dv2: f64 = v3 - v1;
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:732:17
[INFO] [stdout]     |
[INFO] [stdout] 732 |             let mut dw2: f64 = u3 - u1;
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:733:17
[INFO] [stdout]     |
[INFO] [stdout] 733 |             let mut sdw2: f64 = w3 - w1;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:778:25
[INFO] [stdout]     |
[INFO] [stdout] 778 |                     let mut tstep: f64 = 1.0 / (bx - ax) as f64;
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:831:25
[INFO] [stdout]     |
[INFO] [stdout] 831 |                     let mut tstep: f64 = 1.0 / (bx - ax) as f64;
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blend_color`
[INFO] [stdout]    --> src/rasterizer.rs:246:8
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn blend_color(&mut self, src: Color, dst: Color) -> Color {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking wayland-cursor v0.27.0
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> examples/sdl2_template.rs:188:16
[INFO] [stdout]     |
[INFO] [stdout] 188 |             if (self.is_control_down(CONTROL_LEFT)) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> examples/sdl2_template.rs:192:16
[INFO] [stdout]     |
[INFO] [stdout] 192 |             if (self.is_control_down(CONTROL_RIGHT)) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> examples/sdl2_template.rs:196:16
[INFO] [stdout]     |
[INFO] [stdout] 196 |             if (self.is_control_down(CONTROL_DOWN)) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> examples/sdl2_template.rs:200:16
[INFO] [stdout]     |
[INFO] [stdout] 200 |             if (self.is_control_down(CONTROL_UP)) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::spawn`
[INFO] [stdout]   --> examples/asteroids.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{thread::spawn, time::Instant};
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `math::dist2`
[INFO] [stdout]  --> src/line.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{math::dist2, vector2::*};
[INFO] [stdout]   |             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mouse_x`
[INFO] [stdout]    --> examples/sdl2_template.rs:155:17
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let mut mouse_x: f32 = 0.0;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mouse_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mouse_y`
[INFO] [stdout]    --> examples/sdl2_template.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let mut mouse_y: f32 = 0.0;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mouse_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xrel`
[INFO] [stdout]    --> examples/sdl2_template.rs:168:41
[INFO] [stdout]     |
[INFO] [stdout] 168 |                     Event::MouseMotion {xrel, yrel, x, y, ..} => {
[INFO] [stdout]     |                                         ^^^^ help: try ignoring the field: `xrel: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `yrel`
[INFO] [stdout]    --> examples/sdl2_template.rs:168:47
[INFO] [stdout]     |
[INFO] [stdout] 168 |                     Event::MouseMotion {xrel, yrel, x, y, ..} => {
[INFO] [stdout]     |                                               ^^^^ help: try ignoring the field: `yrel: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mouse_state`
[INFO] [stdout]    --> examples/sdl2_template.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |             let mouse_state = event_pump.mouse_state();
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mouse_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/sdl2_template.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let mut mouse_x: f32 = 0.0;
[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]    --> examples/sdl2_template.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let mut mouse_y: f32 = 0.0;
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/rasterizer.rs:31:43
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn pset_noop(rasterizer: &mut Rasterizer, idx: usize, color: Color) {
[INFO] [stdout]    |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/rasterizer.rs:31:55
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn pset_noop(rasterizer: &mut Rasterizer, idx: usize, color: Color) {
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sdw2`
[INFO] [stdout]    --> src/rasterizer.rs:733:21
[INFO] [stdout]     |
[INFO] [stdout] 733 |             let mut sdw2: f64 = w3 - w1;
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_sdw2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_u` is never read
[INFO] [stdout]    --> src/rasterizer.rs:735:21
[INFO] [stdout]     |
[INFO] [stdout] 735 |             let mut tex_u: f64 = 0.0;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_v` is never read
[INFO] [stdout]    --> src/rasterizer.rs:736:21
[INFO] [stdout]     |
[INFO] [stdout] 736 |             let mut tex_v: f64 = 0.0;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_w` is never read
[INFO] [stdout]    --> src/rasterizer.rs:737:21
[INFO] [stdout]     |
[INFO] [stdout] 737 |             let mut tex_w: f64 = 0.0;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_u` is never read
[INFO] [stdout]    --> src/rasterizer.rs:774:21
[INFO] [stdout]     |
[INFO] [stdout] 774 |                     tex_u = tex_su;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_v` is never read
[INFO] [stdout]    --> src/rasterizer.rs:775:21
[INFO] [stdout]     |
[INFO] [stdout] 775 |                     tex_v = tex_sv;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_w` is never read
[INFO] [stdout]    --> src/rasterizer.rs:776:21
[INFO] [stdout]     |
[INFO] [stdout] 776 |                     tex_w = tex_sw;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_u` is never read
[INFO] [stdout]    --> src/rasterizer.rs:828:21
[INFO] [stdout]     |
[INFO] [stdout] 828 |                     tex_u = tex_su;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_v` is never read
[INFO] [stdout]    --> src/rasterizer.rs:829:21
[INFO] [stdout]     |
[INFO] [stdout] 829 |                     tex_v = tex_sv;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tex_w` is never read
[INFO] [stdout]    --> src/rasterizer.rs:830:21
[INFO] [stdout]     |
[INFO] [stdout] 830 |                     tex_w = tex_sw;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytecount`
[INFO] [stdout]   --> src/font.rs:60:7
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let bytecount = ttf_file.read_to_end(&mut ttf_buffer).expect("ERROR - FONT: TTF File could not be read.");
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytecount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:728:17
[INFO] [stdout]     |
[INFO] [stdout] 728 |             let mut dy2: i64 = y3 - y1;
[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/rasterizer.rs:729:17
[INFO] [stdout]     |
[INFO] [stdout] 729 |             let mut dx2: i64 = x3 - x1;
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:730:17
[INFO] [stdout]     |
[INFO] [stdout] 730 |             let mut du2: f64 = u3 - u1;
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:731:17
[INFO] [stdout]     |
[INFO] [stdout] 731 |             let mut dv2: f64 = v3 - v1;
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:732:17
[INFO] [stdout]     |
[INFO] [stdout] 732 |             let mut dw2: f64 = u3 - u1;
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:733:17
[INFO] [stdout]     |
[INFO] [stdout] 733 |             let mut sdw2: f64 = w3 - w1;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:778:25
[INFO] [stdout]     |
[INFO] [stdout] 778 |                     let mut tstep: f64 = 1.0 / (bx - ax) as f64;
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rasterizer.rs:831:25
[INFO] [stdout]     |
[INFO] [stdout] 831 |                     let mut tstep: f64 = 1.0 / (bx - ax) as f64;
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blend_color`
[INFO] [stdout]    --> src/rasterizer.rs:246:8
[INFO] [stdout]     |
[INFO] [stdout] 246 |     fn blend_color(&mut self, src: Color, dst: Color) -> Color {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 07s
[INFO] running `Command { std: "docker" "inspect" "d97715789d33c253dcdc3e769bdcd35a4adf45b11959e51042ee3c9dc3867284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d97715789d33c253dcdc3e769bdcd35a4adf45b11959e51042ee3c9dc3867284", kill_on_drop: false }`
[INFO] [stdout] d97715789d33c253dcdc3e769bdcd35a4adf45b11959e51042ee3c9dc3867284
